NBR 5413 English

7/27/2019 NBR 5413 English

1/21

ABNT STANDARD NBR 5413

Illumination of Indoor Areas

Procedure

1. ObjectiveThis standard establishes the average minimum illumination values for services at interior areaswith artificial lighting on commercial, industrial, educational, sporting or other activities.

2. Complementary DocumentsThe documents listed below shall be considered when using this standard:

NBR 5382 Illumination of Indoor Areas Verification Test Method

NBR 5461 Illumination terminology

3. DefinitionsThe technical terms used in this standard are defined in items 3.1 and 3.2 below and on NBR

5461.

3.1 Illumination LevelIt is the limit of the light influx at the surface around a given point when the surface are

tends to zero.

Note: the illumination level is determined according to NBR 5382.

3.2 Working areaArea where suitable lighting conditions are required for the performance of visual work.

4. General Conditions4.1 The illumination level shall be taken at the working area. If this cannot be determined, it is

assumed to be a horizontal flat surface 0.75m above the floor.

4.2 In case it is necessary to increase illumination in a limited area at a working place,additional lighting may be used.

4.3 The illumination level at the remainder work place shall not be less than 1/10 of the levelused at the smaller area, even if the requirement calls for a smaller value.

4.4 It is recommended that the illumination level at any point of the work area shall not be lessthan 70% of the average illumination level set forth on NBR 5382.

5. Illumination Level Table5.1 Illumination levels per class of visual work

See Table 1.

Free translation into English language page 1 of 21

7/27/2019 NBR 5413 English

2/21


Table 1 Illumination level per class of visual tasks

ClassIllumination level

(lux)Type of activity

20 30 50 Public areas with dark surroundings

50 75 100 Simple tasks for short period of time

100 150 200Areas not used for continuous work;

storage areas

AGeneral lighting for areas of

non-continuous use or with

simple visual tasks

200 300 500Tasks with limited visual demand,

machinery heavy work, auditoriums

500 750 1000Tasks with regular visual demand,

machinery medium duty, officesB

General lighting for workareas 1000 1500 2000

Special requirement tasks, manual task,

inspection, clothes industry

2000 3000 5000Accurate and prolonged visual tasks,small electronic components handling

5000 7500 10000High accuracy visual tasks,

microelectronics

C

Additional lighting for

complex visual tasks

10000 15000 20000 Very special visual tasks, surgery

Note: Classes, as well as types of activities are not fixed as far as recommended illumination level. It

depends on the designer to define values of adjacent classes/types of activities, according to the

characteristics of areas and tasks.

5.2 Illumination level selectionIt is recommended that procedures in items 5.2.1 to 5.2.4 shall be considered on the

determination of illumination levels.

5.2.1 Table 1 shows the illumination level values per class of visual work. The correctdetermination of the specific illumination levels shall consider three factorsaccording to Table 2.


7/27/2019 NBR 5413 English

3/21


Table 2 Factors to determine suitable illumination levels

WeightCharacteristics of task and

user -1 0 +1

Age less than 40 years 40 to 55 years above 55 years

Speed and precision not important important critical

Background reflection above 70% 30-70% below 30%

5.2.2 Procedure:a) verify each characteristic and determine the weight (-1, 0, or +1);b) add the three values considering their signals;c) If the value is equal to 2 or 3, use the lower illumination level value;

If the value is equal to +2 or +3, use the upper illumination level value;

Use medium level value in other cases.

5.2.3 The majority of the visual work presents at least requirements for medium values.5.2.4 Three illumination levels for each type of activity or location are indicated in 5.3,

and the value determination shall be according to the following criteria:

5.2.4.1The medium illumination level shall be considered in all cases5.2.4.2The upper value shall be used if:

a)

the work presents a very low contrast and reflection levels;b) mistakes are of difficult correction;c) visual work is critical;d) high performance or high precision are important factors;e) visual capacity of the operator is below average.Note: For the sake of example, one can consider reading a newspaper a low

importance task and reading a doctors prescription a critical task.

