Category Recommended Illumination (Lx) Toilets, changing rooms, hot water rooms 5-15 Stairwells, cold storage, warehouses 10-20 baths (slit), foot treatment rooms, general passenger rooms 20-50 Grand foyer, ticket office, Non-staple food shop, snack bar, kitchen production room, bath 30-75 restaurant, repair shop, food market dyeing shop, photo studio business hall, food shop, watch and clock shop, bank cashier hall, post office, business hall 50-100 barber shop, Bookstore, clothing store 75-150 calligraphy and painting shop, department store 100-200 Remarks: 1 For department stores with high design standards, it is recommended to install key lighting. When it is necessary to check the vertical illumination of the shelf, the recommended vertical illumination should not be lower than 50Lx. 2 Local lighting should be provided at the checkout counters and repair stations of banks, post offices and other work stations. 3 Photographic special lighting, when using a general negative film (such as black and white full-color negative film and color negative film with a sensitivity of 21), it is required to be no less than 500lx in the photo area. Its light is mainly composed of light, auxiliary light, background light and contour light. According to the individual and the group photo, the main pole lighting is used. According to the collective phase, the main, auxiliary, and illuminating are mainly fixed lights. A low-voltage 24-36V socket for local lighting should be provided in the 4-foot treatment room. 5 The illuminance of the lighting in the counter should be one level of the recommended illumination in the table. 6 The self-acquisition store business hall should raise the recommended illumination level in the table by one level. Illumination standard for building facade illumination Building or structure Facade feature Average illumination (Lx) Environmental condition Appearance Color reflection coefficient (%) Bright shading white 70-85 75-100 50-75 30-50 Bright color 45-70 100 -150 75-100 50-75 Intermediate color 20-45 150-200 100-150 75-100



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September 18, 2018