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What are the requirements of IEC 60335 -1 Annex B20.1?

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According to IEC60335-1:2020 annex B.20.1,IEC62841-1 Annex K 19.202.An enclosure for lithium-ion batteries shallbe designed such that it will safely release gasses that may be generated as a result for venting.

Test requirement:a volume of air of the amount specified in Table B.3 of IEC60335-1 shall be injected through a (2,85±0,05 or 2,87±0,05)mm diameter orifice into the enclosure at an initial overpressure of 2070kPa±10%.Test fittings used for the test shall not increase the enclosure volume by more than 3 ml.The overpressure within the enclosure shall drop below 70kPa within 30 s without any unintended rupturing damage to the enclosure.

ZLTJC ZLT-CJ8A Battery Housing Pressure Test Apparatus,conform to IEC60335-1 Annex B20.1,IEC62841-1 Annex K 19.202.

Battery Housing Pressure Test Apparatus

Battery housing pressure test apparatus IEC60335-1 Chemical Battery Case Pressure Testing Device Lithium-ion Enclosure Pressure Test Machine
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