5.2.4.3The lower value may be used if:a)

contrast and reflection levels are high;

b) performance or precision are not important;c) task is occasionally performed.

5.3 Average service illumination levels per activity type - in lux5.3.1 Packing

- packing, crating, casing 100 150 200


7/27/2019 NBR 5413 English

4/21


5.3.2 Auditorium and amphitheaters- tribune 300 500 750

- audience 100 150 200

- waiting room 100 150 200

- ticket office 300 150 750

5.3.3 Banks- customer services 300 500 750

- accounting 300 500 750

- statistics and accounting 300 500 750

- typing office 300 500 750

- managers offices 300 500 750

- reception desks 100 150 200

- conference room 150 200 300

- teller counter 300 500 750

- filing room (including accommodations for low importance work) 200 300 500

- files 200 300 500

- hallway 100 150 200

- cafeteria 100 150 200

5.3.4 Barber shops- general 150 200 300

5.3.5 Libraries- reading room 300 500 750

- bookshelves area 200 300 500

- card areas 200 300 500

5.3.6 Electric Power Plants- air conditioning equipment, ventilation equipment, ash

condensers. ash and soot blower installation 100 150 200

- accessories and tools such as batteries, accumulators, boilerfeed water piping, compressors and related instrumentation 100 150 200

- boiler platforms 100 150 200

- fuel supply system 100 150 200

- coal conveyor belts, grinders, coal powder installations 100 150 200

- turbine foundation 100 150 200


7/27/2019 NBR 5413 English

5/21


- turbine room 100 150 200

- Hydrogen and Carbon Dioxide installations 100 150 200

- chemical laboratory 300 500 750

- control room (main console) and central control room 300 500 750

- small control rooms 200 300 500

- area behind distribution panels (vertical) 100 150 200

- telephone switchboard room 100 150 200

5.3.7 Brewery- resting chambers 100 150 200

- brewing area and barrel cleaning area 150 200 300

- filling area (bottles, cans, barrels) 150 200 300

5.3.8 Theaters and movie theaters- projection room:

during projection (guide light) 1

during intermission 30 50 75

- waiting room, hall 100 100 200

- box offices 300 500 750

5.3.9 Medical office (see 5.3.28)5.3.10 Hallways and stairways

- general 75 100 1505.3.11 Post office (see 5.3.3)5.3.12 Book handling

- folding, assembly, gluing, etc. 200 300 500

- cutting, punching, sewing 200 300 500

- engraving and inspection 750 1000 1500

5.3.13 Schools- classrooms 200 300 500

- blackboards 300 500 750

- arts and crafts room 200 300 500

- laboratories:general 150 200 300

local 300 500 750

- amphitheaters and auditoriums:Free translation into English language page 5 of 21

7/27/2019 NBR 5413 English

6/21


audience 150 200 300

tribune 300 500 750

- drafting room 300 500 750

- conference room 150 200 300

- physical education room 100 150 200

- sewing or similar activities 300 500 750

- cooking 150 200 300

5.3.14 Offices- records, mapping 750 1000 1500

- drafting, mechanical engineering and architecture 750 1000 1500

- design, decoration and drafting 300 500 750

5.3.15 Sport areas- pool and billiard:

general 100 150 200

tables 300 500 750

- bowling 150 200 300

-bowling alleys:bowling area and lanes 150 200 300

pins area 300 500 750

-basketball and volleyball:game court 150 200 300

recreation and training areas 100 150 200

- fencing 300 500 750

- gymnastics 150 200 300

- hockey:large spaces 300 500 750


- indoor soccer:game court 150 200 300


- lacrossegame area 150 200 300



7/27/2019 NBR 5413 English

7/21


- swimming pool (general lighting) 100 150 200

- skating:racing 150 200 300

recreation 100 150 200

-boxing and wrestlingring 750 1000 1500


- tennis:court 300 500 750


5.3.16 Bus and train stations- concourse 100 150 200- offices and ticket counters 300 500 750- cafeteria 100 150 200- luggage locker 150 200 300-platforms 100 150 200- restrooms 100 150 200

