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  1. WellWhatHadHappenedWas

    Primary injection testing on 800 amp breakers?

    Does anyone do primary injection testing on large breakers, say around 800A? We have a test set that can inject 2000 amps but I would think that at that size of breaker we would need 3 to 5 times rated current to get it to trip quickly. I believe in the past for breakers around this size we have...
  2. WellWhatHadHappenedWas

    Looking for design standards regarding naming convention of signal/control wiring

    I'm trying to find a standard I can reference for naming wiring in an electrical design. I currently am looking at an electrical design for a powered gate submitted by a contractor and they haven't labeled any of the signal wiring used. It's not a crazy big install but I don't want to come back...

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