More specifically you asked: China has now published GB4943.1 2022. However, the National Differences exclude wiring tested to UL 2556 and only wire flammability tested to IEC 60332-1 and IEC 60332-2 are acceptable. Given that UL 758 includes the relevant flame tests, will this standard be accepted in China?
In response, in the China national difference from IEC 62368-1:2018 in sub-clause 6.5.1, it states: “Delete the text of the Note “Wire complying with UL 2556 VW-1 is considered to comply with these requirements.
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Q&A: List of articles with CB scheme
For IEC 62368-1 and IECEE CB Reports to it, are IEC 60127-1 fuses required?
Given that the 2nd edition is more onerous, what is the likelihood of an agency such as UL allowing a 3rd edition relaxation in their 2nd edition certification?
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