AC 150/5345-42H, Specification for Airport Light Bases, Transformer

U.S. Department of Transportation Federal Aviation Administration

Advisory Circular

Subject: Specification for Airport Light

Bases, Transformer Housings, Junction

Boxes, and Accessories

Date: 11/06/2015

Initiated by: AAS-100

AC No: AC 150/5345-42H

Change:

1. Purpose.

This advisory circular (AC) contains the specifications for airport light bases, transformer

housings, junction boxes, accessories, elevated light fixture covers and stakes. This AC

is not intended to be a compilation of currently available product designs. This AC

provides the basic standard requirements for critical dimensions and performance

requirements to which all manufacturers must demonstrate compliance.

2. Effective date. Effective six months after the issue date of this AC, only equipment qualified per this

specification will be listed in AC 150/5345-53, Airport Lighting Equipment Certification

Program.

3. Cancellation.

AC 150/5345-42G, Specification for Airport Light Bases, Transformer Housings,

Junction Boxes, and Accessories, dated September 28, 2012, is canceled.

4. Application. The Federal Aviation Administration (FAA) recommends the guidance and specifications

in this Advisory Circular for airport light bases, transformer housings, junction boxes,

accessories, elevated light covers and stakes. In general, use of this AC is not mandatory.

However, use of this AC is mandatory for all projects funded with federal grant monies

through the Airport Improvement Program (AIP) and with revenue from the Passenger

Facility Charges (PFC) Program. See Grant Assistance No. 34, Policies, Standards, and

Specifications, and PFC Assurance No.9, Standards and Specifications. All lighting

designs contained in this standard are the only means acceptable to the Administrator to

meet the lighting requirements of Title 14 CFR Part 139, Certification of Airports,

Section 139.311, Marking, Signs and Lighting.

5. Principal changes.

a. Paragraph 1.1 - Type number L-894 for elevated light covers is proposed. Type

number L-895 for elevated light mounting stakes is proposed.

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b. Paragraph 3.1 – a note is added to explain light base modifications.

c. Add paragraph 3.1.3.5.2 to describe elevated light cover plate requirements.

d. Paragraph 3.2.2 – the last sentence is removed because information about light base

modifcation is already added to paragraph 3.1.

e. Paragraph 3.2.3.1 - elevated light cover plates and elevated light mounting stakes are

removed from AC 150/5345-46, Specification for Runway and Taxiway Light

Fixtures, and added to this AC to better facilitate common hardware in one AC.

f. Paragraphs 3.2.3.1.1 through 3.2.3.1.4 are added to describe elevated light cover plate

requirements.

g. Paragraph 3.2.3.2 is added to include elevated light fixture mounting stakes with

common hardware.

h. Paragraphs 3.2.3.2.1 through 3.2.3.2.7 are added to describe elevated light mounting

stake requirements.

i. Paragraph 4.2.8 is added to provide tests and procedures for elevated light cover

plates.

j. Paragraph 4.2.8.1.1 is modified to better facilitate testing with a rubber block of

increased thickness.

k. Paragraph 4.2.9 is added to provide tests and procedures for elevated light mounting

stakes.

l. Figure 3 is modified to show the correct Size E bolt pattern

m. Figures 6 and 7 “AAA” dimension is changed in both figures for manufacturing

uniformity among one piece and sectional light bases.

n. Figure 7 – AAA dimension tolerance is changed to match the tolerance in Figure 6

for better uniformity.

o. Figure 9 – mud cover rings have a ± 1/16 inch tolerance added to better facilitate

manufacturing.

6. Metric units. To promote an orderly transition to metric units, this AC includes both English and

metric dimensions. The metric conversions may not be exact equivalents, and until there

is an official changeover to the metric system, the English dimensions will govern.

7. Feedback on this AC.

If you have suggestions for improving this AC, you may use the Advisory Circular

Feedback form at the end of this AC.

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8. Copies of this AC are available at:

www.faa.gov/airports/resources/advisory_circulars/

Michael J. O’Donnell

Director of Airport Safety and Standards

http://www.faa.gov/airports/resources/advisory_circulars/

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Table of Contents

Chapter 1. Scope .......................................................................................................................... 1 1.1 Type. ............................................................................................................................. 1 1.2 Class. ............................................................................................................................. 1

1.3 Size. ............................................................................................................................... 2

Chapter 2. Applicable Documents .............................................................................................. 3 2.1 FAA ACs and Engineering Briefs (EB)........................................................................ 3 2.2 Military Standard and Specification. ............................................................................ 3

2.2.1 Military Standard. ................................................................................................... 3

2.2.2 Military Specification. ............................................................................................ 3 2.3 American Society for Testing and Materials International (ASTM) Specifications,

Test Methods, Standard Practices, and Recommended Practices. ................................ 3

2.4 American Society of Mechanical Engineers (ASME). ................................................. 4 2.5 American Society for Quality (ASQ). .......................................................................... 4 2.6 Miscellaneous Documents. ........................................................................................... 4

Chapter 3. Requirements ............................................................................................................ 5 3.1 General Description and Intended Use. ........................................................................ 5

3.1.1 Type L-867 Bases. .................................................................................................. 5 3.1.2 Type L-868 Bases. .................................................................................................. 5 3.1.3 General Accessories. ............................................................................................... 5

3.2 Fabrication and Materials. .......................................................................................... 10 3.2.1 Type L-867 Class IA and Class IB Bases and Extensions. .................................. 10

3.2.2 Type L-867 Class IIA and Class IIB Bases and Extensions. ................................ 12

3.2.3 Type L-867 Accessories. ...................................................................................... 13

3.2.4 Type L-868 Class IA and Class IB Bases and Extensions. .................................. 16 3.2.5 Type L-868 Accessories. ...................................................................................... 18

3.2.6 Grounding Lugs. ................................................................................................... 18 3.2.7 Drains. ................................................................................................................... 19 3.2.8 Protective Coating. ................................................................................................ 19

Chapter 4. Quality Assurance Provisions ................................................................................ 21 4.1 Type L-867 Class IA and Class IB Certification Testing. .......................................... 21

4.1.1 Type L-867 Class IA and Class IB Load Test. ..................................................... 21 4.1.2 Type L-867 Class IA and Class IB Weld Integrity Test. ...................................... 22

4.1.3 Type L-867 Class IA and Class IB Dimensional Tests. ....................................... 23 4.1.4 Type L-867 Class IA and Class IB Protective Coating Thickness Test. .............. 23

4.1.5 Type L-867 Class IA and Class IB Visual Inspection. ......................................... 23 4.1.6 Type L-867 Class IB Potassium Acetate Test. ..................................................... 23

4.2 Type L-867 Class IIA and Class IIB Certification Testing. ....................................... 24 4.2.1 Type L-867 Class IIA and Class IIB Load Test. .................................................. 24 4.2.2 Type L-867 Class IIA and Class IIB Weld Integrity Test. ................................... 24

4.2.3 Type L-867 Class IIA and Class IIB Temperature Shock Test. ........................... 24 4.2.4 Type L-867 Class IIA and Class IIB Dimensional Tests. ..................................... 24 4.2.5 Type L-867 Class IIA and Class IIB Protective Coating Thickness Test............. 25

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4.2.6 Type L-867 Class IIA and Class IIB Visual Inspection. ...................................... 25

4.2.7 Type L-867 Class IIB Potassium Acetate Test. .................................................... 25 4.2.8 Type L-894 Elevated Light Cover Load and Bending Moment Test. .................. 25 4.2.9 Type L-895 Elevated Light Mounting Stake Dimensional Tests. ....................... 25

4.3 Type L-868 Class IA and Class IB Certification Testing. .......................................... 26 4.3.1 Type L-868 Class IA and Class IB Load Test. ..................................................... 26 4.3.2 Type L-868 Class IA and Class IB Fatigue Test. ................................................. 26 4.3.3 Type L-868 Class IA and Class IB Impact Test. .................................................. 26 4.3.4 Type L-868 Class IA and Class IB Flange Bolt Torque Test. .............................. 26

4.3.5 Type L-868 Class IA and Class IB Weld Integrity Test. ...................................... 26 4.3.6 Type L-868 Class IA and Class IB Dimensional Tests. ....................................... 26 4.3.7 Type L-868 Class IA and Class IB Protective Coating Thickness Test. .............. 27 4.3.8 Type L-868 Class IA and Class IB Visual Inspection. ......................................... 27

4.3.9 Type L-868 Class IB Potassium Acetate Test. ..................................................... 27 4.3.10 Type L-868 Torque Test for Adjustable Height Bases and Extensions................ 27

4.4 Production Testing. ..................................................................................................... 28 4.4.1 Lot Size. ................................................................................................................ 28

4.4.2 Sample Size and Acceptance Criteria. .................................................................. 28 4.4.3 Retesting. .............................................................................................................. 28 4.4.4 Type L-867, Class IA and Class IB. ..................................................................... 28

4.4.5 Type L-867 Class IIA and Class IIB..................................................................... 28 4.4.6 Type L-868 Class IA and Class IB. ........................................................................ 29

Chapter 5. Preparation For Delivery. ...................................................................................... 31 5.1 Packing. ....................................................................................................................... 31 5.2 Marking. ...................................................................................................................... 31

Appendix A. 10-inch (254 mm) Light Base. ............................................................................. 41

List of Figures

Figure 1. Flange, Type L-867, Class IA, Class IB, Class IIA, Class IIB .................................... 32 Figure 2. Body, Type L-867, Class IA, Class IB, Class IIA, Class IIB ....................................... 33 Figure 3. Extensions, Type L-867, Class IA, Class IB, Class IIA, Class IIB .............................. 34 Figure 4. Accessories, Type L-867 .............................................................................................. 34 Figure 5. Flange, Type L-868, Class IA, Class IB ....................................................................... 36

Figure 6. Body, Type L-868, Class IA, Class IB ......................................................................... 37 Figure 7. Sectional Body, Type L-868, Class IA, Class IB ......................................................... 38

Figure 8. Extensions, Type L-868 Class IA, Class IB ................................................................. 39 Figure 9. Accessories, Type L-868 .............................................................................................. 40 Figure A-1. Extensions and Spacers for 10-inch (254 mm) Diameter Type L-868 Base, for

Maintenance of Existing Installations Only ........................................................................... 42

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Chapter 1. SCOPE

This specification sets forth the requirements for light bases, transformer housings, junction

boxes, and related accessories.

1.1 Type.

The Federal Aviation Administration (FAA) Type designation of the light

bases,extensions, elevated light covers and elevated light stake mountings are as follows:

Type L-867 Bases and extensions for applications subject to occasional light vehicular

loading but no aircraft or other heavy vehicular loading.

Type L-868 Bases and extensions for applications subject to aircraft and other heavy

vehicular loading.

Type L-894 Elevated light cover – not load bearing and mounts on an L-867 light base.

Type L-895 Elevated light stake mounting.

1.2 Class.

The following class designations apply to Type L-867, L-868, and L-894:

Class IA Bases, extensions and elevated light covers that are fabricated from metal

in exact conformance to the critical dimensions and requirements

necessary for standardization between parts specified herein.

Class IB Bases, extensions and elevated light covers that are fabricated from metal

in exact conformance to the critical dimensions and requirements

necessary for standardization between parts specified herein and which

have been subjected to corrosion testing and found resistant to deicing

fluids containing potassium acetate.

Class IIA Bases, extensions and elevated light covers that are fabricated from non-

metallic materials in exact conformance to the critical dimensions and

requirements necessary for standardization between parts specified herein.

Class IIB Bases, extensions and elevated light covers that are fabricated from non-

metallic materials in exact conformance to the critical dimensions and

requirements necessary for standardization between parts specified herein

and which have been subjected to corrosion testing and found resistant to

deicing fluids containing potassium acetate.

Note 1 Bases, extensions and elevated light covers that meet the Class IB or Class

IIB requirements are also considered to meet Class IA or Class IIA

requirements, respectively.

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Note 2 Bases, extensions and elevated light cover plates that are fabricated as

either Class IA or Class IB are to perform the same exact function. The

only difference between the two classes of bases and extensions is the

possible difference in metal or metal surface treatment required to meet

the Class IB level of testing.

Note 3 Bases, extensions and elevated light covers that are fabricated as either

Class IIA or Class IIB are to perform the same exact function. The only

difference between the two bases and extensions is the possible difference

in material or material surface treatment required to meet the Class IIB

level of testing.

Note 4 L-895 elevated light base stakes are Class IA only.

1.3 Size.

Five base size designations are assigned. The size refers to the nominal diameter of the

light base and L-894 elevated light cover plates. Sizes and applicable types are as follow:

Note: Example: For a 12 inch L-868 light base, the designation is L-868E.