5.3.17 Water and sewage treatment plant- chemical operations (laboratory):

general 150 200 300workbench or table 300 500 750

5.3.18 Shipyards- assembly shop 150 200 300- molding 300 300 750- welding shop 150 200 300- slipway:

cranes 100 150 200

working areas 150 200 300

transportation areas 100 150 200

5.3.19 Manual tapestry or similar- general 300 500 750

5.3.20 Pharmacy and drugstores (see 5.3.28)


7/27/2019 NBR 5413 English

8/21


5.3.21 Foundry- load/unloading area 100 150 200- molding and inserts manufacturing (fine work) 300 500 750- molding and inserts manufacturing (heavy work) 150 150 300- gross molding 150 200 300- foundry and sorting area 200 300 500- cleaning and finishing 150 200 300- inspection (detailed material) 750 1000 1500- inspection (raw material) 300 500 750

5.3.22 Sheet steelwork- workbench, press, cutting machine, stamping, cold rollers,punching machines 200 300 500

- galvanized steel sheet inspection, marking, drafting 750 1000 15005.3.23 Dental offices (see 5.3.28)5.3.24 Art gallery (see 5.3.58 and 5.3.61)5.3.25 Galvanizing and similar activities

- immersion (dip) 100 150 300-polishing 150 200 300

5.3.26 Garages and gas stations- workshops 150 150 300- workbenches 300 300 750- lubrication areas 100 100 200- oil change pits 150 200 300- washing areas 150 200 300- covered parking 100 150 200- store 300 500 750

5.3.27 Hangars- maintenance and repair 300 500 750- engine maintenance 300 500 750

5.3.28 Hospitals- Doctors or nurses office:

general 100 150 200

desks 300 500 750


7/27/2019 NBR 5413 English

9/21


- preparation room 150 200 300

- file room 100 150 200

-pharmacy:general 150 150 300

work table 300 500 750

- radiology:laboratory 300 300 750

measurement room 150 200 300


- otolaryngologyexamination room 300 300 750

- autopsygeneral 300 500 750

morgue 100 150 200

- therapyphysical 150 200 300

application 150 200 300

- restrooms 100 150 200

- X-ray:X-ray, contrast X-ray and chamber 100 150 200deep and light radiotherapy 100 150 200

sample tests 150 200 300

X-ray films file 150 200 300

non-developed films storage 100 150 200

- infirmary:general 100 150 200

table 300 500 750

medicine closet 100 150 300

-bathrooms:general 100 150 200

mirrors (additional lighting) 200 200 500

- library 300 500 750- emergency room:


7/27/2019 NBR 5413 English

10/21


general 300 500 750

- hallways and stairways 75 100 150

- offices (see 5.3.14)- kitchen 150 150 300-pathology laboratory

research room 150 200 300


- diagnosis roomgeneral 150 200 300

diagnosis table 300 500 - 750

- surgical department:surgery room (general lighting) 300 500 750

sterilization room 300 500 750

- dental department:dentist office (general lighting) 150 200 300

- washing room 100 150 200

- maternity department:delivery room (general lighting) 150 200 300

nursery 75 100 150

nursery attending room 150 200 300- laundry (see 5.3.55)-patient room:

general 100 150 200

bed 150 150 300

5.3.29 Hotels and restaurants-bathrooms 100 150 200- mirrors (additional lighting) 200 300 500- hallways and stairways 75 100 150- laundry (see 5.3.55)- reading room:

general 100 150 200

table 200 300 500

- kitchen:Free translation into English language page 10 of 21

7/27/2019 NBR 5413 English

11/21


general 150 200 300

local 300 500 750

- rooms:general 100 150 200

bed (additional lighting) 150 200 300

desk 200 300 500

vanity 200 300 500

- conference room:room 100 150 200

podium 300 150 750

- expositions and demonstrations 200 300 500

- guest meeting room 100 150 200

- restaurants 100 150 200

- snack bars 150 200 300

- self-service 150 200 300

- reception 150 200 300

- phone center 150 200 300

5.3.30 Churches and Temples- nave, entrance, auditorium, non-service hours 30 50 75

- nave, entrance, auditorium, service hours 100 150 200- altar, during service 200 300 500

