earthing

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  1. E

    Electrostatic Earthing

    Looking for advice involved in Earthing & Bonding in decanting of Flammable liquids. Any electrician been hands on in chemical manufacturing .Thanks in advance.
  2. S

    summerhouse/shed supply earthing

    Hi guys, widely covered topic but still a lot a mixed opinions/interpretations. I have scoured the BS7671, on site guide and the internet is search of anything black and white. I'm not looking for somebody to tell me how to do anything, just some experienced opinions on what appears to be a...
  3. L

    Earthing am2 advice

    Hi guys can someone tell me what the triangle symbols mean on the earth bar as i terminated my water and gas 10mm bonding conductors into them and failed my am2 because of it ? Thanks
  4. N

    strange earthing problem (lighting)

    Right, so its been one of those long days. swift breakdown: top floor flat. lighting cable is single cores in a conduit system. was employed to install downlights in 2 rooms. Really bizarre one for me, ive never encontered nything like this before. So i tested the original fittings in these...
  5. M

    UK Earthing a V2G Electric Car Charger with a earth rod

    Hi I am new to the forum and looking for some advice. I was supposed to have a vehicle to grid car charger installed last week. But they couldnt get a suitable earth from the earth rod. The earth rod reasing was 384 ohms. They're saying I need a marconite pit. the reading has to be below 100...
  6. L

    Help with earthing circuit

    Hi everyone I'm a DIYer with little electrical knowledge looking for some advice I'm currently building a sterilisation cabinet with a UVC light in it. The cabinet is a Wooden box with a hinged lid I plan to use a microswitch to cut the uv lamp when the lid is opened. Am I correct to think I...
  7. M

    TT Earthing and Cut outs

    Installed a MK 18th edition duel board and went to test what looked like a TNS system but the ohms were 2-4. Had the supplier check for PME options but it reads .9, so they have told the customer get an earth rod installed. As we now have a metal enclosure needed and whether i install a 30mamp...
  8. N

    types of earthing to be carried out for 3 phase standby generator which is separately driven system

    3 phase standby generator of rating 30KVA is to be install in the lightning prone area. The utility main line is TT arrangement where neutral point is grounded with 3 phase and neutral wire provided to load system. A separately driven generator ( standby generator) is also needd with TT...
  9. P

    UK Earthing system

    Can somebody tell me what type of earth and where is it connected to ground. Can I have an independent earth bonded to ground for my Amateur radio equipment? Will this earth need to be connected to the domestic earth, if so can it be connected via an RF choke to prevent feed back to domestic...
  10. 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...
  11. 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...
  12. 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...
  13. 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
  14. 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...
  15. 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.
  16. 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...
  17. 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...
  18. 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?
  19. 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...
  20. 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...

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