Size Type

Size A - 8 inch (203 mm) Type L-868

Size B - 12 inch (305 mm) Type L-867, Type L-868, Type L-894

Size C - 15 inch (381 mm) Type L-868

Size D - 16 inch (406 mm) Type L-867

Size E - 24 inch (610 mm) Type L-867

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Chapter 2. APPLICABLE DOCUMENTS

The following documents are referenced or complement the information presented in this AC:

2.1 FAA ACs and Engineering Briefs (EB).

The FAA documents listed below contain information pertinent to this specification.

AC 150/5340-30 Design and Installation Details for Airport Visual Aids.

Copies of the current edition of the AC may be obtained at no

charge from the following FAA website:

www.faa.gov/airports/resources/advisory_circulars/

AC 150/5345-53 Airport Lighting Equipment Certification Program

EB 83 In-pavement Light Fixture Bolts. Copies of the EB may be

obtained at no charge from the following FAA website:

www.faa.gov/airports/engineering/engineering_briefs/

2.2 Military Standard and Specification.

The following Military Standard and Specification (in effect on the date of application for

qualification) form a part of this specification and are applicable to the extent specified

herein. Copies of military standards and specifications may be obtained at no charge

from the following website: quicksearch.dla.mil/

2.2.1 Military Standard.

MIL-STD-810E Environmental Engineering Considerations and Laboratory

Tests

2.2.2 Military Specification.

MIL-PRF-26915 Primer Coating, for Steel Surfaces

2.3 American Society for Testing and Materials International (ASTM) Specifications,

Test Methods, Standard Practices, and Recommended Practices.

The following specifications, test methods, standard practices, and recommended

practices (in effect on the date of application for qualification to AC150/5345-53) form a

part of this specification and are applicable to the extent specified herein. Copies of

ASTM specifications, test methods, and recommended practices may be obtained from

the American Society for Testing and Materials International, or from the website:

www.astm.org/

A36 Standard Specification for Carbon Structural Steel

A123/A123M Standard Specification for Zinc (Hot-Dip Galvanized) Coatings

on Iron and Steel Products

http://www.faa.gov/airports/resources/advisory_circulars/

http://www.faa.gov/airports/engineering/engineering_briefs/

http://www.astm.org/

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A 153 Standard Specification for Zinc Coating (Hot-Dip) on Iron and

Steel Hardware

A385/A385M Standard Practice for Providing High-Quality Zinc Coatings

(Hot-Dip)

B 633 Standard Specification for Electrodeposited Coatings of Zinc

on Iron and Steel

C109/C109M Standard Test Method for Compressive Strength of Hydraulic

Cement Mortars (Using 2-in. or [50-mm] Cube Specimens

C617 Standard Practice for Capping Cylindrical Concrete Specimens

C827/C827M Standard Test Method for Change in Height at Early Ages of

Cylindrical Specimens of Cementitious Mixtures

D 2240 Standard Test Method for Rubber Property-Durometer

Hardness

E 23 Standard Test Methods for Notched Bar Impact Testing of

Metallic Materials

2.4 American Society of Mechanical Engineers (ASME).

The following standard (in effect on the date of application for qualification) forms a part

of this specification and is applicable to the extent specified herein. Copies of ASME

standards may be obtained from the American Society of Mechanical Engineers, or from

the website: www.asme.org/

B46.1 Surface Texture, Surface Roughness, Waviness and Lay

2.5 American Society for Quality (ASQ).

The following standard (in effect on the date of application for qualification) forms a part

of this specification and is applicable to the extent specified herein. Copies of ASQ

standards may be obtained from the American Society for Quality Control, or from the

website: www.asq.org/

ANSI/ASQ Z1.4 and Z1.9 Sampling Procedures and Tables

2.6 Miscellaneous Documents.

The Design, Installation and Maintenance of In-Pavement Airport Lighting, by Arthur S.

Schai, F.I.E.S. Library of Congress Catalog Card Number 86-81865. This document

does not form a part of this specification but is listed as valuable resource material on the

design and installation of light bases. (Reference AC 150/5340-30 for installation details

and options.) Download at:

www.faa.gov/airports/resources/advisory_circulars/index.cfm/go/document.list.

http://www.asme.org/

http://www.asq.org/

http://www.faa.gov/airports/resources/advisory_circulars/index.cfm/go/document.list

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Chapter 3. REQUIREMENTS

3.1 General Description and Intended Use.

Note: The modification of standard certified components renders them non-standard and

voids their certification. The only exception to this is the cutting of additional conduit

holes during installation and the installation of threaded inserts in the light base upper

flange because they do not adversely affect the structural integrity. See paragraph 3.2.8

for corrosion control considerations when modifying any galvanized light base.

3.1.1 Type L-867 Bases.

Type L-867 is used as a mounting base for airport light fixtures, as a transformer housing

and as an electrical junction box. The Type L-867 base must be designed to withstand

occasional light vehicular loads. It is subject to direct earth burial with and without

concrete backfill.

3.1.2 Type L-868 Bases.

Type L-868 is used as a mounting base for in-pavement airport light fixtures, as a

housing for series circuit transformers, and as an electrical junction box. It must be

designed to withstand aircraft and other heavy vehicular loadings. The design must allow

the installation of any in-pavement fixture.

The Type L-868 top flange and base must be designed to meet the dimensional

requirements and performance requirements, as detailed in this document, to assure

proper mating between the base and an in-pavement light fixture.

3.1.3 General Accessories.

Accessories are used to make corrections and adjustments to Type L-867 and Type L-868

bases, and to facilitate proper performance of the lighting fixture that the base supports.

Examples of accessories are listed below, and when used in conjunction with a base

specified in this AC, must not reduce the performance capabilities of that base.

3.1.3.1 Spacer Rings.

Spacer rings are available in various designs depending on the application and

are available in various thicknesses and diameters and are generally installed

between the base flange and the light fixture or other accessory.

See Figures 3 and 8 for minimum and maximum height.

To preserve the base integrity and proper bolt torque, a maximum of

three spacer rings may be stacked together.

Each type of L-868 spacer ring, when interfaced to the fixture housing,

may be provided with a protective dam that encircles the spacer ring.

The protective dam is 1/8 inch shorter than the light fixture housing it

protects and has an inner diameter (ID) that is a maximum 1/4 inch greater

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than the outer diameter (OD) of the fixture housing. The OD of the

protective dam must not exceed the OD of the light base top flange ring.

The various types of spacer rings are noted in paragraphs 3.1.3.1.1 through

3.1.3.1.4.

Note 1: The protective dam prevents grout, sealant, or other pavement

material from sealing the light fixture in place.

Note 2: On field adjustable bases and extensions, the protective dam may be

integral to the base or extension top flange ring as long as the requirements

noted above and the base or extension top flange ring dimensions comply with

the dimensional requirements of this AC.

3.1.3.1.1 Flat Spacer Ring.

A flat spacer ring is used to provide height adjustment for Type L-867 or Type

L-868 bases.

3.1.3.1.2 Grooved Spacer Ring.

A grooved spacer ring, when used with a provided “O” ring gasket, is used to

provide a seal between the in-pavement fixture and spacer ring for the purpose

of minimizing the entrance of surface water and other liquids into the Type L-

868 base.

3.1.3.1.3 Tapered Spacer Ring.

Tapered spacer rings are used to provide level and/or height correction for

out-of-level Type L-868 and L-867 bases.

3.1.3.1.4 Azimuth Correction Spacer Ring.

Azimuth correction spacer rings are used to correct the alignment of light

fixtures attached to misaligned Type L-868 bases.

3.1.3.2 Conduit Connections.

Conduit connections permit connection of underground conduit to the bases.

Conduit connections (number, type, size, and location) are to be provided as

specified and must meet the environmental requirements of the Class base

with which they are utilized. Conduit connections may include hubs,

grommets, or other devices suited for the application.

3.1.3.3 Adapter Rings.

Adapter rings are used for converting the bolt circle of an existing base to that

of a fixture having a different bolt circle or to that of a threaded adaptor ring

for adjustable threaded extensions. No modification of the existing base

should be required. All fixture mounting bolts must have at least 1/2 inch (13

mm) of thread engagement into the ring.

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3.1.3.4 Base Extensions, Fixed and Adjustable.

Base extensions are used to provide height adjustments to both Type L-867

and Type L-868 bases. They are used with bases when the required new

elevation exceeds the capability of spacer rings to obtain it.

Base extension capability can be provided by installing either a fixed

extension or a field adjustable extension that interfaces to the top flange of

an existing type light base and has the same dimensional top flange and

fixture clearance as the existing base.

Care should be taken to ensure that the proper Class of extension is

utilized. Extensions are equal to or greater than 1-3/4 inches (44 mm) for

Type L-867 and 2-1/4 inches (63.5 mm) for Type L-868.

Extensions and spacers will be dimensioned per Figures 3 and 8. Note

that fixed extensions are shown for dimensional purposes only.

Various methods of providing adjustable heights are possible (including

proprietary stainless steel adjustable threaded extensions), but all must

meet the applicable dimensions in Figures 3 and 8.

Type L-867 bases with provisions for height adjustment may be specified to

meet local conditions. The base extensions, which rely on the top flange and

the embedment material to support the load, are not suitable for direct earth

burial. If the adjustable height base is intended to support the load without top

flange and embedment assistance, it is suitable for direct earth burial and must

be capable of withstanding the full load test requirement at its maximum

extension.

All L-868 bases that utilize a method of height adjustment that is integral to

the base or extension and is intended for field adjustment must, during

qualification testing, be subjected to a torque test to ensure there will be no

top flange rotation under normal operating conditions. Reference paragraph

4.3.10.

3.1.3.5 Covers.

Various covers are available to facilitate the proper installation of bases. All

covers must utilize manufacturer furnished fully threaded (tap bolts) 18-8

stainless steel, hex head 3/8 bolts (or coated bolts per Engineering Brief 83)

sufficiently long to provide full thread engagement into the mounting surface.

3.1.3.5.1 Blank Covers.

Blank covers are used to provide a cover for bases when no light fixture is to

be installed.

Blank covers must be metallic and meet the applicable dimensional

requirements of the type base to which they are attached. For Type L-868

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load bearing bases, the cover must be equal in thickness to the light

fixture.

For Type L-867B and Type L-867D non-load bearing bases, the cover

must be a minimum of 3/8 inches (10 mm). For Type L-867E bases, the

cover must be a minimum of 1/2 inch (13 mm).

Covers weighing more than 30 pounds (13.6 kilograms) must have (2)

opposite holes of the (6) 7/16 inch (11 mm) through holes tapped 1/2"-13

as a means to affix a lifting eye bolt for ease of removal.

All cover plates 1/2 inch (13 mm) or thicker must have all bolt holes

counter-bored 1-1/8 inches × 3/8 inches (29 mm × 10 mm) deep.

3.1.3.5.2 Elevated Light Covers.

Elevated light covers are used to mount elevated lights on an L-867 light base.

Elevated light covers must be fabricated of metal and meet the

dimensional requirements so that they may be attached to an L-867 light

base.

Elevated light covers must meet the load and bending requirements in

3.2.3.1.4.

3.1.3.5.3 Mud Covers.

Mud covers may stand alone or may be used in conjunction with plywood

covers on Type L-867 and Type L-868 bases to protect the base flange during

construction, and to include surface marking to facilitate locating the center of

the base when coring out to locate the base after pavement overlay. Mud

covers are appropriately sized for the specific bases they are to protect.

3.1.3.5.4 Shipping Covers.

Plywood covers are used to protect bases during shipping and installation and

are to be installed on all base or base extension shipments.

For all galvanized bases, a 3 mil (0.003 inch ) polyethylene shipping

gasket may be installed between the base and plywood cover or, as an

alternative, the plywood cover should be waxed on the bottom surface to

eliminate the bonding action of the plywood and zinc.

The Type L-868 plywood cover should also be waxed on the OD edge to

facilitate easy removal from any surrounding embedment material.

Plywood should be exterior grade 1/2 inch (13 mm) thick Bb/Cc or other

material of equal strength and weather resistance (reference Figure 9) for

Type L-867 light bases.

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For Type L-868B light bases, the plywood must be equal to the thickness

of the light fixture 3/4 inch (19 mm) or 1-1/4 inch (31.75 mm) for L-868C.

When shipped with a mud cover on top, the total thickness of mud cover

and plywood cover must equal the thickness of the light fixture.

Note: The thickness of the light fixture is the height of fixture flange at the

OD of the fixture.

3.1.3.6 Grounding Connections.

To provide maintenance personnel electrical safety, The manufacturer must

install both an internal and external ground strap. The ground strap functions

as a means to connect a ground lug that is connected to an earth ground or a

safety ground conductor.

For Class I bases, a metallic ground connector or strap must be welded to

the interior and exterior wall of each base before applying surface

protection. The details and location of the ground straps are shown in

Figures 2 and 6.

