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Program overview

In recent years, with the continuous development and wide application of electronic technology, the technology of hand-held electric tools is becoming more and more mature. While pursuing excellent performance, countries have higher and higher requirements for its electromagnetic compatibility, the corresponding standards are also constantly updated and improved, and the threshold of product certification and recognition is higher and higher. It is necessary to study the electromagnetic interference of electric tools and put forward some suppression methods.

Application document

Main criteria

CISPR 14-1/GB 4343.1

CISPR 14-2/GB 4343.2

IEC 61000-3-2/GB 17625.1

IEC 61000-3-3/GB 17625.2
《Electromagnetic compatibility requirements for household appliances, electric tools and similar appliances Part 1: emission》

《Electromagnetic compatibility requirements for household appliances, electric tools and similar appliances Part 2: immunity》

《Electromagnetic compatibility requirements for household appliances, electric tools and similar appliances Part 2: immunity》

《Electromagnetic compatibility limit limits the voltage change, voltage fluctuation and flicker of equipment with rated current ≤ 16A per phase and unconditionally connected in the public low-voltage power supply system》

Test items

EMS test item 6

? Electrostatic discharge immunity, contact discharge 4KV, air discharge 8Kv
? RF electric field radiation immunity, maximum test field strength 3v/m
? Electrical fast transient burst immunity, maximum test level 1kV
? Surge (impact) immunity, maximum test level 2KV
? RF conducted disturbance immunity, maximum test level 3V
? Voltage sag, short-time interruption and voltage variation immunity, according to iec61000-4-11
? The low-frequency immunity of harmonic, inter harmonic and grid signals at the AC power port shall be in accordance with iec61000-4-13

EMS test item 6

? Conducted disturbance voltage, 150khz-30mhz, qp/av
? Disturbance power, 30mhz-300mhz, qp/av
? Click sound, 150khz-30mhz, QP
? Radiation disturbance (toys only), 30mhz-1ghz, QP
? Harmonic current emission test according to IEC 61000-3-2
? Voltage fluctuation and flicker test according to IEC 61000-3-3

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