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  1. WellWhatHadHappenedWas

    Primary injection testing on 800 amp breakers?

    Thank you all for your input I really appreciate all the help. I'll look into this further to determine if this is testing we'll need to outsource or if we'll need to order some more test equipment. Also just a heads up to mparenteau (Mike), I'm stealing the saying "This topic has as many...
  2. 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...
  3. 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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