supplies

  1. S

    PFC Three-phase supplies

    Can someone tell me how to correct measure Prospective fault current and external earth fault loop impedance (Ze) for a domestic property in Three-phase supplies! I use Fluke 1653 Thanks in advance :confused:
  2. M

    Boiler supplies

    Been on a refurb today and i've 1st fixed the kitchen, when the builder came this afternoon he said that the boiler supply needs to be on a dedicated circuit......... is this right? and if so why? Mark
  3. A

    2 water supplies into one flat???

    Some advice please... There is 2 water supplies going into a little flat side by side ( one supplying that flat and the other supplying a flat 2 doors down - was a shop but being converted to flats ) I have bonded at the little flat but what about the pipe which goes up to ceiling , runs in...
  4. K

    temp supplies.

    quick question for you guys, im putting in a temp supply to a cabin on a construction site. its a combind office/mess room container/cabin, type building. the board in there is rcd protected, so the sockets are covered etc. however the cable supplying the cabin will be a swa fed from an...
  5. M

    Need help with earthing DC supplies

    I have an issue where i need to earth a high powered supply from a 12VDC car battery to a control cabinet. I was wondering is it safe to run a grounding cable from an engine frame to the supply cabinet without causing any hazards or accidents? Can anyone help me to answer this?
  6. T

    Why do we have TT Supplies??

    Ok, been thinking about this for a while, and its gonna probably seem like a really dumb question, but why do we have TT supplies? Given that the supply transformer is star connected, with the Neutral coming from the star point, which is also strapped to earth, then the TNCS system is perfectly...
  7. L

    Online Line electrical Supplies

    I'm wanting to know where I can get cheap and good quailty electrical supplies which don't have too much delivery costs. List us some websites which you recommend please _________________________________________________ Ive noticed that screwfix.com seem to be very good value, compared to...

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