5.3.31 Food processing- rejects selection 150 200 300

- cleaning and washing 150 200 300

- color selection (cutting room) 750 1000 1500

- cutting and seed removal 150 200 300- canning:

mechanical, with conveyor belt 150 200 300

manual 200 300 500

full can inspection (test sampling) 750 1000 1500

- can handling:inspection 750 1000 1500

can sealing 150 200 300


7/27/2019 NBR 5413 English

12/21


can packing in carton boxes 100 150 200

5.3.32 Gold jewelry industry- general 750 1000 1500- local 1500 2000 3000

5.3.33 Automotive industry-body and frame fabrication, parts assembly 200 300 500- assembly line 300 500 750-body assembly 200 300 500- finishing and inspection 750 1000 1500

5.3.34 Aircraft industry- fabrication:drilling, riveting and pivoting 200 200 500

painting booth 300 500 750

aluminum plate risking, jig or model fabrication, body parts,

wing parts, etc. 300 500 750

- welding:general lighting 150 200 300

additional spot lighting 1500 2000 3000

- assembly:landing gear, assembly, wing parts, body and other large parts 300 500 750

- final assembly:engine assembly, wing parts, landing gear, etc. 300 500 750

complete body and equipment inspection 300 500 750

machinery repair 3300 500 750

5.3.35 Rubber industry- raw material processing:

grinding, vulcanizing 100 150 200

rolling 150 200 300- other operations:

machines for tires, hoses, compression molding, extrusion,

refining 150 200 300

- final inspection 750 1000 1500


7/27/2019 NBR 5413 English

13/21


5.3.36 Shoes manufacturing- leather:

model risking, cut, sewing, assembly and classification 750 1000 1500

tacking, sole fitting, side sewing, forming, cleaning, dying,

polishing 750 1000 1500

- rubber:washing, treating, rubber sheet manufacturing 100 150 200

varnishing, vulcanizing, rolling, cutting 150 200 300

soles rolling, lining gluing, assembly and finishing 300 500 750

5.3.37 Pottery industry- grinding, filtering, pressing and drying 100 150 200- molding, finishing and cleaning 100 150 200-painting and baking (gross) 300 500 750-painting and baking (fine) 750 1000 1500

5.3.38 Hat manufacturing- dying, weathering, cleaning and refining 300 500 750- forming, sizing, brim sewing, finishing and ironing 750 1000 1500- sewing and finishing 1500 2000 3000

5.3.39 Cement industry- grinding, furnace 100 150 200- sacking 100 150 200- scales, panels and instruments 300 500 750

5.3.40 Bakery- chocolate section:

grinding, selection, fat extraction, cleaning and purification,transportation 150 200 300

- candy preparation 300 500 750

- fillings:mixing, cooking, stirring 150 200 300

manual decoration 300 500 750

- hard candies:mixing, cooking, stirring 150 200 300

cutting, classification, wrapping 300 500 700


7/27/2019 NBR 5413 English

14/21


5.3.41 Prepared meet industry- cattle handling 100 150 200- cleaning and butchering 300 500 750- cooking, grinding, canning and packing 150 200 300

5.3.42 Leather industry- tanks 100 150 200- cleaning, preparation, pressing, dying 100 150 200- separation, preparation 150 200 300- finishing and inspection 300 500 750

5.3.43 Tobacco industry- drying, shredding, cutting and mixing 150 200 300-preparation of components 150 200 300- inspection and classification 750 1000 1500- cigarette, cigar and filter machinery 300 500 750-packing 300 500 750

5.3.44 Ice- general 150 200 300

5.3.45 Engraving signs or letters- general 1500 2000 3000

5.3.46 Glove manufacturing- cutting, pressing, punching 750 1000 1500- lining, classification 300 500 750- sewing, finishing, inspection 1500 2000 3000

