Cable Tray Installation

PMI ENGINEERING S.A.Rue des Usines 90CH-2000 NeuchâtelPhone : +41 (0)32 888 31 21Fax : +41 (0)32 888 31 10E-mail : [email protected] : http://www.eng.ch.pmi

Prepared by: Peter Erös date: 22. 08. 2005 Neuchâtel, 22/09/05

Approved by: Harold Radcliffe date: 15. 09. 2005

Electrical Equipment Specifications

CABLE TRAYS

DOCUMENT 40.02.03.00015

VERSION 1.0

Revision: 1.0 Doc: 40.02.03.00015 Date: 22/09/05 Page 2 of 10Project: Cable trays

1.1 IntroductionElec. Equipments

specification

Document Changes record

Date Version By Changes Pages

15.09.2005 1.0 Peter Erös First issue All



specification

Table of contents

1... Overview .................................................................................................................. 41.1 Introduction ..................................................................................................................... 41.2 References....................................................................................................................... 4

2... General ..................................................................................................................... 42.1 Product specification...................................................................................................... 42.2 General cable trunking arrangement, separation ......................................................... 5

3... Cable tray and accessories .................................................................................... 63.1 Material ............................................................................................................................ 63.2 Size................................................................................................................................... 63.3 Supports .......................................................................................................................... 63.4 Fittings / Splices (couplers)............................................................................................ 63.5 Divider Strips................................................................................................................... 73.6 Grounding, EMC.............................................................................................................. 73.6.1 UL Classified cable trays ................................................................................................ 73.6.2 Not UL Classified cable trays.......................................................................................... 73.6.3 EMC ............................................................................................................................... 8

4... Cable management accessories ............................................................................ 84.1 Cable arrangement, fixing .............................................................................................. 84.2 Cable exit ......................................................................................................................... 9

5... Fire stop ................................................................................................................... 9

6... Terminology........................................................................................................... 10



specification

1. Overview1.1 Introduction

The purpose of this document is to define standards to the OEM’sand PMI affiliates concerningapplication and installation of cable trunking systems in PMI Tobacco Processing Lines, eitherfor a Greenfield or the extension of an existing line. The contractor has to notify PMIEngineering in written in case of any different materials or installation methods he wants toapply.

1.2 ReferencesIEC/EN 61537–Cable Tray Systems and Cable Ladder Systems for Cable ManagementIEC 61084-1–Cable trunking and ducting systems for electrical installations - Part 1: GeneralrequirementsEN 50174-2–Information technology. Cabling installation. Installation planning and practicesinside buildingsEN 50310–Application of equipotential bonding and earthing in buildings with informationtechnology equipmentThe intent of this specification is not to cover all regulations and safety aspects to be consideredin a given project. The contractor is responsible for adherence to all international standards andlocal regulations which must be adapted in addition to this specification.

2. General2.1 Product specificationAccording to PMIE best practices for cable trunking purposes only open, wire mesh or laddertype cable management systems can be used in order to minimize dust contamination andallow easy cleaning of cable lines in tobacco processing areas. To minimize diversity and sparepart needs, as general PMI standard the following product is specified:

CABLOFIL welded steel wire mesh cable management system.

Manufacturer: CABLOFILCustomer service: 1, route de Semur

21500 Montbard - FranceTel.: 33 (0) 3 80 89 58 89Fax: 33 (0) 3 80 92 09 67Email: [email protected]

or [email protected]: www.cablofil.com

For local support please check the next website:http://www.cablofil.com/content.aspx?page=7&site=7

Exceptions:

- In case of need, for trunking of heavy power cables between building distributor andcontrol cabinets open ladder type trays (consisting of two longitudinal members (siderails) with transverse members (rungs) welded to the side rails) from other manufacturercan be used. For product specification please check the relevant PMI Building & Utilitiesguideline.

mailto:[email protected]


http://www.cablofil.com/

http://www.cablofil.com/content.aspx?page=7&site=7


2.2 General cable trunking arrangement,separation

Elec. Equipmentsspecification

- Where application of chain cable carriers is necessary (e.g. on silos), the preferredsolution is steel cable carriers from KabelSchlepp.KABELSCHLEPP GMBH - Marienborner Str. 75 - D-57074 Siegen - GermanyTel.: 0271/5801-0; Fax: 0271/5801-220; Email: [email protected]: www.kabelschlepp.de

2.2 General cable trunking arrangement, separation

For proper separation of power supply cables from low voltage control / communication cablestwo separated backbone lines (0.2 m distance) shall be implemented, started from the controlcabinet. Within branch line trays the separation shall be realized by application of Cablofil COTDivider Strips.

COT Divider Strip - Product andapplication example:


http://www.kabelschlepp.de/


3.1 MaterialElec. Equipments

specification

3. Cable tray and accessories3.1 MaterialSpecified material for cable tray, its supports and accessories in area of DCC, CC, Kitchen,Flavor Application, Dryers and exterior installations is stainless steel (316 L).

In other areas application of hot dipped galvanized (GC) products can be considered.

Note: It’s strictly forbidden to install any plastic cable trays in areas of potential tobacco contamination!

