Specification for classrooms lighting designin Chinese primary and middle schools and kindergartens -2020

Table 1, standard values of classroom lighting without visual display terminals in primary and secondary schools:
 

Room or place	Maintain average illuminance (lx)	Glare value (UGR)	Color rendering index (Ra)	Reference plane And its height	Illuminance Evenness	Maintain vertical illuminance(lx）
Ordinary classrooms, dedicated classrooms, public teaching rooms, etc.	≥300/≥500	≤16	≥80	Class desktop	≥0.7	-- /≥ 200
Art classroom	≥500	≤16	≥90	Working surface	≥0.7	≥200
Laboratory	≥500	≤16	≥80	Experimental desktop	≥0.7	≥200
Writing board	--	--	≥80	Writing board	≥0.8	≥500

 Table 2, standard values of classroom lighting in kindergartens without visual display terminals:

Room or place	Maintain average illuminance (lx)	Glare value (UGR)	Color rendering index (Ra)	Reference plane And its height	Illuminance Evenness	Maintain vertical illuminance(lx）
Activity room	≥300	≤16	≥80	Ground	≥0.7	--
Special classroom (except art classroom)	≥300/≥500	≤16	≥80	0.5m level	≥0.7	-- / ≥200
Art classroom	≥500	≤16	≥90	0.5m level	≥0.7	≥200
Multi function activity room	≥300	≤16	≥80	Ground	≥0.8	--

The illuminance of the neighboring surroundings within 0.5 m of the working surface in the horizontal area may be lower than the illuminance of the working surface, but it should not be lower than the provisions in Table 3.

Ground

Table 3, the relationship between the illuminance value of the surrounding illuminance of the classroom lighting in primary, secondary, and kindergarten and the illuminance value of the work surface

 

Illumination of working face (LX)	Illumination near working face (LX)
≥750	500
500	300
300	200
≤200	≤200

 

The characteristic of the light source color table should be the intermediate color, and the color temperature should be 3300 K-5300 K. The target value of the chromaticity coordinate is shown in Table 4. The initial value of the chromaticity coordinate should be the target value of the chromaticity coordinate 5 SDCM (standard deviation of color matching) within.
 

Under the conditions of meeting the glare restrictions and light distribution requirements, high-efficiency lamps should be selected, which meet but are not limited to the following requirements

a)   For lamps with replaceable light sources, the efficiency of the lamps should not be lower than those specified in Table 4.
b) The efficiency of LED classroom lamps should not be less than 80 lm/W
c) The efficiency of LED writing board lamps should not be less than 70 lm/W

 Table 4 lamp efficiency with replaceable light source
 

Type of light outlet	Lamp efficiency	Remarks
Open type	≥75%	Suitable for writing board lamps
Transparent cover	≥65%	Suitable for writing board lamps
Grid grid	≥62%	Suitable for general classroom lighting

 

Lamps and optical appliances meet but not limited to the following requirements:

a) Directly open lamps (except LED panel lamps) or ordinary grid lamps with shading angles less than 30° shall not be used for general lighting in the classroom;

b) The light-transmitting panel material should have anti-UV characteristics;

c) The reflector material should adopt high-quality mirror-faced anodized aluminum plate;

d) The surface of the material should be sprayed with anti-static film;

e) The reflector material can also use other green environmental protection, high-tech and other materials, but its reflectivity should reach 85% or more;

f) Reflective grille of grille lamps and lanterns should be chrome-plated on the surface, bright and clean.

 

 

For LED lamps, the initial value of the general color rendering index Ra should be no less than 90, and the special color rendering index R9 should be greater than 50.