The location of the connector may be varied to meet specific conditions.

A bronze or copper ground connector should not be fastened to the ground

connector or strap until after the base surface protection is applied.

For Class II bases, the ground connector or strap must provide a positive

ground connection path to a light fixture.

Note: Under no circumstances should an exothermic weld be used to attach a

ground or counterpoise connection to a galvanized light base because of the

potential for heat damage to the galvanized coating. Under field conditions,

repairs to the zinc coating after an exothermic weld are usually ineffective. If

the galvanized coating is compromised, the corrosion of exposed light base

steel will accelerate.

3.1.3.6.1 Grounding Connections using Exothermic Welds.

For light bases that will use exothermically welded ground connections, the

manufacturer may offer a light base with a 304 stainless steel ground rod that

is 0.75 inch (19 millimeters (mm)) outside diameter by 3.00 inches (76.2 mm)

long. The rod must be welded to the light base before applying any form of

surface protection. The rod must be welded to the exterior of the light base at

the same locations as a ground strap per Figures 2 and 6.

3.1.3.7 Drains.

The conduit/base system should have drains installed in the bases at low

points in the system to provide for drainage of water and deicing fluids away

from the base and conduit system. If water and deicing fluids are allowed to

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pool for long periods of time in the light base, they will hasten corrosion of

both the conduit and base system.

3.2 Fabrication and Materials.

Bases and related accessories, designed to function as light bases, transformer housings,

and junction boxes, must be fabricated of suitable material to meet the following

standards. Appropriate separation material must be used between dissimilar metals to

prevent galvanic action between flange rings, spacer rings etc. Copper ground

components and stainless steel bolts are exempted. This separation material must not

deform at 450 psi (a load equivalent to the L-868 load test) to prevent compression and

subsequent loosening of bolts.

3.2.1 Type L-867 Class IA and Class IB Bases and Extensions.

Type L-867 Class IA bases, extensions, and Type L-894 elevated light covers

must be fabricated from an appropriate metal using fabrication techniques that

will produce units meeting the testing requirements in paragraph 4.1.

Class IB bases must be fabricated from metal using fabrication techniques that

will produce units meeting the appropriate testing requirements of paragraph 4.1.

All bases and extensions (excluding spacers and covers) must be labeled using a

suitable long lasting contrasting color ink stamp with either the letter A or B to

indicate the Class suffix under which the certification has been obtained.

The stamp must be a minimum of one inch (25 mm) in height and placed on the

exterior and interior walls of the light base, no more than 6 inches (152 mm)

below the base flange. All components described in this paragraph must be

manufactured such that their use does not require existing bases, extensions or

any existing components installed in the ground to be cut or modified in any

manner.

3.2.1.1 Flange.

The dimensions of the flange must be as shown in Figure 1. The flat surface

of the flange must be installed at an angle of 90 ± 0.25 degrees to the axis of

the cylindrical body. The flange must be continuously attached to the body to

provide a watertight seal.

3.2.1.2 Body.

The body, including the sides and bottom, must be fabricated from one or

more pieces. The dimensions of the body must be as shown in Figure 2.

Two conduit entrances must be provided and installed near the bottom of

the base. The location and size, per Figure 2, is considered standard.

However, the location, number, type, and size can be altered to meet

project requirements.

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Any sharp edges formed on the inside of the body must be removed to

prevent cutting or chafing the cable insulation.

The length of the body section as shown in Figure 2 is considered

standard, but the length may be varied to meet special conditions.

3.2.1.3 Extensions.

The dimensions of the extensions and spacer rings must be per Figure 3.

Extensions for Type L-867 bases must be ordered to length with a minimum

length of 1-3/4 inches (44.5 mm) and a tolerance of ±l/16 inch (1.5 mm). Flat

spacer rings are utilized for height adjustments from l/16 inch (1.5 mm)

through l-11/16 inches (42.86 mm) in l/16 inch (1.5 mm) increments.

3.2.1.4 Adjustable Height Type L-867 Class IA and Class IB Bases and

Extensions.

Adjustable height Type L-867, Class IA and IB bases and extensions must

have a provision for adjusting the height of the top flange.

Various methods of providing height adjustment are possible (including

proprietary stainless steel adjustable threaded extensions). The top flange

must have the identical dimensions as the top flange of the standard base.

For adjustable bases, the body must also have the identical dimensions as

the standard base. For adjustable extensions, the top flange and body of

the extension must also be compatible with light fixtures and with existing

parts in the ground without field modifications to certified parts. The

adjustable top flange and supporting wall may mate into the base body

either externally or internally of the base supporting wall.

If the adjustable base is designed for installation in earth (no embedment

support required), the base must be load tested fully extended in free

space.

If the base requires portland cement concrete (PCC) embedment to meet

the load requirements, it may be tested as directed by the testing

laboratory with supporting PCC embedment to simulate an actual

installation. The manufacturer must indicate by the suffix “PCC” to the

catalog number that the base does not meet the load requirements of Type

L-867, unless the top base flange is embedded and supported by PCC.

The light bases must be dimensioned per Figure 2 with regard to light

fixture interface and critical dimensions.

3.2.1.5 Bolts.

Bolts suitable for use in threaded holes, as shown in Figures 1 and 2, must be

supplied with each base and extension assembly. The bolts must conform to

the dimensions specified in the notes in Figures 1, 2, and 3 and must be fully

AC 150/5345-42H 11/06/2015

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threaded and fabricated from 18-8 stainless steel. Coated steel fasteners per

EB 83 may also be used.

3.2.2 Type L-867 Class IIA and Class IIB Bases and Extensions.

Type L-867 bases and extensions, Class IIA and IIB, must be fabricated from suitable

materials and dimensioned to produce units meeting the appropriate testing requirements

per paragraph 4.2.

All bases and extensions (excluding spacers and covers) must be labeled using a

suitable long lasting contrasting color ink stamp with either the letter A or B to

indicate the Class suffix under which the certification has been obtained.

The stamp must be a minimum of one inch (25.4 mm) in height and placed on the

exterior and interior walls of the light base, no more than 6 inches (152 mm)

below the base flange.

All components described in this paragraph must be manufactured such that their use

does not require existing light bases, extensions, or any existing components installed in

the ground to be cut or modified in any manner.

3.2.2.1 Flange.

The flange must be fabricated from suitable materials and must meet the same

critical lighting fixture interface dimensions specified for Class I in Figure 1.

Flange thickness and material should be sufficient to pass the load test

specified in paragraph 4.1.1. The flange must be continuously attached to the

body to provide a watertight seal.

3.2.2.2 Body.

The body, sides, and bottom may be fabricated from one or more pieces. The

sides and bottom must be fabricated from suitable materials sufficient to pass

the load test described in paragraph 4.2.1. Two conduit entrances must be

installed near the bottom of the base. The location and size, as shown in

Figure 2, must be considered standard. However, the location, number, type,

and size may be altered to meet project requirements. Any sharp edges

formed on the inside of the body must be removed to prevent cutting or

chafing of the cable insulation. The length of the body section as shown in

Figure 2 must be considered standard, but the length may be varied to meet

special conditions.

3.2.2.3 Extensions.

The dimensions of the extensions and spacer rings must be per Figure 3.

Extensions must be fabricated of the same materials and dimensions specified

in paragraphs 3.2.2.1 and 3.2.2.2. Extensions must be ordered to length with a

minimum length of l-3/4 inches (44.5 mm) and a tolerance of ±l/16 inch (1.5

mm). Flat spacer rings are utilized for height adjustments from l/16 inch (1.5

mm) through l-11/16 inches (42.86 mm) in l/16 inch (1.5 mm) increments.

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3.2.2.4 Adjustable Height Type L-867 Class IIA and Class IIB Bases and

Extensions.

Adjustable height Type L-867 bases and extensions must have a provision

for adjusting the height of the top flange. Various methods of providing

height adjustment are possible (including proprietary stainless steel

adjustable threaded extensions).

The top flange must have the identical dimensions as the top flange of the

standard base.


the standard base.

For adjustable extensions, the top flange and body of the extension must

also be compatible with lighting fixtures and with existing parts in the

ground without field modifications to certified parts.

The adjustable top flange and supporting wall may mate into the base

body either externally or internally of the base supporting wall.

If the adjustable base is designed for installation in earth (no embedment

support required) the base must be load tested fully extended in free space.

If the base requires PCC embedment in order to meet the loading

requirements, it may be tested with supporting PCC embedment to

simulate actual installation as directed by the testing laboratory.

The manufacturer must indicate by the suffix “PCC” to the catalog

number that the base does not meet the load requirements of Type L-867

unless the top base flange is embedded and supported by PCC.

The light bases must be dimensioned per Figure 2 with regard to fixture

light interface and critical dimensions.

3.2.2.5 Bolts.

Bolts suitable for use in threaded holes as shown in Figures 1, 2, and 3 must

be supplied with each base and extension assembly. The bolts must be per the

dimensions specified in the notes in Figures 1, 2, and 3, and must be fully

threaded (tap bolt) and fabricated from 18-8 stainless steel. Coated steel

fasteners per EB 83 may also be used.

3.2.3 Type L-867 Accessories.

Various accessories are necessary to facilitate construction involving Type

L-867 bases or to make corrections or adjustments to Type L-867 bases.

These accessories are detailed in Figure 4.

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3.2.3.1 Type L-894 Elevated Light Covers.

An elevated light cover is used to mount the elevated light fixture to a Type L-

867 light base.

The L-894 elevated light cover must have a diameter and bolt-hole circle

that corresponds to one of the L-867 light base sizes listed in this AC.

The elevated light cover must be designed to receive the frangible device

provided; typically, this is a straight female thread.

The elevated light cover must not be higher than 0.63 inches (16 mm),

measured from the top of the light base plate bolt circle.

3.2.3.1.1 L-894 Elevated Light Cover Thread Sizes.

Thread sizes for elevated light covers are specified by the light fixture

manufacturer. For example, typical thread sizes are: 1-1/2 in. X 12 Unified

National Fine (UNF) and 2-in. National Pipe Straight (NPS). The depth of

threads must be no more than 0.88 in. (22.35 mm).

3.2.3.1.2 Type L-894 Elevated Light Cover Gasket.

A neoprene gasket (or equivalent) must be provided with the cover plate to

form a watertight seal between the cover plate and the L-867 light base. The

gasket must have a nominal thickness of 1/8 inch (3 mm) and fit the bolt circle

of the L-867 light base flange.

3.2.3.1.3 L-894 Receptacle Leads.

The mounting system for an elevated light cover must firmly position the

isolating transformer receptacle (typically an L-823, Class A, Type II, Class 8

receptacle – see AC 150/5345-26, FAA Specification for L-823 Plug and

Receptacle Cable Connectors) so its mating face is at the yield point and so it

will not be dislodged by separation from the plug. Drainage must be provided

below the yield point so that no water builds up above the mating surface of

the connector.

3.2.3.1.4 L-894 Elevated Light Cover Load and Bending Moments.

When the elevated light cover is bolted to an L-867 light base, it must

withstand an evenly distributed static compressive load of 2,500 pounds (1134

kg) and a bending moment of 2,500 foot-pounds (3,390 N·m) for the L-804

and 700 foot-pounds (949 N·m) for all other applications without damage or

permanent deformation.

3.2.3.1.5 L-894 Elevated Light Cover Ground Connections.

Elevated light covers must furnish a ground lug or bolt to facilitate a ground

connection. The ground connection must accommodate a minimum of a #6

AWG stranded wire or ground braid. See AC 150/5340-30, Design and

Installation Details for Airport Visual Aids, current revision, for additional

information about grounds and ground connections.

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3.2.3.1.6 L-894 elevated Light Cover Color and Finish.

For non-optical surfaces, the exterior must be painted with one prime, one

body, and one finish coat of paint. The prime coat must be appropriate for the

particular metal being painted. The finish coat must match color FED-STD-

595, Appendix 4, Color Number 13538, DOT Highway Yellow, ANA506

unless otherwise specified. Powder coatings may be used provided that the

performance of the coating is equivalent to or better than a painted coating.

3.2.3.2 L-895 Elevated Light Stake Mounting.

When not installed on a light base, the elevated light fixture must be mated

with a stake made of 2 x 2 x 3/16 inch (51 x 51 x 5 mm) L-type steel angle

stock. See AC 150/5340-30 (current revision), Figure 23, for a drawing of an

elevated light stake mounting.

3.2.3.2.1 L-895 Elevated Light Stake Fitting.

The stake must have a fitting attached at the top to receive the frangible

coupling.

