220 After closing the light switch, the ceiling conduit and fixing bolts sparked, but did not trip

Updated on Suspended ceilings 2024-06-11
2 answers
  1. Anonymous users2024-01-24

    The main reason for not tripping is that the switch is a single P type circuit breaker (the possibility of the switch being too large, generally not more than 20A), it is recommended to replace it with a single P protector with leakage, which can allow the electrician to shake the ground insulation with a shake meter.

  2. Anonymous users2024-01-23

    If there is a short circuit, the empty opening configuration is too large, and it will not trip. It's dangerous. It is best to choose one with leakage protection.

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