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  1. General Electrical Discussion
    Ok, so my school purchased a 208-240v input/output APC Uninterruptible Power Supply unit around 6 months ago. It came in on a pallet and was planned for use in a new building on campus. In back are 4 female receptacles for NEMA plug L6-20p. I'm not sure why it was purchased without 110v...
  2. Residential Electrical Forum
    I'm not necessarily an electrician, but I work with installing network equipment on a large scale. Normally I install devices in "telephone" company Central office facilities (the quotes are because the phone companies barely do phones anymore; most of the stuff is data equipment for...
  3. General Electrical Discussion
    Hey Fellas, I've got a question I was hoping someone could help me with. Is it possible to adapt a NEMA L6-30P to an L21-30P 3 phase plug? So there's an L21-30 receptacle and I have a PDU with an L6-30 plug on it, so I'm thinking a 1 foot adapter that goes L21-30P to L6-30R. I've done some...
  4. General Electrical Discussion
    Usually major manufacturers make them in three or more grades consisting of residential/cheapo, "spec grade", industrial grade, then hospital, isolated ground and other special purpose outlets. Does NEMA or ANSI maintain standards for "specification grade" or is it just a name with no solid...
  5. Other Codes and Standards
    Hi all, I am just curious. I have taken state license test and I remember one questions asking me about outside lighting being covered under what Nema specification in category I or II or 4. Anyone know the answer? Thank you. Martin
1-5 of 5 Results