phases

  1. trix

    fluke 1652 pfc

    Hi chaps, a friend of mine has quite a few Fluke 1652's , I myself always use Megger. My nephew now works for his firm, and uses as I do a 1552. On testing a block of flats he gets readings in excess of 17ka (low eli etc) His boss tells him the meter isn't giving the correct...
  2. H

    3 Phase Power in Computer Data Center

    Hi Everyone, I'm new to this site, but have a rather urgent question. I work as an IT Architect and as such I have a responsibility for our Data Centers. Our Data Center is fed by 3-phase power and it has come to my attention that our racks may be incorrectly wired. We feed two blocks of...
  3. S

    Perodic Wrong Type Fuse?

    Hi i have a perodic inspection with an old 3 phase wylex fuseboard with mcbs to bs3871 type 2 fitted the 3 phases are in rows ie banks of ten red/ yellow/ blue,there are a couple of 3 phase items fitted to board split between rows ie on single phase mcbs! Would this be a code 1? Any ideas,advice...
  4. S

    3ph board

    Hi guys, i was thinking if it will be OK to install 3x 10 way metal consumer units with 4 pole main switch instead 1 x 26 way 3Ph. Im trying to save some customer money, that will be similar to domestic installation, with some spotlights and sockets, smoke detectors, 1ph climate control. Rcd...
  5. B

    lighting on 3 phase

    keep coming across switching probs.where you have large area's of lighting spread across three phases,we used to use barrier sw/boxes apparently we don't need them now just stick a 415v label on the switch.Then you get the problem with multi gang switches with say three metal conduit drops and...
  6. L

    connecting 415v 3 phase motor

    i have replaced a 415v 3 phase motor at work. The old one had 3 terminals in a line, each with one internal wire connected, and one terminal on other side with 3 internal wires connected. The new one has 6 terminals, each with one internal wire connected. It came with 3 bridging links which i...
  7. P

    3 phase power

    how is 3 phase power 415v when each phase is 230/240v? I know its a stupid question but im not a spaks. Ta

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