3.2.3.2.2 L-895 Elevated Light Stake Receptacle Leads.

The mounting system for an elevated light mounting stake must position the

isolating transformer receptacle (typically an L-823, Class A, Type II, Class 8

receptacle – see AC 150/5345-26) so its mating face is at the yield point and

so it will not be dislodged by separation from the plug. Drainage must be

provided around the receptacle retainer to prevent water buildup around the

yield point.

3.2.3.2.3 L-895 Elevated Light Stake Standard Length.

The standard length of the stake and fitting is 30 inches (76 cm). Longer

stakes may be fabricated upon approval if there are special conditions for soil

or frost line.

3.2.3.2.4 L-895 Elevated Light Mounting Stake Ground Clamps.

A grounding clamp must be supplied by the manufacturer if specified by the

customer. The grounding clamp must accommodate a minimum of a #6

AWG copper conductor.

3.2.3.2.5 L-895 Elevated Light Mounting Stake Protective Coatings.

All protective coatings must be per paragraph 3.2.8.

3.2.3.2.6 L-895 Alternate Mounting Stakes.

Alternate staking methods may be used if it can be demonstrated that equal

support and durability are provided.

3.2.3.2.7 L-804 Light Fixtures.

L-804 light fixtures must not be stake mounted.

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3.2.4 Type L-868 Class IA and Class IB Bases and Extensions.

Type L-868, Class IA bases and extensions, must be fabricated from an appropriate metal

(see note below) and constructed in such a manner to meet the appropriate testing

requirements per paragraph 4.3. Class IB bases and extensions must be fabricated from

an appropriate metal (see note below) and constructed in such a manner as to meet the

appropriate testing requirements specified in paragraph 4.3.

Note: If a material other than ASTM A36 steel is used for a major load bearing structural

component, the material must meet the mechanical property yield and tensile values of

A36 steel. A material with yield and tensile stress values lower than the minimum

specified values of A36 steel may be used if the manufacturer can demonstrate

conformance to the requirements set forth in chapter 4 of this specification.

All bases and extensions (excluding spacers and covers) must be labeled using a suitable

long lasting contrasting color ink stamp with either the letter A or B to indicate the Class

suffix under which the certification has been obtained. The stamp must be a minimum 1

inch (25 mm) in height and placed on the exterior and interior wall of the base, no more

than 6 inches (152 mm) below the base flange.

All components described in this paragraph must be manufactured such that their use

does not require existing bases, extensions or any existing components installed in the

ground to be cut or modified in any manner. The modification of standard, certified

components renders them non-standard and voids their certification. The only exception

to this is the cutting of additional conduit holes during installation and the installation of

threaded inserts in the flange as these do not affect the structural integrity of a standard

unit.

3.2.4.1 Flange.

The dimensions of the flange must be as shown in Figure 5.

The flat surface of the flange must be installed at an angle of 90 degrees,

±0.125 degree, to the axis of the cylindrical body of the base. The flange

must be continuously attached to the body to provide a watertight seal.

The flange faces, outside and inside diameter, must be finished per ASME

B 46.1.

The bolt hole size and placement must be as shown in Figure 5.

The bolt hole may be integral to the flange or contained in metal insert

located in the flange.

A bolt installed in the flange bolt hole must be capable of accepting a bolt

torque test per paragraph 4.3.4. As part of the base testing, any insert or

remedial device used for correcting threads damaged while in service must

be tested in the base flange as part of the base in which it is intended for

service.

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3.2.4.2 Body.

The body section, sides and bottom, may be formed from one or more pieces.

One piece body sections must have an anchor ring (mid-ring) attached to

the body by a continuous weld applied to the upper side and lower side of

the ring per Figure 6.

The length of the one piece body section shown in Figure 6 must be

considered a standard, but the overall length may vary to meet specific

conditions.

Two 2-inch (51 mm) conduit entrances must be provided near the bottom

of the body. The location, number, and size of conduit entrances shown in

Figure 6 must be considered standard, but the size, location, and number

of connections may be varied to meet specific conditions. Any sharp

edges at the conduit entrances must be removed to prevent cutting or

chafing of the cable insulation.

When sectional bases are specified, the sections must be dimensioned per

Figure 7.

3.2.4.3 Extensions.

Extensions must be fabricated from the appropriate metal for either Class

IA or Class IB bases.

The dimensions of extensions must be per Figure 8.

The minimum extension length must be 2-1/4 inches (51 mm).

Flat spacer rings must be used for height corrections of l/16 inch (1.6

mm) to 2-3/16 inches (62 mm) in l/l6 inch (1.6 mm) increments. Flat

spacer ring dimensions are shown in Figure 8.

If specified, grooved spacer rings may be used for height corrections of

l/4 inch (3.2 mm) to 2-7/16 inches (62 mm) in l/16 inch (1.6 mm)

increments.

To avoid problems with bolt tension, only a maximum of three spacer

rings may be stacked together.

3.2.4.4 Adjustable Height Type L-868, Class IA and Class IB Bases and

Extensions.

Adjustable height Type L-868, Class IA and IB bases and extensions must

have a provision for adjusting the height of the top flange.

Various methods of providing height adjustment are possible (including

proprietary stainless steel adjustable threaded extensions).

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The top flange must have the identical dimensions as the top flange of the

standard base.


the standard base.

For adjustable extensions, the top flange and body of the extension must

also be compatible with light fixtures and with existing parts in the ground

without field modifications to certified parts.

The adjustable top flange and supporting wall may mate into the base

body either externally or internally of the base supporting wall.

3.2.4.5 Bolts.

Bolts suitable for use in the threaded holes per Figures 5, 6, and 7 must be

supplied with each spacer ring.

The bolts must be of sufficient length to provide a full thread connection

with the light base flange when the spacer ring is inserted between the

light fixture and the light base flange.

If bases or extensions are ordered without spacer rings, bolts conforming

to the dimensions specified in the notes in Figures 5, 6, and 7 must be

supplied.

All bolts must be fully threaded (also known as a tap bolt), fabricated from

18-8 stainless steel and supplied with two part stainless steel locking

washers.

Anti-seize material is recommended to be furnished and utilized by the

installing contractor when installing stainless steel bolts (Reference AC

150/5340-30).

Anti-seize material is not supplied by the light base manufacturer. No

antiseize material is required for coated fasters per EB 83.

Coated steel fasteners per EB 83 may also be used. All finished bolt sizes

must be the same as stainless steel bolts.

3.2.5 Type L-868 Accessories.

Various accessories are necessary to facilitate construction involving Type L-868 bases

or make corrections or adjustments to Type L-868 bases. These accessories are detailed

in Figure 9.

3.2.6 Grounding Lugs.

Ground connectors or straps must be supplied with each base.

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A metallic ground connector or strap must be welded to the interior and exterior

wall of each base before applying surface protection.

The details and location of the ground connectors are shown in Figure 6.

The location of the connector may be varied to meet specific conditions. A

bronze or copper ground connector should not be fastened to the ground

connector or strap until after the base surface protection is applied.

Note: Under no circumstances should an exothermic weld be used to attach a ground or

counterpoise connection to a galvanized light base because of potential heat damage to

the galvanized coating. Under field conditions, repairs to the zinc coating after an

exothermic weld are ineffective. If the galvanized coating is compromised, the corrosion

of exposed light base steel will accelerate.

3.2.7 Drains.

If specified, a drain should be provided in the bottom of the base prior to applying surface

protection. When not otherwise specified, the drain should be 3/4 inch (19 mm) in

diameter.

3.2.8 Protective Coating.

After fabrication all burrs and sharp edges must be removed.

All ferrous metal parts must be treated for corrosion protection.

Prior to tapping operations, all parts of Class I bases, extensions, and spacer rings

in excess of l/4 inch (6.35 mm) in thickness must be hot-dip galvanized per

ASTM A123/A123M applied per ASTM A385.

All parts of L-895 elevated light base stakes must be hot dip galvanized per

ASTM A123/A123M that is applied per ASTM A385. Other coatings may be

used if the same level of corrosion protection is demonstrated.

Flanges, covers, and rings must be wiped smooth to a flatness of ±0.010 inch

(0.254 mm).

Plates and rings l/4 inch (6.35 mm) or less in thickness, grooved extensions, and

grooved spacer rings when made of ferrous metal must be plated with zinc per the

requirements of ASTM B633, Type II, Class I or hot dip galvanized per ASTM

A123/A123M.

Tapped holes for conduit must be protected with a polyurethane varnish or

equivalent.

A zinc dust primer meeting per MIL-PRF-26915 is permitted for touchup.

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The area covered by zinc dust primer must not exceed 10 percent of the total

treated area.

Any cast iron may be coated with a minimum of 2.0 mils of oxyplast powder in

lieu of galvanizing.

Class IA base extensions and spacer rings must utilize surface protection that

meets testing requirements per paragraph 4.4.

Note: If a protective plastic coating is used over a galvanized coating or metal plating,

do not cover the light base threaded holes with the coating.

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Chapter 4. QUALITY ASSURANCE PROVISIONS

Equipment produced under this specification may be eligible for funding for installation at

airports under Federal grant assistance programs for airports.

To be eligible for installation under Federal grant assistance programs, manufacturers of

the types of equipment specified herein are required to certify or furnish proof to the

airport sponsor, or the sponsor’s representative, that the equipment is certified by an

FAA-approved Third Party Certification Body to meet the following test specimen, and

production provisions established in paragraphs 4.1, 4.2 and 4.3 Certification Testing.

Certification testing is intended to ensure that the materials and fabrication methods are

adequate to provide acceptable in-service performance of light bases, transformer

housings, junction boxes, accessories, elevated light covers and stakes for elevated light

mounting.

Certification testing is required for each type, class, and size of light base, transformer

housing, junction box, accessory, elevated light covers and stakes for elevated light

mounting produced.

The third party certification body must make a record (for up to seven years beyond the

life of the certification) of the exact material and fabrication process used for the

prototype submitted for certification.

Any change in the product material or fabrication process requires the certification of the

resultant product as a new product initially submitted for certification.

After testing and qualification are complete, the prototype accepted for qualification must

function as the dimensional and workmanship model for all subsequent production units.

4.1 Type L-867 Class IA and Class IB Certification Testing.

Type L-867, Class IA and Class IB bases and extensions fabricated in accordance with

the materials and dimensions specified herein must be capable of passing the following

tests:

4.1.1 Type L-867 Class IA and Class IB Load Test.

Sample bases and extensions must be subject to the load test described below.

The base and cover assembly or assemblies including spacer rings, extensions,

and multi-section bodies must be bolted together and placed on a flat steel plate

mounted in a standard testing machine. The light base manufacturer will specify

the correct torque and bolts to be employed for proper assemby.

The test section must be a unit in height deemed to be the maximum height to be

furnished by the manufacturer with four 2 inch (51 mm) conduit entrances located

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in the body section, located at 90 degree increments, 2-l/2 inches (64 mm) from

the bottom of the base.

A load must be applied to the top part of the base through a block of rubber 1.50

inches (38 mm) (± 0.25 inches (6.35 mm)) thick, with a diameter equal to the

cover plate, and having a durometer hardness of 55 to 70. A load of 250 psi

(1724 kPa) must be applied uniformly over the area of the rubber block at a rate

not to exceed 10,000 pounds (4536 kg) per minute.

The light base or any of its components will be considered unsatisfactory if there

is any permanent deformation or cracking of material or coating.

The test will be repeated three times.

After each loading, the bolts must be checked for loss of tension.

The bolts must be torqued to the manufacturer’s recommended service torque

after the first two loadings.

The base and/or assembly will be considered unsatisfactory if there is any loss of

torque in the bolts or permanent deformation of the flange or coating after the

third loading.

Load testing is to be performed on free standing units.

4.1.1.1 Type L-867 Class IA and Class IB Load Test, Adjustable Height Bases

and Extensions.

If the adjustable base or extension is designed for installation in earth (no

embedment support required), the base or extension must be tested fully

extended in free space and must be subject to the load test in paragraph 4.1.1.

If the base or extension requires PCC embedment to meet the loading

requirements, it must be tested to the requirements in paragraph 4.1.1 with

supporting PCC embedment to simulate actual installation as directed by the

testing laboratory.

4.1.2 Type L-867 Class IA and Class IB Weld Integrity Test.

This test must be performed after each assembly has undergone the load test described in

paragraph 4.1.1.

An internal air or hydraulic pressure of 12 psi, ±2 psi, (83 kPa, ±14 kPa) must be

maintained within the assembly using pressure fittings.

The conduit entrances must include a sample of the conduit interfaces (hub,

grommet etc.) that are offered by the manufacturer for interfacing to the conduit.

The conduit entrances must include conduit stubs suitably plugged during the

conducting of the test.

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A high foam soap or detergent solution of low surface tension must be brushed on

welds, seams, and joints to detect leakage. Alternatively, the assembly may be

submerged in a tank of water while pressurized to detect any air leakage.

