GB/T 32038-2015Monitoring and testing method for energy saving of illumination engineering (English PDF)

5.2 Testing items

5.2.1 Electrical parameters of monitoring and testing for energy saving of illumination engineering include voltage, current, electric flux, power factor, power, harmonic current and other indicators.

5.2.2 When monitoring and testing the electrical parameters, the illuminance, luminance, uniformity ratio of illuminance, uniformity ratio of luminance and other illumination indicators shall be tested at the same time.

5.2.3 The geometry and reflectance ratio on the illumination site shall be tested.

6.1 Monitoring and testing conditions

6.1.1 The illumination system starts totally, and operates normally for more than 0.5h.

6.1.2 No interference from natural light and other external light sources.

6.1.3 No significant shielding in the testing area.

6.1.4 The voltage on illumination circuit shall be no greater than 105% rated voltage, and no less than 90% rated voltage.

6.1.5 The damage or failure ratio of the illumination device shall not exceed 2%.

6.1.6 If the illumination system is equipped with power-saving device, the working conditions of which shall be indicated in the measurement conditions.

6.2 Monitoring and testing equipments

6.2.1 Monitoring and testing instruments shall be verified by the relevant state

7.2 Measurement of illumination indicators

The calculation for measurement of illuminance, luminance, uniformity ratio of illuminance, and uniformity ratio of luminance in tested room (area) shall conform to the relevant provisions of GB/T 5700.

7.3 Measurement of electrical parameters

7.3.1 The measurement of electrical parameters shall be carried out at the switch of power supply circuit.

7.3.2 The measurement of total illumination power or electric flux shall be carried out in the following methods.

a) When the power supply circuit is mixed with other electrical equipment, t hey shall be disconnected during the testing period; when other electrical equipment can't be disconnected, measure the power or electric flux when all equipments are started or only non-illumination equipments are started; the difference between the two measurements shall be regarded as the power or electric flux of illumination system in the tested room and site.

b) When the power supply circuit supplies power to the illumination system of several rooms and sites, the power or electric flux of the illumination system of each room and site can be obtained through the ratio between the illumination installing power and total power of the line multiplied by the circuit power or electric flux.

c) When the above measurement method can't be achieved, adopt single-lamp method to measure the power of single or group of luminaire in the tested room or site one by one; then add up them to calculate the total power and electric flux of the illumination system in the tested room or site.

7.4 Calculation of lighting power density

The lighting power density (LPD) in a site or area can be calculated as per Formula (1) and (2). ... (1) […]