earthing

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  1. D

    What is my Earthing Arrangement?

    Hi, I'm currently installing a new consumer unit and I cannot clearly identify my earthing arrangement. (image attached) I am leaning towards TN-S but could potentially be TN-C-S as it is a unit installed in the 70's and doesn't match the drawings in the OSG. Any expert advice would...
  2. N

    Steel conduits acceptable for earthing in domestic property ?

    Evening Just been to quote for a consumer unit upgrade. Found that the board was from circa 1960 and wiring looked original also. No alterations have been made with exception of a few faceplates renewed in the kitchen. Red and black single cores going into an adaptable box at the back and...
  3. markocosic

    Preparing for EV charger: cable and earthing before driveway?

    Hi, Can I ask some advice on what to bury please? This is the the front of my house in plan view. House at the bottom. Porch at the bottom left. Driveway at the top. There's a fence between the driveway and the lawn. The incoming electricity supply runs underground down the left hand side of...
  4. N

    Earthing Arrangements ?

    I'm wiring up a wooden cabin and a double decker bus (been donated) for a local school. I've ran 2 x 10mm swa cables from the local 3 phase consumer unit to the underground trench to the bus and cabin. The question is would you make the Bus supply TT and the cabin (all wooden) and extension of...
  5. happysteve

    Is galv conduit containing insulated and sheathed cables (e.g. T&E) still an exposed-conductive part?

    Eh up :) As per the title, "Is galv conduit containing insulated and sheathed cables (e.g. T&E) still an exposed-conductive part?" Clearly, if it contained unsheathed singles, it obviously is. If it's not an exposed-conductive part (and it's not extraneous in the case I'm thinking of) then it...
  6. A

    Earthing and bonding new build

    Hi guys bit of advice needed to save me some time and money. Earthing and bonding required in new build property. 10mm earth to be ran to gas meter to clip to gas pipe that will enter property. This gas pipe then goes to a combi boiler where I will bond all pipes at combi to the gas pipe (gas...
  7. G

    2365 Level 3 Design Project. Volt Drop feed to Summer House and earthing

    Afternoon Gents, just a query regarding volt drop and extending the equipotential zone on a PME in the level 3 design project. In my design I used a 16mm armoured and the associated volt drop was 5v, this left 1.9 volts for the lighting ring in the summer house. Tutor said not to worry about...
  8. R

    Automatic Transfer Switch and earthing system installation advice

    Hi, I am planning to install a hybrid solar/wind power system. When it comes to 230V AC, I'd like to supply power to a home circuit with mainly LED lighting, It will draw probably never more than a few hundred watts. This circuit is connected on the main breaker panel to a 10A breaker,one pole...
    • rodv92
    • Thread
    • advice automatic automatic transfer switch earthing installation switch system
    • Replies: 0
    • Forum: UK Electrical Forum
  9. T

    Earthing.

    So I'm currently testing a system and was wondering what earthing documentations is needed/sufficient. The company I'm working for doesn't have any records so thought here would be the best place for advice. Using a low resistance ohm meter do I need to record measurements from the main...
  10. Pete999

    Earthing systems explained

  11. Pete999

    Pete's Videos Earthing systems explained

  12. Pete999

    Pete's Videos Earthing systems explained

  13. S

    SWA earthing

    I’ve seen debate in the past on here about whether to earth both ends of SWA at the glands even when using 3 core with a core as the cpc. My question is: If I gland the load end and earth the banjo there, then gland the supply end but run the 3 cores straight through the building skin so there...
  14. F

    Back box earthing

    Probably a bit of a noddy question but I am bringing my TV aerial cable into the house which I have already done. Now I want to fit a TV socket to the wall to tidy it all up. I have purchased a metal back box with a plastic TV coaxial faceplate. On the metal back box there is an adjustable lug...
  15. M

    Earthing an Outbuilding

    This is my first posting here - I am not an electrician so please bear with me. I am trying to establish the best method to provide earthing of a 60A supply to a new build garage / workshop to be taken from a domestic residence. The incoming supply to the house is TN-C-S with a supplementary...
  16. D

    Earthing arrangement

    Is anyone able to clarify with me how i can work out what earthing arrangement i have on site. Supply comes into one of our motor switch rooms from an 11kv to LV transformer located directly outside. I can see 4 big copper bars (3phases and neutral) coming in which will then feed off to the...
  17. L

    SWA gland earthing

    Hi all, Just having a chat with a customer who we do regular maintenance work for. They have had an extension and got another company in to do the electrics due to us not having the time. The main reason for the post is the installer has used self tapping screws on all the swa glands. Is there...
  18. M

    earthing system?

    having a slight disagreement with a maintenance guy on a job im testing... just a bit of banter, but can any confirm this earthing system..?!
  19. M

    Inverter earthing query

    I am looking at an Edcoa 2500 inverter which produces 230v pos to neg but half of that to earth. The installation is on a boat and the boat boiler is looking for 230v to earth. Can I bond the ac neutral to earth to acieve this? Thanks
  20. timhoward

    Multiple distribution boards and earthing arrangements

    Hi all, first post, and it relates to quite a challenging installation. The short version is that I'm working through remedial work on a 75 page EICR on a site with 24 distribution boards, hit a very nasty C1, have resolved it, but now have max Zs issues that were actually there before but not...

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