earth

  1. L

    Earth bars interconnected hager

    Hello, Just wondering, can two separate earth bars in a consumer unit be interconnected with a 10mm earth cable, or is it necessary to create an entirely new earth bond? Also, what are the pros and cons of each option? Many thanks in advance.
  2. J

    UK Main Earth and Gas Bond

    Folks need advice. House I am working on. TT earthing. The rod is closer to the gas pipe/meter box than the Consumer Unit. I wondered why I could find no bonding conductor in the CU. It appears someone took the Main Earth 16mm cable from the earth rod to the gas pipe and then onto the Consumer...
  3. A

    How to identify presence of an earth electrode

    Hello to all you fine folk out there. I have a question regarding earth electrodes. I've had two periodic inspections/EICRS recently, where I haven't been able to locate the earth electrode. I am guessing they are installed but have possibly been covered over by new patio extensions and other...
  4. J

    Metrel Earth Electrode test - current injector clamp and measure clamp - can i use on domestics TTs?

    Hi Have to say Meterel not been very helpful here. Has anyone any experience of using the current clamps on domestics where you cannot get your current and voltage stakes in the ground near the property? I have a project where it is TNCS, in very rural area prone to loss of Neutral. I have...
  5. timhoward

    Ali-express DY4100 Digital Earth Tester

    Don't worry I haven't gone (completely) mad. About a year ago a ride-on-lawnmower became over-friendly with my long RE test leads while I was drinking tea inside. I needed some replacements for a job next week so I was about to shell out nearly £100 for a new set, and then a thought crossed my...
  6. C

    Best earth leakage clamp meter

    Hi all I want to get a good and reliable earth leakage clamp meter, been looking at the megger DCM305E which looks good but was wondering what other peoples opinions are? I don’t mind spending the money on a good one rather than getting a cheap one and getting inaccurate readings or no longevity.
  7. H

    UK Earth bonding to Water

    Greetings, I am homeowner and looking to confirm if I will need earth boding to water pipes. There is already earth boding near Gas meter and the gas copper pipe enters the house. Water main supply is via blue plastic pipe (MDPE) which then connects to plastic pipes and also some copper pipes...
  8. P

    Earth resistivity testing in wet ground

    Hi. The question is..... can saturated ground affect earth resistivity testing equipment? Some days there's an unacceptable earth reading, another day it'll be perfect. The only variable seems to be the weather - ie very wet. I've asked northern powergrid to convert to a PME system but they say...
  9. Mike Johnson

    Digital Earth Resistance Tester

    I have a PeakTech Digital resistance tester for sale, still in it original packaging, never used, cardboard box is a bit shop soiled, but the equipment is still in new condition anyone interested I will take £65.00 for it including postage: PeakTech 2700 - Digital Earth Resistance Tester 3 ½...
  10. R

    5 amp earth leakage?

    Hi all Suggestions please. I’m working on a 3 phase shop install with a bunch of typical circuits. As each cct is energised the earth leakage rises to around 5 amps! It’s a PME supply via SWA with main earth coming from the armour. I’m pretty sure it’s not the individual ccts or appliances...
  11. A

    Insulation resistance testing live conductors to earth

    Hello all, I hope you're all keeping well. I have a question regarding insulation resistance testing. Whether doing a single circuit IR test or a global IR on an entire installation, I usually try to remove all loads, eg lamps, neons etc, but obviously this isn't always possible. So I...
  12. S

    EICR in Flat - cross-connected circuits, T&E tails, composite earth

    I'm practising EICRs on friendly locations as I'm still in training - technically done my 2391-52 but frankly need loads more practise. I've just done an EICR on a flat and a few things that I didn't know how to code/address came up: 1) How do you code (and look for) inter-connected circuits? I...
  13. S

    Lots of earth leakage from ovens

    Hi all, There's 2 single fan ovens in the house my mother recently moved into. Posh elecronic AEG units. It's been sat empty for a year, so the oven elements will have had a chance to accumulate some moisture. There's a dual RCD consumer unit, the ovens are on separate RCDs. One of the ovens...
  14. S

    UK Amtech/Trimble - Excessive Earth Loop Impedance on SWA cables

    Hi All, I'm new to Amtech/Trimble and I've been asked to review a model. I'm looking at circuits that are SWA cables using the armour and an internal conductor as the CPC. There are various earth loop impedance errors listed where the Zs at the load end is too high, but what I can tell, Amtech...
    • Steve W
    • Thread
    • cables cpc earth earth fault loop impedance impedance loop loop impedance swa
    • Replies: 4
    • Forum: UK Electrical Forum
  15. qwea44

    Switched earth to relay?

    Hello folks, So my van got found after being stolen ;D Now I'm installing my own alarm on the van which is triggered when a door is opened. Im stuck with this though; for the open door trigger i need a 12v when the door is opened (Or 12v when door is closed) I attached the switched earth cable...
  16. P

    Should this fitting be bonded to earth

    I have had these lights installed by a contractor whose work is normally very good. He has not connected the earth in each fitting as there is a class 2 sticker on the metal back plate. He argues that it does not need to be earthed. The manufacture did not supply a bolt for the Earth terminal...
  17. E

    Smart Switch without Earth Terminal

    Hi, I've bought a "yagusmart" smart switch from Amazon and it has no earth terminal. Although there are no metal facing parts I would think the device itself still needs an earth? Or if not, where do I put the earth cable? It is a plastic back box with no earth terminal. There is no indication...
  18. HappyHippyDad

    Why on earth is this happening?

    A friend's partner has an interesting fault, if it is a fault. She sets the shut down timer on the cooker and when the timer goes off (which in turn stops the oven from working), the TV screen in the other room turns black. This happened perhaps 2 times out 10 when trying to re-enact it. The...
  19. P

    Soil earth resistance survey

    Has anyone here got experience of doing a soil / earth resistance survey for the design of a large-ish site? We might be looking at a fenced area of 150 x 40m or so with possible need for lightning protection and/or input to the decision to have the substation within the site or far enough out...
  20. MaintenanceSpark

    Three Core & Earth

    Silly question I'm sure, but I'll ask anyway. On a 2 way lighting circuit the black and grey conductors get sleeved brown to show they're line conductors and I'd like to know why as black and grey are line conductor colours anyway so surely if the grey isn't sleeved blue it's a line and if the...
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