Room or place Reference plane and its height Illumination standard value (Lx) Ra living room General activity 0.75m horizontal plane 100 80 Writing, reading 300 bedroom General activity 0.75m horizontal plane 75 80 Bedside, reading 150 restaurant 0.75m dining table 150 80 kitchen General activity 0.75m horizontal plane 100 80 Console mesa 150 bathroom 0.75m horizontal plane 100 80 Note: Mixed lighting should be used Commercial building lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra General store business hall 0.75m horizontal plane 300 twenty two 80 High-end store business hall 0.75m horizontal plane 500 twenty two 80 General supermarket business hall 0.75m horizontal plane 300 twenty two 80 High-end supermarket business hall 0.75m horizontal plane 500 twenty two 80 Cash register 0.75m horizontal plane 500 - 80 Library building lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra General reading room 0.75m horizontal plane 300 19 80 Reading rooms of countries, provinces and cities and other important libraries 0.75m horizontal plane 500 19 80 Old age reading room 0.75m dining table 500 19 80 Zhenshan and the reading room 0.75m horizontal plane 500 19 80 Showroom, catalogue hall (cash hall) 0.75m horizontal plane 300 19 80 Library 0.75m horizontal plane 50 - 80 Workshop 0.75m horizontal plane 300 19 80 Office building lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra Ordinary office 0.75m horizontal plane 300 19 80 High-end office 0.75m horizontal plane 500 19 80 meeting room Actual working surface 300 19 80 Reception room, reception 0.75m horizontal plane 500 - 80 business Hall 0.75m horizontal plane 300 twenty two 80 design room 0.75m horizontal plane 500 19 80 Document sorting, copying, distribution room 0.75m horizontal plane 300 - 80 Data archive 0.75m horizontal plane 200 - 80 Hotel building lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra customer room General activity area 0.75m horizontal plane 75 - 80 bedside 0.75m horizontal plane 150 - 80 desk mesa 300 - 80 bathroom 0.75m horizontal plane 150 - 80 Chinese restaurant 0.75m horizontal plane 200 twenty two 80 Western restaurant, bar room, cafe 0.75m horizontal plane 100 - 80 Multifunction ground 300 twenty two 80 Foyer, general service desk ground 300 - 80 Lounge ground 200 twenty two 80 Room floor corridor ground 50 - 80 kitchen mesa 200 - 80 laundry room 0.75m horizontal plane 200 - 80 School building lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra classroom Class desktop 300 19 80 laboratory Experimental desktop 300 19 80 Art classroom desktop 300 19 80 Multimedia Classroom 0.75m horizontal plane 300 19 80 Classroom blackboard Blackboard 300 80 Hospital building lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra Treatment room 0.75m horizontal plane 300 19 80 Laboratory 0.75m horizontal plane 500 19 80 Operating room 0.75m horizontal plane 750 19 80 Clinic 0.75m horizontal plane 300 19 80 Waiting room, registration hall 0.75m horizontal plane 200 19 80 Ward ground 100 twenty two 80 Nurse station 0.75m horizontal plane 300 - 80 pharmacy 0.75m horizontal plane 500 19 80 Intensive care unit 0.75m horizontal plane 300 19 80 Exhibition hall lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra General exhibition hall ground 200 twenty two 80 High-end exhibition hall ground 300 twenty two 80 Note: Ra in the exhibition hall above 6m can be reduced to 60. Sports building lighting quality standard value category GR Ra No color TV broadcast 50 50 Color TV broadcast 50 80 Note: The GR value is only available for outdoor sports venues. 3. Industrial construction Industrial building general lighting standard value Room and place Reference plane and its height Illumination standard value UGR Ra Remarks Universal room or place laboratory general 0.75m horizontal plane 300 twenty two 80 Additional local illumination fine 0.75m horizontal plane 500 19 80 Additional local illumination test general 0.75m horizontal plane 300 twenty two 80 Additional local illumination Fine, color requirements 0.75m horizontal plane 750 19 80 Additional local illumination Measuring room 0.75m horizontal plane 500 19 80 Additional local illumination Substation Power distribution unit 0.75m horizontal plane 200 - 60 Transformer room ground 100 - 20 4 , public places Public place lighting standard value Room or place Reference plane and its height Illumination standard value (Lx) UGR Ra hall ordinary ground 100 - 60 High grade ground 200 - 80 corridor, ordinary ground 50 - 60 High grade ground 100 - 80 Stairs, platforms ordinary ground 30 - 60 High grade ground 75 - 80 escalator ground 150 - 60 Toilet, bathroom ground ground 75 60 High grade ground 150 80 Elevator lobby ordinary ground 75 60 High grade ground 150 80 lounge ground 100 twenty two 80 Storage room, warehouse ground 100 60 garage Parking room ground 75 28 60 Repair room ground 200 25 60 Note: The lighting standard values ​​of power stations and substations in residential and public buildings are selected according to the table. 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2. Public buildings
(Lx)
Flow area
Domestic lighting standard value reference
1. Residential buildings
Residential building lighting standard value
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