The assembly will be considered unsatisfactory if leakage is evident. The conduit

entrances must be placed at least 24 inches (0.6 m) below the water surface. Any

leakage of water into the assembly will be cause for rejection.

Note: This test is also to be performed on bases designed to be field height adjustable,

but the extension does not have to be in place.

4.1.3 Type L-867 Class IA and Class IB Dimensional Tests.

Specimens must be measured for conformance to the dimensions specified in Figures 1,

2, 3, and 4. Should any new product be introduced that does not exactly conform to the

fixed products shown, the applicable dimensions necessary to ensure compatibility with

certified light fixtures and bases must be applied.

4.1.4 Type L-867 Class IA and Class IB Protective Coating Thickness Test.

When utilized, the thickness of protective coatings must equal or exceed those specified

herein. The weight of hot-dip galvanizing must be tested according to the method

described in ASTM A 153. Zinc plating thickness must be tested by a method described

in ASTM B 633.

4.1.5 Type L-867 Class IA and Class IB Visual Inspection.

Each unit must be visually inspected for quality of workmanship and materials. The

specified Class marking must be inspected for correctness. Particular attention must be

given to smoothness and continuity of welds and seams, flatness and smoothness of the

flange surface, complete and uniform application of the protective coating, freedom from

excess zinc when applicable, and absence of burrs, sharp edges, cracks, voids,

penetrations or any other imperfection that could potentially affect the structural integrity

or performance of the product.

4.1.6 Type L-867 Class IB Potassium Acetate Test.

Light bases and extensions certified to Type L-867 Class IB requirements must be

subjected to testing to determine if they are resistant to corrosion or deterioration caused

by deicing fluids containing potassium acetate.

The test consists of selecting a test light base and filling it half full with a

potassium acetate deicing fluid composed of 50 percent potassium acetate and 50

percent water, by weight.

The test light base will have conduit connecting devices identical to that to be

furnished with the base with conduit stubs plugged and the top of the base must

be covered with an appropriate blank cover and gasket.

The test light base must remain for 21 days at an elevated temperature of 194°F

(90ºC).

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After the test period, the light base and spacer ring must be inspected. Any

evidence of corrosion, leakage, or deterioration (peeling delamination, blistering)

of coatings must be cause for rejection.

4.2 Type L-867 Class IIA and Class IIB Certification Testing.

Type L-867, Class IIA and Class IIB bases and extensions fabricated from materials to

dimensions as specified herein must be capable of passing the following tests.

4.2.1 Type L-867 Class IIA and Class IIB Load Test.

Sample bases and extensions must be subjected to the load test described in paragraph

4.1.1.

4.2.2 Type L-867 Class IIA and Class IIB Weld Integrity Test.

Sample bases and extensions must be subjected to the leakage test described in paragraph

4.1.2.



4.2.3 Type L-867 Class IIA and Class IIB Temperature Shock Test.

Temperature shock test requirements apply only to Class II, non-metallic, Type L-867

bases.

A temperature shock test must be conducted on a completed non-metallic base

assembly.

The test must be performed according to MIL-STD-810E, Method No. 503.2,

Paragraph II, Procedure I.

The high test temperature must be conducted at +130ºF (+54ºC) and the low test

temperature must be conducted at -65ºF (-54ºC).

This test must be conducted on the assembly after the load test described in

paragraph 4.1.1 has been concluded.

Any cracking or joint separation of the materials making up the base assembly

will be cause for rejection.

4.2.4 Type L-867 Class IIA and Class IIB Dimensional Tests.

Specimens must be measured for conformance to the dimensions specified in Figures 1,

2, 3, and 4, as applicable.

Mounting flange and base wall thicknesses must be measured and must be equal

to or greater than those required to pass the load test and torque test described in

paragraph 4.1.1.

11/06/2015 AC 150/5345-42H

25

Should any new product be introduced that does not exactly conform to the fixed

products shown, the applicable dimensions necessary to ensure compatibility with

certified light fixtures and bases must be applied.

4.2.5 Type L-867 Class IIA and Class IIB Protective Coating Thickness Test.

For components of the base or assembly requiring protective coatings, the thickness of

protective coatings must be tested in accordance with paragraph 4.1.4.

4.2.6 Type L-867 Class IIA and Class IIB Visual Inspection.

Bases must be visually inspected in accordance with paragraph 4.1.5.

4.2.7 Type L-867 Class IIB Potassium Acetate Test.

Light bases and extensions certified to Type L-867 Class IIB requirements must be

subjected to testing to determine if they are resistant to corrosion caused by deicing fluids

containing potassium acetate. The test must be conducted in accordance with paragraph

4.1.6.

4.2.8 Type L-894 Elevated Light Cover Load and Bending Moment Test.

A static load and bending moment test must be performed on an elevated light cover

mated to an L-867 light base (or equivalent).

4.2.8.1 Type L-894 Test Load Application Method.

The test load must be applied to the top part of the test assembly through a

rubber block of a diameter at least 1 inch (25.4 mm) less than the outside

diameter of the light assembly. The rubber block must be 1.5 inches thick, ±

0.25 in. thick and have a “Shore A” hardness of 55-70.

4.2.8.2 Type L-894 Test Load Application.

For elevated light covers, the load must be 2,500 pounds (1,134 kg). The load

must be applied uniformly over the rubber block in paragraph 4.2.8.1.1 at a

rate not greater than 10,000 pounds (4,536 kg) per minute. Full load must be

applied for at least 1 minute.

4.2.8.3 Type L-894 Bending Moment.

When the elevated light cover is bolted to an L-867 light base, it must

withstand a bending moment of 2,500 foot pounds (3,390 N·m) for the L-804

and 700 foot pounds (949 N·m) for all other applications.

4.2.8.4 Type L-894 Test Results.

The test is considered as unsatifactory if there any permanent deformation,

cracking of material or finish, breaking, or damage to the light, and/or

elevated light cover.

4.2.9 Type L-895 Elevated Light Mounting Stake Dimensional Tests.

Verify that the dimensions of the mounting stake are per paragraphs 3.2.3.2 and 3.2.3.2.3.

4.2.9.1 Type L-895 Elevated Light Mounting Stake Protective Coatings.

Verify that all protective coatings are per paragraph 3.2.8.

AC 150/5345-42H 11/06/2015

26

4.3 Type L-868 Class IA and Class IB Certification Testing.

Type L-868, Class I bases and extensions fabricated with the materials and dimensions

specified herein must pass the following tests.

4.3.1 Type L-868 Class IA and Class IB Load Test.

Sample bases and extensions must be subject to the load test described in paragraph 4.1.1

with the following exception. A load of 450 psi (3,103 kPa) must be applied uniformly

over the area of the rubber block at a rate not to exceed 10,000 pounds (4,536 kg) per

minute. The test section must be a unit in height deemed to be the maximum height, to

be furnished by the manufacturer. For 8 inch (203 mm) Type L-868, one inch (25 mm)

conduit entrances must be used.

4.3.2 Type L-868 Class IA and Class IB Fatigue Test.

If a material other than ASTM A36 steel is used for a major load-bearing structural

component, the material must have a fatigue limit or endurance limit no less than 27 ksi

(186 MPa). Specimens from the proposed material must be able to withstand a minimum

of 5 × 107 cycles at 27 ksi (186 MPa) by a standard R.R. Moore rotating beam fatigue test

using polished specimens. No less than three tests must be conducted to validate the

material’s fatigue properties.

4.3.3 Type L-868 Class IA and Class IB Impact Test.

If a material other than ASTM A36 steel is used for a major load-bearing structural

component, the material must have an impact toughness equal to or greater than 15 ft-lb

(20 J) at 20°F (-7°C), per the Charpy V-notch Test specified in ASTM E23. No less than

three tests must be conducted to validate the material’s impact properties.

4.3.4 Type L-868 Class IA and Class IB Flange Bolt Torque Test.

Flanges must be tested by inserting dry 3/8 inch X 16 threads per inch 18-8 stainless steel

tap (fully threaded) bolts used to mount a typical in-pavement light fixture in all 6 bolt

holes and torqueing all bolts to failure.

Note: Check with a light fixture manufacturer for a typical bolt length used to mount in-

pavement light fixtures.

Any cracking or permanent deformation of the flange material will be cause for rejection.

Any rotation or distortion of installed remedial devices or replaceable inserts will also be

cause for rejection.

4.3.5 Type L-868 Class IA and Class IB Weld Integrity Test.

Sample bases and extensions must be subjected to the leakage test described in paragraph

4.1.2.



4.3.6 Type L-868 Class IA and Class IB Dimensional Tests.

Specimens must be measured for conformance to the dimensions per Figures 5 through 9.

Should any new product be introduced that does not exactly conform to the certified

11/06/2015 AC 150/5345-42H

27

products per this AC, the applicable dimensions necessary to ensure compatibility with

currently certified light fixtures and bases must be applied.

4.3.7 Type L-868 Class IA and Class IB Protective Coating Thickness Test.

For components of the base or assembly requiring protective coatings, the thickness of

protective coatings must be tested in accordance with paragraph 4.1.4.

4.3.8 Type L-868 Class IA and Class IB Visual Inspection.

Specimens must be subject to visual inspection as described in paragraph 4.1.5.

4.3.9 Type L-868 Class IB Potassium Acetate Test.

Bases and Extensions must be subjected to testing to determine if they are resistant to

corrosion caused by deicing fluids containing potassium acetate. The test must be

conducted in accordance with paragraph 4.1.6.

4.3.10 Type L-868 Torque Test for Adjustable Height Bases and Extensions.

Two different torque tests are specified depending on the intended application for Class

IA and IB bases.

4.3.10.1 Base Anchored Into the Surrounding Pavement.

The torque test must be performed on a specimen properly assembled and

constructed so as to closely simulate actual installation in a pavement.

Prior to test, reference “tick” marks must be made on the mounting flange

and surrounding pavement material.

A torque of 100,000 in-lbs (11,300 Nm) must be applied perpendicular to

the vertical axis of the container through a steel cover plate. The

maximum torque must be achieved within 60 seconds of the start of test.

The torque load must be applied three times.

Upon completion of the third torque loading, the reference “tick” marks

will be measured to determine if the support ring has been displaced in

azimuth. An azimuth displacement of 0.25 degree or greater must be

cause for rejection.

4.3.10.2 Base Anchored into Embedment Material.

After completion of load testing, specimens must be subjected to torque

testing as described in paragraph 4.3.10.1 to ensure adequate material

thicknesses, attachment, and assembly techniques. An azimuth displacement

of 0.25 degree or greater must be cause for rejection. Separation of the flange

or bottom of the container from the body sidewalls, as well as buckling and/or

permanent deformation of the body sidewalls must also be cause for rejection.

AC 150/5345-42H 11/06/2015

28

4.4 Production Testing.

4.4.1 Lot Size.

The lot size must be equal to the daily production rate.

4.4.2 Sample Size and Acceptance Criteria.

Production testing must be based on the procedures given in ANSI/ASQ Z1.4. Sample

size and acceptance criteria must be based on Table 1 (Sample Size Code Letters),

General Inspection Level I, Table II-A (Single Sampling Plans for Normal Inspection),

and an Acceptable Quality Level (AQL) of 2.5. Note that normal inspection may be

switched to reduced inspection provided the conditions set forth in ANSI/ASQ Z1.4 are

met.

4.4.3 Retesting.

If the lot is rejected, the remainder of the lot may be tested and inspected on an individual

basis. As an alternative to individual testing and inspection, the remainder of the lot may

be tested using criteria in ANSI/ASQ Z1.4 for multiple sampling. Table IVB, Multiple

Sampling Plans for Tightened Inspection, using the appropriate sample size and an AQL

of 2.5, must be used. Should the lot fail under the multiple sampling plan criteria, all

units must be inspected and tested individually and repaired as necessary. Any samples

that fail under any of the above criteria must be repaired prior to shipment.

4.4.4 Type L-867, Class IA and Class IB.

4.4.4.1 Dimensional Tests.

Random samples from each lot must be subjected to dimensional tests as

described in paragraph 4.1.3.

4.4.4.2 Visual Inspection.

Random samples from each lot must be subjected to visual inspection as

described in paragraph 4.1.5.

4.4.4.3 Weld Integrity Test.

Random samples from each lot must be subjected to the leakage test described

in paragraph 4.1.2, except that load testing of production samples is not

required.

4.4.5 Type L-867 Class IIA and Class IIB.

4.4.5.1 Dimensional Tests.

Random samples from each lot must be tested in accordance with paragraph

4.2.4.


Random samples from each lot must be visually inspected in accordance with

paragraph 4.1.5.

11/06/2015 AC 150/5345-42H

29




required.

4.4.6 Type L-868 Class IA and Class IB.

4.4.6.1 Dimensional Test.

Random samples from each lot must be tested for conformance to the

dimensional test described in paragraph 4.3.6.


