earthing

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  1. C

    Solar Panels Barn Earthing for Solar, 80 Meters from Cut Out

    I’m installing 20KW of Solar on my Barn roof, The barn is fed from a 3 phase supply originating at the house which is 80 meters away. I’ll be installing some 35mm 4 core to minimise the losses to <1% volt drop between the barn and the point of supply located at the house. The Earthing at the...
  3. HappyHippyDad

    portable generators and earthing?

    A customer has asked me to install a generator to supply her house for when they have a power cut. I have already said this is beyond my capability and I will definitely not be taking the job. However, I'm interested in understanding it a little better. So you have the correct size live and...
  4. Peter55

    Earthing question - three phase into main building, then single phase to EV charger

    Hi there, new to the forum and in final stages of completing C&G level 3; need to complete design project to complete. Am struggling to get my head around how to draw up correct circuit diagram showing EF Loop path for EV charger where initial supply is described as 'three phase TNCS' feeding to...
  5. Jaqqqqqq

    Earthing rod garden moving

    Hello experts. I have a black cable running from the loft , up the garden, under the garden. Can I move the rod to a different part of the garden? The plug attached works and would be helpful to use. Any advice would be great thank you. UK.
  6. t01474

    Which Earthing type is this?

    What kind of earthing system do you think this is? Strikes me as TNS (Paper lead incommer) but the earth coming out of the head makes it look like TNCS??? But then again the earth is on the lead sheath too??? I was only there to have a look today so didn’t do a Ze. Strikes me as an odd way to go...
  7. impish15

    UK Black cable off supplier's incoming cable?

    Hi, Any suggestions what this black cable is coming off the supply's incoming cable? Its a TN-S system, I thought it could be the earth conductor but the cable is black not green/yellow, plus it looks much smaller than 10mm2 plus there is already an earthing conductor coming off the sheath...
  8. Blake1

    Earthing spike for upper Flat via flat ground floor

    Two flats, I live on ground floor, neighbours have just moved out from upper floor flat, lived there over 20 years. Spoke to new owner last weekend about possible issue with electricity could they check empty flat. Issue concerns high electricity bill, whereas previous owner paid half for their...
  9. D

    Main Earthing in Consumer Unit

    I am due to carry out an electrical job in a third floor flat. Incoming supply is TN-S. Cannot locate a main earthing conductor inside the CU on the earth bar, just the individual circuits CPCs. There are two earths clamped to the bottom of the metal CU, one disappearing down some metal...
  10. E

    Australia Equipotential Bond Current showing on Clamp meter earthing

    Hi has anybody come across current up to 3 amps showing on water bond? 0 volts, no amps on main earth just water bond? I put a clamp Meyer to check...
  11. B

    Earthing responsibility

    Hi all, Holiday village, brick built lodges circa 1960s. Supply is 35mm 4 core armoured, each phase and n comes in to Henley blocks and out to next unit, armour in/out terminated onto metal plate that also has a connection for earth to local consumer unit in each bungalow/cabin. 1 phase used in...
  12. K

    Earthing of standby generators

    Afternoon guys. Recently been asked to do a generator changeover switch for a friend it’s a 6.0kva standby generator . The earthing system is tnc-s . Just seeking a bit of advice with regards to earthing requirements as it’s a portable gen . Also it will be sitting on top of block paving . Can’t...
  13. M

    TNCS - Earthing connections

    Hi all, I am doing work atm in a block of flat were they have added on extra flats and I doing all the isolators and meter tails. The dno have supplied a 3 phase PME cutout. I am wondering in regards to the earthing connections if the dno will supply an earth bar or if it is up to myself to...
  14. L

    IT earthing system cable calculation

    Hello, Does anyone know if Trimble can be used for cable calculations for equipment with an IT earthing system? If not could you please point me in the direction of an example calculation if possible. Thank you
  15. _q12x_

    A Facebook question about Earthing and Grounding

    I find this question on Facebook: And I give it my answer already and I will post my answer that I already made for it. But I am curious what you guys will say first, without me influencing you with my answer. I am an artist, I am not an electrician or electronist. My relation with...
  16. HappyHippyDad

    Earthing requirements for a field?

    I am soon to install some weatherproof sockets and a commando socket in a field. This will be around 80m from an existing consumer unit in a barn. Earthing is PME. The commando socket will be for a cooler. The weatherproof socket(s) will be to plug in heating mats and cables (for soil). These...
  17. B

    Earthing arrangement for shipping container on building site

    I’ve had a shipping container delivered to my building site for use as storage/utility room/worker toilet. One side is insulated as it was previously used for exactly this, and it already has some fairly rudimentary electrics installed. On the previous site, their “groundworker’s electrical...
  18. Had8Lives

    Earthing and Battery supplied Inverters

    Hi All, When I heard reports on the radio of people not being able to run their gas central heating because of a power cut, it got me thinking. Is there any reason a gas boiler couldn't be run on an inverter and a battery? I was thinking there might be a potential issue with some ac making...
  19. D

    Swa earthing and coding

    Hi all, we have a much discussed topic. Swa and the earthing of the amounting through a fly lead. What your thoughts and how would you code an Swa cable, the amouring is the cpc and no fly lead been taken too the earth bar (the Swa been terminated into a metal container) So are saying code 3 as...
  20. banny07

    UK type of earthing syestem

    what type of earthing syestem ?
  21. E

    Mirror Demister Pads & Earthing

    Looking for a little advice and also hopefully some education :) Have recently bought a flat (for which warranty period has expired) which has two bathrooms that were delivered as 'pods' (assembled fully offsite and slotted in when the building was built). They have all sorts of problems...

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