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  1. General Electrical Discussion
    Lighted-when-off switches seem to have the light close the circuit when the switch is open. That said, If I wanted to protect against a short circuit, can I insert a 2nd load between a circuit in series? For example Power supply + to Main Load + ... Main Load -- to Dummy Load + ... Dummy Load --...
  2. General Electrical Discussion
    Short circuit on a 20A lighting circuit and it shut down the whole building!! What would have caused this to happen? Why did none of the other breakers in the series trip? Guessing the trip settings on the existing main were dialed down way too low? Needless to say, my guys had a stressful...
  3. Residential Electrical Forum
    Symbol I'm trying to determine if this is an actual short or an intentional thing. There are two fuses in my home's fusebox that both seem to control the same circuit. Only one of them can be on at a time. When we try to turn on both, the opposite fuse breaks. I've tested all of the related...
1-3 of 4 Results