Random samples from each lot must be inspected for conformance to the

requirements in paragraph 4.3.8.




required.

AC 150/5345-42H 11/06/2015

30


11/06/2015 AC 150/5345-42H

31

Chapter 5. PREPARATION FOR DELIVERY.

5.1 Packing.

Equipment must be carefully packaged for shipment and delivery to avoid damage and/or

corrosion. Protective covers must be installed on all bases. (See paragraph 3.1.3.5.3.)

5.2 Marking.

Equipment must be marked for shipment with the consignee’s name and address, and

other pertinent information as needed by the installer. Marking must include the

following statement, “Installer: These products have been packed and shipped per FAA

recommendations. Products are to be handled carefully so no damage to the structure or

finish will occur during the installation process.”

AC 150/5345-42H 11/06/2015

32

Figure 1. Flange, Type L-867, Class IA, Class IB, Class IIA, Class IIB

Drill

& T

ap

3/8

in. (9

.53

mm

)

16 N

C (

nm

eq)

Sp

aced,

E

C B D

D,

Outs

ide D

ia

Tole

rances, D

B,

Bolt C

ircle

Tole

rances, B

C, In

sid

e D

ia

Tole

rances, C

E,

Ch

ord

Tole

rances, E

Note

: A

ll D

imensio

ns a

re s

how

n in inch

es,

To c

onvert

fro

m in. to

mm

multip

ly

by 2

5.4

.

nm

eq m

eans n

o m

etr

ic e

quiv

ale

nt

13

.50

0

+0.1

00

-0.0

00

10

.25

0

9.2

50

+0.0

60

-0.0

00

5.1

25

±0

.00

5

±0

.01

0

17

.37

5

+0.1

00

-0.0

00

14

.25

0

±0

.01

0

12

.37

5

+0.0

60

-0.0

00

7.1

25

±0

.00

5

Nom

inal D

iam

ete

r1

21

6

DB

Siz

es

6 T

hru

Hole

s E

qually

±0

.00

5

11

.12

5

-0.0

00

+0.0

60

20

.00

0

±0

.01

0

21

.50

0

-0.0

00

+0.1

00

24

.00

0

24

E

0.3

75

in

. m

inim

um

. F

or

Cla

ss II b

ase

dim

ensio

n is m

inim

um

and e

xact

dim

ensio

n is d

ep

endent

on that re

quir

ed

to m

eet

the loadin

g r

equir

em

ent.

11/06/2015 AC 150/5345-42H

33

Figure 2. Body, Type L-867, Class IA, Class IB, Class IIA, Class IIB

24 in (610 mm)

A

2 1

/2 in

(6

4 m

m)

or

as s

pe

cifie

d

No

min

al D

iam

ete

r

A,

Insid

e D

ia

12

16

Siz

es

Fla

ng

e A

tta

ch

ed

To

Sid

ew

alls

With

Co

ntin

uo

us

AA

A

12

.25

0±0

.37

5

16

.25

0±0

.37

5T

ole

ran

ce

s,

A

AA

A,

Ma

x B

ott

om

Dia

13

.00

01

7.3

75

Wa

tert

igh

t W

eld

0.1

09

in

. (2

.77

mm

)M

inim

um

Min

imu

m0

.10

9 in

. (2

.77

mm

)

0.3

75

in

. (9

.53

mm

) M

inim

um

6 in. (150 mm)

Typical

NO

TE

S:

1.

Co

nd

uit E

ntr

an

ce

s A

re T

o B

e M

ad

eT

he

Bo

lt H

ole

Axis

Of

Th

e F

lan

ge

With

An

An

gu

lar

To

lera

nce

of

±1

°.

Su

pp

ly S

ix 1

8-8

Sta

inle

ss S

tee

l (o

r co

ate

d s

tee

l b

olts

pe

r E

B #

83

) H

ex H

ea

d 3

/8 in

(9

.53

mm

) 1

6 U

NC

-2

(nm

eq

) F

ully

Th

rea

de

d B

olts 1

in

. (2

5 m

m)

Lo

ng

W

ith

Ea

ch

Co

nta

ine

r.

3.

Dim

en

sio

ns S

ho

wn

Are

In

In

ch

es

To

Co

nve

rt F

rom

in

. to

mm

Mu

ltip

lyB

y 2

5.4

. n

me

q m

ea

ns n

o m

etr

ice

q1

uiv

ale

nt.

2.

22

.50

0

24

24

.00

0

±0

.37

5

Bo

tto

m a

tta

ch

ed

to

Sid

ew

alls

with

co

ntin

uo

us w

ate

rtig

ht

we

ld.

Fo

r C

lass I

I b

ase

th

e w

all

thic

kn

ess m

ay b

e g

rea

ter

if

req

uire

d t

o m

ee

t th

e b

ase

loa

din

g r

eq

uire

me

nts

.

Fo

r C

lass I

IA o

r II

B b

ase

th

e f

lan

ge

th

ickn

ess m

ay b

e

gre

ate

r if r

eq

uire

d t

o m

ee

t th

e b

ase

lo

ad

ing

req

uire

me

nts

.

Th

e f

lat

su

rfa

ce

of

the

fla

ng

e

sh

all

be

in

sta

lled

at

90

°±0

.25

°to

the

axis

of

the

cylin

dri

ca

l b

od

y.

Op

tio

na

l D

rain

ho

le o

r h

ub

with

siz

e a

nd

co

nfig

ura

tio

n t

o b

e s

pe

cifie

d b

y t

he

airp

ort

en

gin

ee

r. H

ole

sh

ou

ld n

ot

exce

ed

2 in

ch

es

in d

iam

ete

r. R

ef

AC

15

0/5

34

0-3

0

To

lera

nce

s,

AA

A

±0

.10

0

±

0.1

00

±

0.1

00

Gro

un

d S

tra

p

for

Bro

nze

or

Co

pp

er

Gro

un

d

Co

nn

ecto

r

AC 150/5345-42H 11/06/2015

34

Figure 3. Extensions, Type L-867, Class IA, Class IB, Class IIA, Class IIB

Exte

nsio

nS

pacer

Rin

g

Heig

ht

to O

rder

1-3

/4 inch (

44 m

m)

min

imum

Tole

ran

ce ±

1/1

6 in.

(±1.5

mm

)

Drill

& T

ap

3/8

in (

9.5

3 m

m)

16 N

C (

nm

eq)

6 T

hru

Hole

sE

qu

ally

Sp

aced.

Tap a

fter

Drill

7/1

6 in

(11

.1 m

m)

6 T

hru

Hole

s E

qua

llyS

paced

1/1

6 in

(1.5

mm

)

to

1 1

1/1

6 in (

43 m

m)

C B D

C B D

A

7/1

6 in

(11

.1 m

m)

6 T

hru

Hole

sE

qu

ally

Sp

aced

Siz

es

EE

Top a

nd

Botto

m A

tta

ched to

applic

atio

n o

fp

rote

ctive

coating

0.1

09 in (

2.7

7 m

m)

min

. C

lass 1

NO

TE

S:

1. H

ole

s I

n T

op A

nd B

otto

m O

f E

xte

nsio

ns S

hall

Be

Alig

ned.

2. S

upply

6 S

tain

less S

teel (o

r coate

d s

teel bolts p

er

EB

#83

) 18-8

Hex

Head

3/8

in.

(9.5

3 m

m)

16

UN

C (

nm

eq)

Bolts W

ith E

ach

Exte

nsio

n

Suff

icie

ntly L

ong

To P

rovid

e M

inim

um

1/2

in. (1

3 m

m)

Thre

ad E

ng

age

ment

With

Ba

se C

on

tain

er.

Sup

ply

6 S

tain

less S

teel (o

r coate

d s

teel bolts p

er

EB

#8

3)

18

-8 H

ex

head

3/8

in. (9

.53M

M)

16 U

NC

(nm

eq)

Bo

lts W

ith E

ach

Exte

nsio

n S

uff

icie

ntly

Long

to

Pro

vid

e M

inim

um

1/2

in.

(13 m

m)

Thre

ad

En

gag

em

en

t W

ith

Exte

nsio

n T

op F

lange.

3. T

ab

ula

ted D

imensio

ns A

re I

n I

nches, T

o C

onvert

Fro

m in. to

mm

Multip

ly B

y 2

5.4

. n

meq m

eans n

om

etr

ic e

quiv

ale

nt.

Sid

ew

alls

With C

ontu

nous

Wate

rtig

ht

Co

nne

ction.

As r

eq'd

Cla

ss II

Fla

ng

e T

hic

kne

ss

Nom

inal D

iam

ete

r

D, O

uts

ide

Dia

Min

imum

B,

Bolt C

ircle

Tole

rance

s, B

C, In

sid

e D

iaT

ole

ran

ces, C

E, C

hord

Tole

rance

s, E

A, A

ctu

al D

iaT

ole

rance

s, A

B 12

13

.50

0

10

.25

0

9.2

50

5.1

25

12

.25

0

± 0

.010

± 0

.005

± 0

.375

+ 0

.06

0-

0.0

00

D 16

17

.37

5

14

.25

0

12

.37

5

7.1

25

16

.25

0

± 0

.010

± 0

.005

± 0

.375

+ 0

.06

0-

0.0

00

E 24

24

21

.50

0

20

.00

0

10

.75

0

22

.25

0

± 0

.010

± 0

.005

± 0

.375

+ 0

.06

0-

0.0

00

3/8

in

. (9

.5 m

m)

for

Cla

ss I

As R

eq

uired f

or

Cla

ss II

(Top

an

d B

ott

om

):

11/06/2015 AC 150/5345-42H

35

Figure 4. Accessories, Type L-867

ST

EE

L C

OV

ER

PLA

TE

EX

TE

RIO

R P

LY

WO

OD

CO

VE

R

Thru

Ho

les E

qually

Sp

aced.

Dri

ll S

ix 7

/16 in (

11.1

1 m

m)

t

D

Dri

ll S

ix 7

/16 in (

11.1

1 m

m)

Thru

Ho

les E

qually

Sp

aced.

B D

T

D, O

uts

ide D

iaT

ole

rances, D

B,

Bo

lt C

ircle

Dia

Tole

rances, B

T, T

hic

kness

t, T

hic

kness

Note

s:

Siz

es

BD

13.5

00

+0.1

00

-0.0

00

17.3

75

+0.1

00

-0.0

00

10.2

50

±0.0

10

14.2

50

±0.0

10

0.3

75

0.3

75

1/2

1/2

1.

Supply

18-8

Sta

inle

ss S

teel (o

r coate

d s

tee

l bolts p

er

EB

#83)

Hex H

ead 3

/8 (

9.5

3 m

m)

UN

C 1

6 (

nm

eq

) B

olts O

f S

uffic

ient Length

To P

rovid

e F

ull

Thre

ad E

ngage

ment

With F

lange.

2.

Dim

ensio

ns T

abula

ted A

bo

ve

Are

In I

nches. T

o C

onvert

F

rom

in. to

mm

, M

ultip

ly b

y 2

5.4

. nm

eq m

eans n

o m

etr

icequ

ivale

nt.

B

E

24.0

00

+0.1

00

-0.0

00

21.5

00

±0.0

10

0.5

00

1/2

AC 150/5345-42H 11/06/2015

36

Figure 5. Flange, Type L-868, Class IA, Class IB

C B A

Siz

es

AB

C

No

min

al D

iam

ete

r8

12

15

A,

Ou

tsid

e D

ia

To

lera

nce

s,

A

8.5

00

12

.50

01

5.5

00

+0

.05

0+

0.0

50

+0

.05

0

-0.0

00

-0.0

00

-0.0

00

B,

Bo

lt C

ircle

7.2

50

11

.25

01

4.2

50

±0

.01

0±0

.01

0±0

.01

0

C,

Insid

e D

ia6

.50

01

0.0

00

13

.00

0

To

lera

nce

s,

C+

0.0

15

+0

.01

5+

0.0

15

-0.0

00

-0.0

00

-0.0

00

No

te:

All

Dim

en

sio

ns a

re s

ho

wn

in

in

ch

es,

t

o c

on

ve

rt f

rom

in.

to m

m m

ultip

ly b

y 2

5.4

nm

eq

me

an

s n

o m

etr

ic e

qu

iva

len

t

0.7

50

in

(19

.1 m

m)

min

imu

m

De

tail

"A"

30

°

X

24

0°

60

°

Pro

vid

e3

/8 in

. (9

.53

mm

)1

6 U

NC

(n

me

q)

12

Th

ru H

ole

s E

qu

ally

Sp

ace

d,

Fo

r 8

in

. siz

eH

ole

s a

re L

oca

ted

at

60

°, 1

20

°,

24

0°

an

d 3

00

°.

