The report defines seven specific criteria to determine if an assembly passes an internal arc test:
An advanced design feature where live parts are insulated to reduce the probability of arc initiation. Arc Proof Assembly: iec 61641 pdf
The main purpose of IEC 61641 is to protect personnel and enhance the durability of assemblies. It covers: Personnel Protection: The report defines seven specific criteria to determine
No holes larger than specified limits should appear in the outer enclosure due to burning. iec 61641 pdf