earthing | Page 9

earthing

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  1. J

    Acceptable TT earthing resistance for EV point

    I understand that some vehicles do a check on the earthing resistance before they allow themselves to connect to the charging point, so irrespective of whether the earth resistance is in line with the regs, it may not be 'acceptable' to some vehicles. Does anyone know what value of resistance...
  2. C

    Non CE lighting without earthing

    Good evening, The wife decided we should have a row of Victorian style cast iron lamp posts up the side of our house. As the dutiful husband I went off and did some searching and found a company selling fairly well reviewed products. Fast forward a few days and the item is delivered, a...
  3. S

    Generator Ze test

    Evening everyone, Looking for a bit of advice with generator earthing/testing. An 80kva generator supplying a small site with a few portacabins. I am aware that the genny needs an earth electrode with an Ra lower than 20ohms as per bs 7430 tested with an electrode tester.The chassis bonded to...
  4. S

    Canal barge earthing

    I have been asked about the best way on the earthing of a canal barge. I believe there is a unit that gets installed between the hull and the DB any advice on that and other info would be much appreciated I have never been in involved in boat installs . C.I.A stuart
  5. R

    DNOs attitude towards earthing!

    I find this statement from the UK power networks official website so amusing I couldn't resist sharing it. For a domestic electrician, the connection to earth is thought of as one of the most critical electrical safety features. This is what they tell their customers: "It's worth noting that...
  6. C

    Earthing neutral in a multi source system

    This has me clueless. Why must the neutral be unearthed at the transformer and generator and only allowed earthing at the switch-gear? I can't see any reason because the neutral will normally not be carrying any current and thus no parallel current paths would form.
  7. B

    Earthing sockets in Bulgaria

    I am about to install new wiring for a kitchen here in Bulgaria. I will be using a 2.5 ring final circuit for the sockets and 6 mm radial for the cooker. Wiring to sockets here in Bulgaria is done by using twin cable (no earth line). The earthing is done by connecting the earth and neutral point...
  8. K

    Earthing and Bonding question

    I need someone to enlighten me about Earthing and Bonding. We've just completed the construction of four Fabricated Steel Bay Structures with a total of 354 Stansions 102 Beams, all connected to the Porlins, the place is to be used to seat 120,000 persons. I am not in doubt of the importance...
  9. C

    Shed Feed (Hypothetical)

    Say you had to feed power to a shed/detached garage in the UK with a sub unit inside it. How would you go about the earthing? What earthing arraignments can be used at the shed if the home is: TN-S TN-C-S TT And do you always need an earth rod at the shed?
  10. B

    Solar Panels Earthing for a shed running a solar panel on the roof

    Intend putting a solar panel on a shed roof just to run a few lights and maybe a socket outlet to charge drills etc. What do I do about an earth? I used to have a caravan that had a solar panel on the roof and standard 3 pin sockets inside. It never dawned on me how does one get protection in...
  11. D

    SWA sheath, earthing and empty consumer unit space

    Hi all I had some house rewiring undertaken on my house and have come across a few issues since painting. First thing was damage to the rubber outer sheath of the SWA cable on the outer wall which I've rapped electrical tape around temporarily as the metal rods were visible and we had a lot of...
  12. The apprentice

    earthing of steel trunking

    hi guys just bare with me please still learning lol! if i have connected my steel trunking to the metal frame work via bush and cuplin and and the steel frame is earthed and i can prove continuity from my trunking to the steel work do i still need to earth my steel trunking and also do i need...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...

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