Wh

en

Usin

g O

nly

Tw

o

Bo

lts t

he

12

0°

an

d 3

00

°

Lo

ca

tio

ns S

ha

ll b

e U

se

d.

30

°

12

0°

30

0°

To

lera

nce

s,

B

11/06/2015 AC 150/5345-42H

37

Figure 6. Body, Type L-868, Class IA, Class IB

24

in

(6

10

mm

)

0.1

09

in

. (2

.77

mm

)m

inim

um

No

min

al D

iam

ete

r

To

lera

nce

s,

A

Siz

es

4 in

. (1

00

mm

)

A

An

ch

or

Rin

g

Inn

er

Dia

= A

Ou

ter

Dia

= A

+ 1

.5 in

(38

mm

)

3/8

in

(9

.5 m

m)

Th

ick

We

lde

d T

op

an

d B

ott

om

812

15

A,

Ou

tsid

e D

ia8

.50

01

2.5

00

15

.50

0

+0

.05

0-0

.00

0+

0.0

50

-0.0

00

+0

.05

0

-0.0

00

AA

A

Ma

x B

ott

om

Dia

To

lera

nce

s, A

AA

9.5

00

13

.50

0

16

.50

0±0

.10

0±0

.10

0±0

.10

0

No

te:

Ta

bu

late

d D

ime

nsio

ns a

re s

ho

wn

in in

ch

es,

to

co

nve

rt f

rom

in

. to

mm

mu

ltip

ly b

y 2

5.4

.

n

me

q m

ea

ns n

o m

etr

ic e

qu

iva

len

t.

AA

A

Bo

tto

m A

tta

ch

ed

To

Sid

ew

alls

With

Co

ntin

uo

us W

ate

rtig

ht

We

ld

Fla

ng

e A

tta

ch

ed

To S

ide

wa

llsW

ith

Co

ntin

uo

us W

ate

rtig

ht

We

ld

2-1

/2 in

(6

4 m

m)

Or

As S

pe

cifie

dC

on

ne

ctio

ns L

oca

ted

On

X-X

Or

Y-Y

Axis

Of

Fla

ng

e A

s R

eq

uire

d

0.1

09

in

.(2

.77

mm

)M

inim

um

6 in. (150 mm)

Typical

Th

e f

lat

su

rfa

ce

of

the

fla

ng

e s

ha

ll b

e in

sta

lled

at

90

°±0

.25

°to

th

e a

xis

of

the

cylin

drica

l b

od

y.

Th

e f

lan

ge

su

rfa

ce

sh

all

be

fin

ish

ed

in a

cco

rda

nce

with

AN

SI

B 4

6.1

Fo

r S

ize

12

an

d 1

5.

12

in

.(3

05

mm

) fo

r

Siz

e 8

Dra

in h

ole

wh

en

sp

ecifie

d

Siz

e a

nd

co

nfig

ura

tio

n t

o b

e

sp

ecifie

d b

y t

he

airp

ort

de

sig

ne

r

(Ma

x 2

in

ch

)

Gro

un

dC

on

ne

ctio

n L

ug

AC 150/5345-42H 11/06/2015

38

Figure 7. Sectional Body, Type L-868, Class IA, Class IB

Heig

ht to

Ord

er

min

imum

Tole

ran

ce ±

1/1

6 in.

(±1.5

mm

)

0.7

50 in. (1

9.1

mm

)

0.1

09 in. m

in.

(2.7

7 m

m)

3/8

in. (9

.5 m

m)

min

.

Nom

inal D

iam

ete

r

AB

C 15

12

8

Siz

es

To Order

3/8

in

(10 m

m)

3/8

in

(10 m

m)

(2.7

7 m

m)

0.1

09 in. m

in.

0.1

09 in. m

in.

(2.7

7 m

m)

(10 m

m)

3/8

in

(2.7

7 m

m)

.109

To Order

4-1/2 in.(114 mm)minimum

Bo

ttom

Se

ction

Mid

dle

Section

To

p S

ection

CC

CC

BB

AA

A

CC

BB

AA

AC

CB

B

AA

A

AA

A

BB

A, A

ctu

al D

ia.

Tole

rances, A

8.5

00

12.5

00

15.5

00

±0.0

50

±0.0

50

±0.0

50

AA

A

Tole

rance

s, A

AA

9.5

00

13.5

00

16.5

00

±0.1

00

±0.1

00

±0.1

00

BB

, B

olt C

ircle

Tole

ran

ces, B

B

6.2

50

10.2

50

13.2

50

±0.0

10

±0.0

10

±0.0

10

CC

Tole

rances, C

C9.2

50

12.3

75

±0.0

15

±0.0

15

±0.0

15

A o

ute

r D

ia.

3/4

in (

19 m

m)

X 3

in (

76 m

m)

X 3

/16 in (

5 m

m)

ste

el anchor

weld

ed to

section s

ide

at 120 °

in

terv

als

2.2

5 in. (5

7 m

m)

BB

B

4 in. (100 mm)Minimum

Hole

s In B

ottom

Of M

iddle

Section A

reS

lots

7/1

6 in

(11 m

m)

Wid

e B

y

1-3

/4 in (

44 m

m)

Long A

ligned W

ith

BB

Dia

mete

r

5.2

50

NO

TE

S:

1. T

ops A

nd B

ottom

s A

ttached T

o S

idew

alls

With C

ontinuous

Wate

rtig

ht W

eld

s.

2. H

ole

s In T

ops A

nd B

ottom

s S

hall

Be A

ligned.

3. S

upply

Six

18-8

Sta

inle

ss S

teel (o

r coate

d s

teel bolts p

er

EB

#83)

Hex H

ead 3

/8 in (

9.5

3 m

m)

Fully

Thre

ade

d 1

6U

NC

-2 (

nm

eq)

Bolts,

4. D

ime

nsio

ns S

how

n A

re In Inch

es, T

o C

onvert

Fro

min

. to

mm

, M

ultip

ly B

y 2

5.4

. nm

eq m

eans n

o m

etr

icequiv

ale

nt.

CA

5. C

onduit C

onnections A

ligne

d W

ith B

olt H

ole

Axis

In B

ottom

Section.

125

125

Dri

ll &

Tap 1

2

Thru

Hole

s 3

/8 in

(9.5

3 m

m)

- 16 U

NC

(nm

eq).

Equally

Spaced

For

8 in. siz

eH

ole

s a

re L

ocate

dO

n Y

Axis

and

at 120°

and 3

20°

When U

sin

g O

nly

Tw

o

Bolts the 1

20°

and 3

20°

Loca

tions S

hall

be U

sed.

C, Insid

e D

ia.

10.0

00

13.0

00

6.5

00

7/8

in

min

.

BB

B, B

olt C

ircle

Tole

rance

s, B

BB

7.2

50

±0.0

10

11.2

50

±0.0

10

14.2

50

±0.0

10

A o

ute

r D

ia.

1.0

in (

25.4

mm

) Long W

ith E

ach M

ultip

le S

ection.

11/06/2015 AC 150/5345-42H

39

Figure 8. Extensions, Type L-868 Class IA, Class IB

Heig

ht to

Ord

er

min

imum

Tole

rance ±

1/1

6 in.

(±1.5

mm

)

Dri

ll &

Tap

3/8

in (

9.5

3 m

m)

16 N

C (

nm

eq)

Equ

ally

Spaced

Dri

ll 7/1

6 in

(11.1

mm

) 6 T

hru

Hole

s E

qually

Spaced

Top a

nd

Bo

ttom

Attached to

C B AA

E

7/1

6 in

.

(11.1

mm

)

6 T

hru

Hole

s

Eq

ua

lly S

pa

ce

d

C B A CC

0.7

50 in. (1

9.1

mm

)

0.1

09 in. m

in.

(2.7

7 m

m)

3/8

in. (9

.5 m

m)

min

.

.125

.125

.125

.125

Nom

inal D

iam

ete

r

A,

Ext.

Ou

tsid

e D

iaT

ole

rances, A

B, B

olt C

ircle

Tole

rances, B

C, In

sid

e D

iaT

ole

rances, C

CC

, In

sid

e D

iaT

ole

rances, C

C

AB

C 15

12

8

+0

.050

+0

.050

+0

.050

-0.0

00

-0.0

00

-0.0

00

14.2

50

11.2

50

7.2

50

±0.0

10

±0.0

10

±0.0

10

13.0

00

10.0

00

6.5

00

+0

.015

+0

.015

+0

.015

-0.0

00

-0.0

00

-0.0

00

6.5

00

10.0

012.3

75

±0.0

15

±0.0

15

±0.0

15

E, C

hord

Tole

rances, E

3.6

25

5.6

25

7.1

25

±0.0

05

±0.0

05

±0.0

05

Siz

es

2.2

5 in.

(57.5

mm

)

Sid

ew

alls

With C

ontinuous W

ate

rtig

ht

Weld

30°

X

60°

X 240°

12 T

hru

Hole

s

8.5

00

12.5

00

15.5

00

H, O

ptional

Alig

ne

d W

ith H

ole

s In T

op

EX

TE

NS

ION

SP

AC

ER

RIN

G

1/1

6 in.

(1.5

mm

) M

inim

um

For

Fla

t S

pacer

Rin

g1/4

in. (6

.35 m

m)

Min

imum

For

Gro

oved S

pacer

Rin

g

T

o2-3

/16 in. (5

5.6

mm

)

H,

Op

tion

al

H, G

roove D

iaT

ole

rances, H

6.1

45

±0.0

08

10.1

45

±0.0

08

13.1

45

±0.0

08

NO

TE

S:

1.

Su

pp

ly S

ix 1

8-8

Sta

inle

ss S

tee

l (o

r co

ate

d s

teel bolts p

er

EB

#83)

Hex H

ead

3/8

in. (9

.53 m

m)

Fully

Thre

ad

ed U

NC

16 (

nm

eq)

Bolts O

f A

Length

Required

For

Min

imum

1/2

in. (1

3 m

m)

Thre

ad

Engagem

ent In

Top F

lange O

f L-8

68

Conta

ine

r W

ith E

ach S

pa

cer

Rin

g.

For

Exte

nsio

ns S

upply

Tw

elv

e B

olts

Meeting T

he S

am

e R

equirem

ents

.

2. T

abula

ted

Dim

ensio

ns S

how

n A

bove A

re inches, T

o C

onvert

In.

to m

m, M

ultip

ly b

y 2

5.4

. nm

eq m

eans n

o m

etr

ic e

quiv

ale

nt.

"O"

Rin

g G

aske

t D

eta

il

(5.3

3 m

m)

0.2

10 in. dia

.

G

G, G

asket D

iaT

ole

rances, G

6.1

60

10.1

60

±0.0

08

13.1

60

±0.0

08

±0.0

08

300°

120°

17.3

75

+0

.050

-0.0

00

14.2

50

±0.0

10

13.1

45

±0.0

08

13.0

00

+0

.015

-0.0

00

±0.0

15

12.3

75

7.1

25

±0.0

05

13.1

60

±0.0

08

17.2

5

C*

3. T

yp

e C

* D

ime

nsio

ns a

re A

pplic

ab

le fo

r E

xte

nsio

ns o

r S

pacers

Used to R

ais

e

Curr

ently Insta

lled 1

7 Inch F

ixtu

res

AA

, E

xt.

Ou

tsid

e D

iaT

ole

rances, A

A

8.0

00

+0

.050

-0.0

00

12.0

00

+0

.050

-0.0

00

15.0

00

+0

.050

-0.0

00

17.3

75

+0

.050

-0.0

00

240°

and 3

00°.

When U

sin

g O

nly

Tw

o

Bolts the 1

20°

and 3

00°

Locations

Sha

ll be U

sed.

at 60°,

120°,

H

ole

s a

re L

ocate

dF

or

8 in. siz

e

30°

(see n

ote

3)

Gro

ove

De

tail

-0.0

05 in (

0.1

3 m

m)

+0.0

00 in (

0.0

0 m

m)

0.1

65 in (

4.1

9 m

m)

H0.2

40 in (

6.1

0 m

m)

7°

max

4.

Se

e p

ara

gra

ph

3.1

.3.1

fo

r p

rote

ctive d

am

dim

ensio

nal in

form

ation.

AC 150/5345-42H 11/06/2015

40

Figure 9. Accessories, Type L-868

XX

B A

Dri

ll S

ix 7

/16

in

(1

1.1

1 m

m)

Th

ru H

ole

s E

qu

ally

Spaced.

Co

un

terb

ore

Ea

ch H

ole

1-1

/8 X

1/4

in.

(28

.58

X 6

.35

mm

).N

o H

ole

s O

n X

-XA

xis

Of

8 in.

(25

4 m

m)

Siz

e.

