external

  1. B

    external temporary lighting

    looking at putting out some external Christmas lighting. I have bought 2 rcd plugs, 2 twinsockets with weatherproof housing boxes. I know its a silly question but as I say its temporary lighting and im trying to be as safe as possible and its been a good few years since I was last at school thus...
  2. 1Justin

    External PMR to horticulture, - back-up earth electrode or not?

    I have been asked to do some maintenance for a small co-operative horticulture set-up. They operate on a shoe-string, and have a couple of hectares of land in a low-lying flat area. The DNO has given them a PMR system with a service head and meter in nearby woodland. (Ze 0.23). I find a 30mA...
  3. P

    External Meter tails Help

    Hi Guys went to look at a friends house he has just bought, at some point the CU has been moved from just behind DNO board to 6 meters away using 10mm T&E as a temp feed loose cliped inside. The Outside cabinet has the meter head in with 25mm tails going to an isolater switch and the temp feed...
  4. G

    External earth fault loop impedance Ze

    ​Can any one explains what are the three methods to find External earth fault loop impedance Ze please?
  5. L

    external earthing

    Hi, Try and keep this short as possible. Now referring to tncs my understanding is suppliers don't like the earthing to be exported externally in case of the loss of earth. So its to be treated externally as a TT system, all well and good. My question is would it not be better to use the...
  6. 3

    mounting a new 3 phase supply external cabinets and fire switch

    This is my first post take it easy on me:charming: I am building a single story timber frame workshop. its going to be timber clad also. The local supplier is western power. I had a quote from them and although the workshop is literally a few hand tools and offices they insist on putting in a 3...
  7. D

    Fuseboard in external meter cupboard

    I was doing a job for a landlord at his tenants house and was aked to have a look at the fuseboard whilst im there to as he wants it changing. Asked the tenant where the board was and he said it was in the external meter cupboard. I thought he was a bit mistaken by what i meant but it actually...
  8. cliffed

    External lights

    got a call from the boss yesterday bout 1.00,just relaxing having a break, he phones,a fault at a hotel,can u sort it.So drove for 90 mins & arrived at a big hotel,greeted by a panic manager,car park lights keep tripping a 20 mcb.This was about 3.30pm,a wedding was taking place & a wedding &...
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