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60950-1 resistance to abnormal heat test

EMengineer

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#1
Hi everyone,

We have a discussion about resistance to abnormal heat test (EN 60950-1).
The requirement is that thermoplastic parts on which parts at hazardous voltage are directly mounted shall be resistant to abnormal heat.
How the part "directly mounted" should be interpreted?
We have power supply whose PCB is glued on the enclosure and mains parts could touch it. Does the enclosure need to be tested?
The appliance inlet passes the test and it falls within the definition of direct mounting. But what about enclosure? There are no directly mounted mains parts on it but they could touch enclosure anyway. Or such PCB mounting could also be considered as direct mounting?
 
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