T

ST

EE

L C

OV

ER

PLA

TE

EX

TE

RIO

R P

LY

WO

OD

CO

VE

R

(20

3 m

m)

Siz

e.

Axis

Of

8 in.

No

Ho

les O

n X

-X(2

8.5

8 X

6.3

5 m

m).

1-1

/8 X

1/4

in.

Co

un

terb

ore

Ea

ch H

ole

Th

ru H

ole

s E

qu

ally

Spaced.

Dri

ll S

ix 7

/16

in

(1

1.1

1 m

m)

B

XX

AA

A

t

Co

at

Ed

ge

& 1

in

. (2

5 m

m)

Min

imu

m E

ach

Sid

e W

ith

Pa

raff

in

MU

D C

OV

ER

Dri

ll 6

Th

ru H

ole

s7

/16

in

(1

1.1

mm

)

Dia

Eq

ua

lly S

paced

2 K

no

ckouts

1 in

(2

5 m

m)

Dia

Inn

er

Rin

g O

.D.

4.2

5 in

(108 m

m)

Mid

dle

Rin

g O

.D.

5.7

5 in (

146 m

m)

Ou

ter

Rin

g O

.D.

7.2

5 in

(184 m

m)

Rin

gs A

re 1

/4 ±

.06

25

in

(6

mm

± 1

.5m

m)

Wid

ea

nd

Ra

ise

d 1

/32

in

(0

.8 m

m)

Min

imum

1/8

in

(3

mm

)

Ce

nte

r P

oin

t In

dente

d

AA

A

B o

r B

B

2-1

/4 in

(5

7 m

m)

Apart

Ce

nte

red

On

X X

Axis

1-1

/8 in

(2

8.5

mm

) E

ither

Sid

e O

f Y

Y A

xis

X

Y Y

X

Fa

brica

te f

rom

Exte

rior

Gra

de

Ply

wo

od

, B

B/C

C,

or

oth

er

mate

rial

of

Eq

ua

l S

tre

ng

th a

nd

Weath

er

Re

sis

tance

8"

- 1

2"

Dri

ll &

Ta

p 4

Th

ru H

ole

s

3/8

in

(9

.53

mm

) 16 U

NC

(nm

eq

) E

qu

ally

Spaced

Dri

ll 6

Th

ru H

ole

s

7/1

6 (

11

.1 m

m)

Dia

Eq

ua

lly S

pa

ced W

ith

1 1

/8 in

(2

8.6

mm

),

1/2

in

(1

2.7

mm

) D

eep

Co

un

terb

ore

12

" -

15"

Dri

ll 6

Th

ru H

ole

s

7/1

6 (

11

.1 m

m)

Dia

Eq

ua

lly S

pa

ced W

ith

1 1

/8 in

(2

8.6

mm

),

5/1

6 in

(8

mm

) D

eep

Co

un

terb

ore

Dri

ll &

Tap 1

2

Th

ru H

ole

s

3/8

in

(9

.53

mm

)

16

UN

C (

nm

eq)

Eq

ua

lly S

paced

TY

PIC

AL

AD

AP

TE

R R

ING

S

NO

TE

S:

1. S

upply

Six

18-8

Sta

inle

ss S

teel (o

r coate

d s

teel bolts p

er

EB

#83)

Hex H

ead 3

/8 in (

9.5

3m

m)

Fully

Thre

aded

1

6 U

NC

(nm

eq)

Bolts O

f A

Length

Requir

ed F

or

Min

imum

1/2

in. (1

3 m

m)

Thre

aded E

ngagem

ent In

The T

op

O

f A

Type L

-868

2.

Dim

en

sio

ns T

ab

ula

ted

Ab

ove

Are

In

in

ch

es,

To

Co

nve

rt F

rom

in. to

mm

Multip

ly B

y 2

5.4

. N

ME

Q m

eans n

o m

etr

ic

eq

uiv

ale

nt.

3. S

teel C

over

Pla

te B

olt C

ircle

"B

" M

ay b

e "

BB

" D

imensio

n if R

equired.

4. *

C D

imensio

ns a

pply

Only

to A

dapte

r R

ings.

Se

e N

ote

3

BB

B

A C CC

T

BB

B

A C CC

AA

T

CBA

Min

imum

1/2

in

(1

3 m

m)

Th

ickn

ess T

o O

rder

Ø T

o O

rder

Co

rre

ctio

n H

ole

sC

ou

nte

rbo

re A

zim

uth

W

ith

5/8

in

(1

5.8

8 m

m)

7/1

6 in

(1

1.1

1 m

m)

Dia

Dri

ll 6

Th

ru H

ole

s

Ga

lva

niz

ing

Sp

ace

d,

Ta

p a

fter

6 T

hru

Ho

les E

qually

16

UN

C (

nm

eq)

3/8

in

. (9

.53

mm

)D

rill

& T

ap

AZ

IMU

TH

CO

RR

EC

TIO

N R

ING

Ø

A,O

uts

ide D

iaT

ole

ran

ces, A

8.0

00

+ 0

.050

- 0

.000

12

.000

+ 0

.050

- 0

.000

15

.000

+ 0

.050

- 0

.000

11

.938"

+0

.100

-0.0

00

14.9

38"/

17.2

50"

+0

.100

-0.0

00

9.9

38"

+0

.000

-0.0

30

AA

,Ou

tsid

e D

iaT

ole

ran

ce

s, A

A

AA

A,O

uts

ide D

iaT

ole

ran

ce

s, A

AA

+ 0

.050

- 0

.000

+ 0

.050

- 0

.000

+ 0

.050

- 0

.000

8.5

01

2.5

01

5.5

0

B,

Bo

lt C

ircle

Tole

ran

ce

s, B

7.2

50

± 0

.010

11

.250

± 0

.010

14

.250

± 0

.010

11

.250

± 0

.010

14

.250

± 0

.010

BB

, B

olt C

ircle

To

lera

nces, B

B6

.250

± 0

.010

10

.250

± 0

.010

13

.250

± 0

.010

7.2

50

± 0

.010

11

.250

± 0

.010

C, In

sid

e D

iaT

ole

ran

ce

s, C

+ 0

.015

- 0

.000

+ 0

.015

- 0

.000

+ 0

.015

- 0

.000

6.5

00

10

.000

13

.000

+ 0

.015

- 0

.000

8.1

25*

+ 0

.015

- 0

.000

12

.25

0*

CC

, In

sid

e D

iaT

ole

ran

ce

s, C

C+

0.0

15

- 0

.000

6.5

00

+ 0

.015

- 0

.000

10

.000

T, T

hic

kn

ess (

ste

el)

.750

.750

1.2

50

1.2

50"

1.2

50"

t, T

hic

kn

ess (

ply

wood)

3/4

w/o

Mu

d P

late

5/8

w/

Mu

d P

late

Mu

d P

late

5/8

w/

Mu

d P

late

3/4

w/o

1-1

/4

AB

C8

" T

O 1

2"

12

" T

O 1

5"

Siz

es

Typ

ical A

da

pte

r R

ing

11/06/2015 AC 150/5345-42H

Appendix A

41

APPENDIX A. 10-INCH (254 MM) LIGHT BASE.

The 10 inch light base in this Appendix Figure is included for reference only.

AC 150/5345-42H 11/06 /2015

Appendix A

42

Figure A-1. Extensions and Spacers for 10-inch (254 mm) Diameter Type L-868 Base, for

Maintenance of Existing Installations Only

He

igh

t to

Ord

er

min

imu

mT

ole

ran

ce

±1

/16

in

.(±

1.5

mm

)

Dri

ll &

Ta

p3

/8 in

(9

.53

mm

)1

6 N

C (

nm

eq

)

Eq

ua

lly S

pa

ce

dT

ap

aft

er

ga

lvin

izin

g

Dri

ll 7

/16

in

(11

.1 m

m)

6 T

hru

Ho

les E

qu

ally

Sp

ace

dT

op

an

d B

ott

om

Att

ach

ed

to

C B AA

E

7/1

6 in

.(1

1.1

mm

)6

Th

ru H

ole

sE

qu

ally

Sp

ace

d

C B A C

0.7

50

in

. (1

9.1

mm

)

0.1

09

in

. m

in.

(2.7

7 m

m)

3/8

in

. (9

.5 m

m)

min

.

.125

.125

.125

.125

No

min

al D

iam

ete

r

A,

Ou

tsid

e D

iaT

ole

ran

ce

s,

A

B,

Bo

lt C

ircle

To

lera

nce

s,

B

C,

Insid

e D

iaT

ole

ran

ce

s,

C

10

in

ch

+0

.05

0

-0.0

00

9.2

50

±0

.00

5

8.0

00

+0

.01

5

-0.0

00

E,

Ch

ord

To

lera

nce

s,

E4

.62

5

±0

.00

5

2 in

. (5

1 m

m)

Sid

ew

alls

With

Co

ntin

uo

us W

ate

rtig

ht

We

ld30°

X

Y

X

Y

12

Th

ru H

ole

s

No

Ho

les O

n

X-X

Or

Y-Y

Axis

On

1

0 in

. (2

54

mm

)S

ize

10

.50

0

H,

Op

tio

na

l

Alig

ne

d W

ith

Ho

les I

n T

op

EX

TE

NS

ION

SP

AC

ER

RIN

G

1/1

6 in

. (1

.5 m

m)

Min

imu

mF

or

Fla

t S

pa

ce

r R

ing

1/4

in

. (6

.35

mm

) M

inim

um

Fo

r G

roo

ve

d S

pa

ce

r R

ing

To

1-1

5/1

6 in

. (4

9.2

mm

)

H,

Op

tio

na

l

H,

Gro

ove

Dia

To

lera

nce

s,

H8

.14

5±0

.00

8

"O"

Rin

g G

asket D

eta

il

0.2

10

(5.3

3 m

m)

(5.3

3 m

m)

0.2

10

G

G,

Ga

ske

t D

iaT

ole

ran

ce

s,

G8

.16

0±0

.00

8

NO

TE

S:

1.

Su

pp

ly S

ix 1

8-8

Sta

inle

ss S

tee

l (o

r

3/8

in

. (9

.53

mm

) U

NC

16

(n

me

q)

Bo

lts O

f A

Le

ng

th R

eq

uir

ed

Fo

r M

inim

um

1/2

in

(1

3 m

m)

Th

rea

d E

ng

ag

em

en

t In

To

p F

lan

ge

Of

L-8

68

Co

nta

ine

r W

ith

Ea

ch

Sp

ace

r R

ing

. F

or

Exte

nsio

ns S

up

ply

Tw

elv

e B

olts M

ee

tin

g T

he

Sa

me

Re

qu

ire

me

nts

.

2.

Ta

bu

late

d D

ime

nsio

ns S

ho

wn

Ab

ove

Are

inch

es,

To

Co

nve

rt I

n.

to m

m,

Mu

ltip

ly b

y 2

5.4

.

nm

eq

me

an

s n

o m

etr

ic e

qu

iva

len

t.

Gro

ove D

eta

il

-0.0

05

in

(0

.13

mm

)+

0.0

00

in

(0

.00

mm

)0

.16

5 in

(4

.19

mm

)

H0

.24

0 in

(6

.10

mm

)

7°

ma

x

Exte

nsio

ns a

nd s

pacers

for

10 inch D

iam

ete

r ty

pe

L-8

68

base.

Exte

nsio

ns a

re f

or

use

on

exis

tin

g b

ase

s o

nly

to

pro

vid

e h

eig

ht

ad

justm

en

ts w

he

n c

ha

ng

es in

pa

ve

me

nt

leve

l o

ccu

r.

To

lera

nce

s,

AA

AA

, O

uts

ide

Dia

-0.0

00

10

.00

0

+0

.05

0

co

ate

d s

tee

l b

olts p

er

EB

#

83

) H

ex H

ea

d

Advisory Circular Feedback

If you find an error in this AC, have recommendations for improving it, or have suggestions for

new items/subjects to be added, you may let us know by (1) mailing this form to:

Federal Aviation Administration

Airport Engineering Division (AAS-100)

800 Independence Avenue SW

Washington, DC 20591

or (2) faxing it to the attention of Manager, Airport Engineering Division (AAS-100),

(202) 267-3688.

Subject: AC 150/5345-42H, Specification for Airport

Light Bases, Transformer Housings, Junction Boxes, and

Accessories

Date:

_____________________

Please check all appropriate line items:

☐ An error (procedural or typographical) has been noted in paragraph ________________ on

page __________________.

☐ Recommend paragraph ______________ on page ______________ be changed as follows:

_________________________________________________________________________

_________________________________________________________________________

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☐ In a future change to this AC, please cover the following subject: (Briefly describe what you want added.)

_________________________________________________________________________

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☐ Other comments:

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☐ I would like to discuss the above. Please contact me at (phone number, email address).

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