5.3.47 Electrical and telecommunication material- resin application 150 200 300- insulation 300 500 750- winding, reeling 300 500 750- tests, inspection 300 500 750- mechanical work and assembly (see 5.3.33)

5.3.48 Metal fabrication industry- gross machining and filing 150 200 300- medium machining, filling, gross work on lathe and shaver,

polishing 300 500 750


7/27/2019 NBR 5413 English

15/21


-precision machining and filing, automatic precision machines,shaving, precision lathes, high quality polishing 750 1000 1500

- high precision machining, fitting 1500 2000 30005.3.49 Paper industry

- opening, grinding, rolling 150 200 300-paper machinery, cutting, refining 150 200 300- wet side of paper machinery 150 200 300- dry side of paper machinery, inspection, laboratory 300 500 750

5.3.50 Chemical industry- manual furnaces, stationary dryers, boilers and tanks 150 200 300- mechanical furnaces and tanks, evaporation vessels, filters,

clearing 150 200 300

-boilers, extraction equipment, filters, electrolysis equipment 150 200 300- manufacturing and repair of clocks, stop-watches and

precision equipment:

general 1500 2000 3000

5.3.50.1 Soap industry- simmering, cut, powder preparation 150 200 300-pressing, wrapping, packing of powder soap, packing in

general 150 200 300

5.3.51 Textile industry- cotton:

opening of rolls, batters, mixture, classification 150 200 300

preparation of threads, reeling 200 300 500

classification, preparation 300 500 750

reeling 300 500 750

weaving 300 500 750

inspection (still pieces) 300 500 750

inspection (moving pieces) 750 1000 1500automatic grouping 750 1000 1500

manual grouping 300 500 750

- silk and synthetic fibers:cleaning, dying and drying 150 200 300

reeling 150 200 300


7/27/2019 NBR 5413 English

16/21


threading 300 500 750

weaving 300 500 750

- wool:opening of rolls, batting, mixing and classification 150 200 300

washing 150 200 300

mixture 150 200 300

inspection 300 500 750

treading, stretching, preparation, braiding 150 200 300

spinning (white) 150 200 300

spinning (colored) 300 500 750

weaver (white) 300 500 750

weaver (colored) 750 1000 1500

warping 300 500 750

grouping 150 200 300

5.3.52 Paint industry- general 150 200 300- color preparation according to standards (at the factory) 750 1000 1500

5.3.53 Clothing industry- material inspection 1500 2000 3000- cutting and ironing 750 1000 1500- sewing and finishing 750 1000 1500

5.3.54 Glass industry- mixture rooms and furnace rooms, molding, pressing, cooling

and machine blowing 150 200 300

- grinding, dimensional cutting and plating 300 500 750- fine grinding, polishing, beveling 300 500 750- engraving, polishing, inspection 750 1000 1500

5.3.55 Laundry- laundry 150 200 300- ironing, weighing, counting and marking 150 200 300- rolling, classification 150 200 300- manual ironing of delicate clothes 300 500 750


7/27/2019 NBR 5413 English

17/21


5.3.56 Lavatories- general 100 150 200- mirror 200 300 500

5.3.57 Storage areas- general storage (not frequently used) 75 100 150- factory warehouse (frequently used):

large crates storage 150 200 300

small crates storage 150 200 300

storage of very small pieces 200 300 500

5.3.58 Stores- windows and counters (large cities shopping malls):

general 750 1000 1500

additional lighting with concentrated focus 3000 5000 7500

- windows and counters (other than before):general 300 500 750

additional lighting with concentrated focus 1000 1500 2000

- inside:general products stores 300 500 750

shopping centers and malls 300 500 750

other 300 300 7505.3.59 Carpentry

- sawing, planing, gross work 150 200 300- sizing, planing, gross sanding, medium work, gluing,

assembly 200 300 500

- fine work, finishing, fine sanding 300 500 7505.3.60 Flour mills

- milling, straining, purifying 150 200 300- sacking 150 200 300-product inspection 300 500 750- strainers cleaning, tank inspection, passageways 150 200 300

