Introduction to electromagnetic compatibility testing of lamps

With the rapid development of China's real estate market, civil home lighting is becoming more sophisticated and mature after continuous market cultivation, and home lighting demand is showing a rapid growth trend. Electromagnetic compatibility problems associated with the high growth of luminaire products have also caused electromagnetic pollution problems to the environment. Electromagnetic pollution, water pollution and air pollution are called the three major sources of pollution in today's society.

Relevant standards for electromagnetic compatibility testing of lamps: CISPR 15 corresponds to national standard GB17743, EN 55015

Radio disturbances in electrical lighting and similar equipment are specified in CISPR 15, which mainly correspond to the following three indicators:

1" insertion loss;

The measurement frequency for insertion loss ranges from 150KHz to 1605KHz, and its calculation formula is 20lg(U1/U2)dB, where U1 and U2 are input voltage and output voltage, respectively.

The measuring equipment is as follows:

2" disturbance voltage;

The disturbance voltage is divided into the voltage measurement of the power terminal (9KHz-30MHz) and the voltage measurement of the load and control terminals (150KHz-30MHz)

The measuring equipment is as follows:

3" electromagnetic radiation disturbance

Electromagnetic radiation disturbances are measured at frequencies ranging from 9 kHz to 30 MHz, and receive measurements of radiated disturbances through loop antennas.

The measuring equipment is as follows:

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