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earth

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  1. R

    Wife Code for black pvc with separate earth run to socket?

    Morning all, I have been to look at a job this morning to rewire a radial feed supplying two socket outlets off a 20 mcb. The cable from the board is a black pvc 2 core cable(does not look like copper) and has a separate earth run back to the met. I am currently doing my 2392 and hope to start...
  2. R

    Earth bar clamps?

    Hi Do any sparks know of a product that will clamp better to earth bars at consumer units and accessories. I’m getting tired of my croc clips slipping off when testing, especially when trying to zs a light 3 plate. I’m thinking there must be something that will grip around the screw that I can...
  3. N

    Do I need to upgrade my earth bonding under my sink to pass EICR?

    (Rented property) The current bonding under the sink is 6mm - the electrician said it has to be min 10mm in order to pass the EICR. Is this correct? It looks like the wire has been there since the house was built and electrician said he would have to take a new one from the fuse box and somehow...
  4. captaincaveman

    Earth rod for floodlight spike?

    Sorry in advance. Didn't sleep well last night and my brain has haemorrhaged! Just designing power to a shed with 3 floodlights on the lawn from it (swa underground) and I was going to use some metallic spikes to bolt the lights onto but I'm thinking now that would mean an earth rod having to...
  5. dokkan1080

    Flats with 10mm twin and earth

    Seen loads of flats are fed from a 60amp isolator in 10mm twin and earth? don't they need to be 16mm tails and at least a 10mm earth? or is it just down to the adiabatic?
  6. mattg4321

    EICR code for inaccessible earth rod

    Come across this a couple of times recently whilst doing eicr’s. Everything all ok except there is no access to the (presumably) earth rod. The cable just disappears under a patio. Of course it may not even be an earth rod. It could be a plate or something. I’ve been giving these a C3 as I...
  7. I

    TT system, earth to neutral not tripping RCD

    TT system, Zs on socket circuit is 77.2 down a good bit after I added a second earth rod. When I short neutral to earth RCD doesn't trip. Can anyone help me out and explain please.
  8. A

    Confirming earth bonding continuity when cannot isolate supply

    Hi, just wondering how other sparks, go about confirming main earth bonding continuity when supply cannot be isolated, ze and pfc can be enquired wich is fine but what happens if you cant disconnect main bonding earth, is previous test results good enough to confirm?visual checks good enough...
  9. M

    How come some rcds dont trip when testing voltage to earth

    So I recently installed a new circuit to my loft as a dedicated burglar alarm and cctv circuit. When checking polarity and voltage with my test lamps/voltage indicators it didnt trip the rcd when testing live to earth and neutral to earth. It's an rcbo which works when using the functional test...
  10. G

    Should this light have an earth?

    Hi all I bought this light online, says it's suitable for 240V. The cable it came with only has live and neutral no earth, however as you can see in the pics it has aluminium brackets for mounting, it also has what looks like aluminium backing and screws but these feel like they're made from...
  11. W

    Fluke 1662. Earth spike test

    Hi all. First post. Earth rod question. All work I've done, as a recently qualified DEI has been on tncs. Have a new job with TT. Old earth rod is buried under concrete steps. So I have installed additional visible 2 m rod and run new 10mm earthing conductor. I have a fluke 1662 and recently...
  12. C

    UPS and earth?

    UK. Domestic computer setup with uninterruptible power supply - APC brand devices BK650EI and BK350EI. The manufacturer offers almost no information on earth and I presume that protected appliances are on their own independent circuit. Modest testing (ordinary multimeter) suggests there is no...

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