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  • Users: tpmc
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  1. tpmc

    Is it legal to build room within a plant under an existing Buss rail?

    Hello, I was recently handed plans that show an existing buss rail with buss plugs feeding equipment. I'm being told they are going to build an inner office under the buss rail. They will install a drop ceiling on the room with insulation above the tile. The buss rail will be about 1(one) ft...
  2. tpmc

    Liquidtite hanging from a j-box in the ceiling to peice of equipment

    Hi everyone, I have seen Liquidtite (LFMC)type EF hanging from a j-boxs vertically in the ceiling down to peices of equipment in Industrial plants. Some are up to 30 ft long. Just doesn't seem secure or good practice. I know the 2005 code states in article 350.10 shall be permitted to be used...
  3. tpmc

    Connect Acuvim L series power meter using modbus to a pc

    I was given a Acuvim L series power meter. Was ask to install the unit on a switchgear to monitor power. That part is done. Now I have been ask to connect the unit to a PC. Found it requires modbus RTU. There is a 3 terminal connector to connect to the unit. I beleive I would need a serial...
  4. tpmc

    Odd voltage to ground

    Hello everyone! I have a 3 phase 208v buss with no neutral or ground (using case ground). I have a Buss plug connected with 3 phase wires (lets say A,B,C)& a ground wire going to a transformer. The transformer is 240v primary - 208v secondary. Were back feeding the transformer as we have 208v &...
  5. tpmc

    Transformer/Panel install & grounding

    I have been ask to install a 240v 3 phase panel. I have a 3 wire 208v 3 phase buss, no neutral or ground other than the frame. I installed a buss plug have the conduit ran to the transformer, also from the transformer to the new panel. Ready to wire. I plan on connecting the 208v feed to the...

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