and earth

and earth

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  1. holmestm

    Should the armour of an SWA carrying twin and earth cables also be earthed (with banjos etc)

    I have an existing installation extended in 2015. The existing cable had 3 cores and used the armour as earth, with connections soldered onto the SWA gland where required (e.g. in external sockets). At the point the extension was added the contractor took the armoured earth and connected it to...
  2. ak247fox

    Can i use 6mm twin and earth with wago 5 way to wire up a double plug

    I had to replace a surface plug socket box after the plasterer destroyed the old stuff. It has black, red and earth wire, 3 of each and look quite thick (the earth wire looks like it should be used for barb wire abd isn't covered) Sticking all of that into a new faceplate isn't working so well...
  3. Mark Wright

    Twin and Earth American style

    Can anyone tell me more about Twin and Earth American style? What's it's full name? NM? Is it always flat? Do you add a sheath to the ground/earth cable? Thanks 😊
  4. K

    Terminating a live twin and earth inside a wall.

    Hi guys I'm looking for some advice. I have recently removed a wall socket that we no longer need, and have wrapped the individual Live, Earth and Neutral wires in electrician's insulating tape, and then wrapped the end of the whole cable in insulating tape, before cementing it back into the...
  5. T

    Induced voltage on twin and earth cable

    Why would I be getting 94v between cpc of twin and earth terminal at DB? Connected into rcbo with the other end 3 cores separated, nothing connected.
  6. A

    3 core and earth on a light fitting

    Good evening. My son in law has moved into a 5 year old house with a conservatory. There is a 3 core and earth lighting cable poked through from the house into the conservatory which has never been attached to a light fitting. There is only ONE switch serving this light NOT two. My question is...
  7. B

    Safe zones and Earth cables

    I've been told I need to upgrade the main earth bonding to 16mm. The consumer unit is on the wall adjacent to the externally mounted incoming supply box - I basically need to run the earth wire down the corner about 1m and then across the side wall about 30cm then through and into the back of...
  8. M

    twin and earth cabling size for commercial buildings

    Hi, The current carrying capacity tables in the BS 7671 for twin and earth cables are only for buildings that have thermal insulation. I'm working on a commercial building, the inner walls do not have thermal insulation, what can i use for the current carrying capacity of the cables. The...
  9. A

    Correctly closing off a dead twin and earth cable in a loft.

    Correctly closing off a dead twin and earth cable in a loft. My old house used to have radial circuits serving night storage heaters. Those radials came from a dedicated consumer unit in the garage which has now been removed and all cables from it are now dead. Each night storage heater was...
  10. Algarve Sparky

    Off grid solar and earth return

    So despite living working in a country blessed with 300 days of sunshine I have not got my head around this solar thing, there is very few companies here who know what they are doing and buy off the shelf kits and rarely do they perform as sold and in many cases unregistered ones actually...
  11. S

    EICR coding twin and earth tails/riser

    Not unusual in townhouses that have been converted into flats round here to see all the meters in the basement, each feeding a switched fuse spur that then feeds 16mm T+E to each flat. Obviously that's a run of tens of metres, concealed in walls etc with no RCD protection. Guessing it was...
  12. Marcus Vaughan

    Coding question - Twin and Earth Tails

    As above really. First time I have seen this but its basically 16mm twin and earth connected straight into the outgoing side of the meter, and into the consumer unit. Quality. Couldn't quite get a picture of the external MET but can confirm an additional cable has been added to bring the size of...
  13. G

    Multi-core neutrals and earth

    Hi, I am currently training to become an electrician. I have passed all relevant C&G level 2 exams along with C&G level 3 inspection and testing and principles of electrical science. I have been asked to help design some garden circuits but been given specific instruction on how the circuits...
  14. K

    Using 7 Core Armoured as Twin and Earth ?

    My daughter has some 7 core armoured cable running to her garage which looks to be 1m2 or possible 1.5m2. It carries a 2-way external light switch connection to switch on 2 external lights ( house and garage) from either the house or the garage, and there is also a single 13amp socket connected...
  15. oracle

    Cooker connected to unfused connection unit with 6mm twin and earth

    Today I found a free standing cooker connected with T&E cable. Since the cooker is bordered by cupboards it is regularly pulled forward about a metre for cleaning the unit and the floor beneath it. This forward movement extends the cable to full stretch while pushing it back makes it hang in a...
  16. S

    Is Wickes twin and earth any good or should I get Prysmian?

    It's for my house
  17. T

    Voltage between live and earth

    I've finished rewiring the upstairs in our house (in Bulgaria). This is 3 bedrooms and the living room on separate ring mains. I bought an earth rod and put that in the yard and as I was connecting up the earths, I decided to check if there were any voltages between various points. With the...
  18. G

    Ceiling light only have one two core and earth cable

    Hello all I am trying to replace a light and add a bathroom fan to the ceiling light. But when I removed the old light there is only one cable coming from the attic. I replaced the light in the same way that the older one was but I'm confused as there should be a switch wire going to the light...
  19. S

    Twin and Earth riser - buried in the wall.

    Putting a new CU into a flat. The riser is protected by a fused switch (immediately after the meter). The riser is in 16mm T+E i.e non armoured. I can't see it anywhere so it must be within the fabric of the building Is this a non compliance?
  20. Karin

    Potential Difference Between Neutral And Earth

    evening guys, i think i'm gonna need this one spelled out to me a little if anyone can help. everytime i think i've worked it out i just start to doubt myself and go in circles! double pole isolation is required for TT but not TN systems where neutral can be said to be reliably connected to...

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