3.2 Size

Straight cable tray sections shall be as long as possible to minimize fittings.

Cable tray depth and width shall be optimized for the application, but the fill ratio must notexceed 75% of total fill capacity. Size cable tray to accommodate future cabling changes oradditions.

3.3 Supports

Install and support cable management system in accordance with IEC 61537, with load spancriteria of L/20 (to exceed standard requirements of L/10) and a Safety Factor of 1.7.

The safe working load (SWL) as defined by the standard is thelowest value of either:

- The load creating a deflection of L/20 at the end.- The breaking load divided by 1.7, if the deflection at

L/20 is not reached.

For sizing an Interactive Load Table is available on Cablofil website:http://www.cablofil.com/content.aspx?page=2803&section=50

Supports shall include the FAS (Fast Assembly System) where possible so that screws, bolts,and additional tools are not required for cable tray mounting; installation time is reduced; andtray path can adapt to installation obstacles without the need for additional parts.

3.4 Fittings / Splices (couplers)

Wire mesh cable tray fittings are field-fabricated from straight tray sections, in accordance withmanufacturer’s instructions, and must be coupled with original Cablofil splices.Splices approved for electrical continuity (bonding) shall be used as recommended by Cablofil.

Use EDRN FAST SPLICE and/or FASLOCK SPLICE where possible.

EDRN FAST SPLICE FASLOCK SPLICE

http://www.cablofil.com/content.aspx?page=2803&section=50


3.5 Divider StripsElec. Equipments

specification

3.5 Divider Strips

COT DIVIDER STRIPS shall be used inside cable trays for separation (see 2.2).

3.6 Grounding, EMC

3.6.1 UL Classified cable trays

UL Classified cable trays may act as Equipment Grounding Conductors. Contact Cablofil forapproved sizes.Use UL Classified splicing methods as recommended by Cablofil.

In order to benefit from the safety and EMC advantages, Cablofil trays must be bonded to theground of the installation at each end and at least every 15 to 20 m with Cablofil groundingclamps, and protective conductor. The minimum cross-section of the protective conductor shallbe 16 mm2 (~6 AWG).

If the length is less than 15 to 20 m, trays must be connected to the ground at each end.

To correctly evacuate any fault and noise currents, the electrical circuit formed by the cable traymust be closed.

3.6.2 Not UL Classified cable trays

Cable trays that are not UL Classified (or UL Classification is not accepted locally) shall begrounded against fault current, noise, lightning, and electromagnetic interference by mountinggrounding wire to each cable tray section with Cablofil grounding clamp.


4.1 Cable arrangement, fixingElec. Equipments

specification

3.6.3 EMC

General EMC related rules:

Separate the power and DATAcables (20cm separation)

Cables of different families shouldcross each other at right angles

Provide electrical continuity:Metallic cable tray and low

resistance couplers.

Connect the cable trays to earthnetwork (15 to 20 meters)

For further EMC related details please refer to the PMIE EMC specification document.

4. Cable management accessories4.1 Cable arrangement, fixing

For proper arrangement and fixing of cables inside trays use Cablofil MFM METALLICMULTIFIX PLATE with metal cable ties from e.g. BAND-IT, PANDUIT, LAPPKABEL. Cable tiematerial must be the same as the material of the MFM PLATE and the cable tray. Application ofplastic/nylon ties is not accepted.

MFM MULTIFLEX PLATE Metal cable ties


4.2 Cable exitElec. Equipments

specification

4.2 Cable exit

For protecting cables when exiting and entering tray use Cablofil CABLEXIT or DROP OUT.

CABLEXIT DROP OUT

5. Fire stopProducts or combinations of materials must be used to restore the integrity of all fire-rated wallsor floors that are penetrated by cables and/or cable tray so as to restore the fire integrity of thewall or floor and prevent the spread of heat, fire, gasses, and smoke.

Fire stop products, materials, and systems shall be used that meet the following performanceand quality assurance requirements:

- Conform to both flame and temperature ratings as required by local regulations.- Be capable of closing or filling through-openings created by the burning of combustible

cable jacketing or movement of cable tray due to thermal expansion.- Be compatible with and appropriate for:

o The cable tray dimensions and materials,o The cable sizes and jacket materials,o The materials and construction of the penetrated wall or floor.o The environment at the installation location.

- Allow future cable changes.- Not affect the electrical properties of power or communications cables.

Use EZ-Path fire stop solution from Cablofil, which fulfils the above listed requirements.


4.2 Cable exitElec. Equipments

specification

6. TerminologyAWG American Wire GaugeEMC Electromagnetic CompatibilityEN European NormCC Casing CylinderDCC Direct Conditioning CylinderIEC International Electrotechnical CommissionOEM Original Equipment ManufacturerPMI Philip Morris InternationalPMIE Philip Morris International EngineeringUL Underwriters Laboratories Inc.

This mark appears on representative samples of products that UL hasevaluated but only with respect to specific properties, a limited range ofhazards, or suitability for use under limited or special conditions.

Typically, products Classified by UL fall into the general categories of buildingmaterials and industrial equipment.

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Cable Tray Installation