5.3.61 Museums- general 75 100 150-painting (additional lighting) 150 200 300


7/27/2019 NBR 5413 English

18/21


- sculptures and other objects 300 500 7505.3.62 Bread making

- dough mixing room 150 200 300- mixer (vertical lighting) 100 150 200- fermentation room 100 150 200-preparation room 150 200 300- oven area 150 200 300- decoration 200 300 500-packing area 150 200 300

5.3.63 Painting shops- immersion, spraying, stripping, sanding, painting and

finishing 200 300 500

- high quality painting and finishing 300 500 750- superior quality painting (automotive, etc.) 750 1000 1500-polishing 200 300 500

5.3.64 Paper products (carton boxes)- manufacturing area 200 300 500- storage 100 150 200

5.3.65 Residences- living rooms:

general 100 150 200

local (reading, writing, embroidering, etc.) 300 500 750

- kitchen:general 100 150 200

local (sink, stove, table) 200 300 500

-bedrooms:general 100 150 200

local (mirror, vanity, bed) 200 300 500- hallway, stairs, pantry, garage:

general 75 100 150

local 200 300 500

-bathrooms:general 100 150 200


7/27/2019 NBR 5413 English

19/21


local (mirror) 200 300 500

5.3.66 Restaurants (see 5.3.29)5.3.67 Steel mill I

-bulk material storage 100 150 200- loading areas 150 200 300- oven filling:

residue well 150 200 300

inspection holes 150 200 300

- block foundry 150 200 300

- block storage 150 200 300

- oven door or refractory bricks repair 150 200 300

- scrap material storage 150 200 300

- steel milling 150 200 300

- grinding compartment 150 200 300

5.3.68 Welding- general lighting 150 200 300

- manual precision arc welding 1500 2000 3000

5.3.69 Tapestry- furniture upholstery 300 500 750

5.3.70 Video monitors- document editing 300 500 750

- keyboard 300 300 300

5.3.71 Dry cleaners- marking, classification, washing 150 200 300

- inspection and stain removal 1500 2000 3000

- ironing (mechanical or manual) 300 500 750

- alterations 750 1000 1500

5.3.72 Typography-preparation:

typographic stamp preparation 300 500 750

stamp foundry (mechanical or manual) 200 300 500

- typographic shops:color inspection 750 1000 1500


7/27/2019 NBR 5413 English

20/21


matrix assembly (mechanical or manual) 200 500 750

printing 200 300 500

typographic table 300 500 750

revision 300 500 750

- chemical section:matrix engraving, touchup, finishing 300 500 750

stereotyping 200 300 510

- lithography:engraving, proof test 200 300 500

touchup and inspection 300 500 750

color preparation 300 500 750

covering 300 500 750

5.3.73 Work with leather-pressing, rolling, polishing 750 1000 1500- inspection, classification and sewing 750 1000 1500

5.3.74 Coal processing- grinding, filtering, washing 150 200 300- classification (conveyor belt) 200 300 500

5.3.75 Steel mill II- forgery 150 200 300- lamination:

hot lamination, cold lamination 150 200 300

manufacturing of piping, bars and wires 150 200 300

-plates:galvanizing, cold lamination 150 200 300

- machinery room 150 200 300

- inspection:black plates, laminated plates 300 500 750

galvanized plates and other treated surfaces 300 500 750

5.3.76 Sugar mill- grinding, mixture, simmering, transportation 150 200 300- centrifugal machine, purification, filtering 300 500 750- color inspection 750 500 750


7/27/2019 NBR 5413 English

21/21



- storage 100 150 2005.3.77 Milk plants

- sterilization, pasteurizing, bottle storage, milk jugs washing,cooling installations, cream separation 150 200 300

-bottle classification 150 200 300- cleaning machine inspection 300 500 750-bottling inspection 300 500 750- weighing area 100 150 200- scales 150 200 300- laboratories 300 500 750

_____________