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neutral

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  1. C

    Neutral - Earth link in Main Switchboard

    When is an earth neutral link required in an main switchboard? Is it particular to the earthing system? Is it common to earth the source neutral at the first point in the LV system where the neutral is terminated - the main LV switchboard. If the Neutral terminal of the transformer is...
  2. C

    Transformer Neutral Grounding

    Should the neutral of the transformer be provided with separate ground rod or can it be interconnected with earth bar which also connects the transformer frame and other equipment frame grounding. Is it correct as per the European standards? ( See the attachment)
  3. Michael J

    Green neutral anybody seen this before?

    Haven’t seen this before
  4. S

    Using earth as neutral

    We’ve pulled in a 185 cable just and realised that we need a neutral. It has 4 cores, brown, black, grey and earth. Can we use the earth as a neutral if we shrink wrap it with neutral sleeve and then run an earth separate? It’s a tri-rated cable, so no armoured to use as earth.
  5. I

    No earth in single pvc pvc neutral

    I've been working in Birmingham for a couple of weeks and I am coming across a single neutral cable from the cu to each light point then the line is also a single cable with a earth to each switch then to the lights it must be from the 60s .It does seem to be the norm . My problem is that...
  6. V

    hager invicta 3 - rcd incomer neutral

    hi about to install a invicta 3 , hager 3 phase board. the neutral on the board is on the left, yet the 4 pole time delay rcd i am going to use has the N labelled on the right hand side of the RCD, so with the copper incoming kit links it won't fit? are there Hager version rcds with neutral on...
  7. L

    New light fitting 2 live 2 neutral

    Hi everyone There are 2 light fittings to change in the living room I've changed the one at the back that was just twin and earth These light closest to the. Switch has two brown and 2 blue Can I put these in together in each block for the New fitting
  8. J

    RCBO - What would happen if I didn’t connect the neutral of the RCBO?

    Please can someone tell me what would happen if the neutral of the RCBO wasn’t connected would the circuit still work ?
  9. C

    Electrician Jobs Neutral required for smart wall switch

    I would like to install a smart switch in my bedroom, there is currently a 2 gang switch for the spotlights. I am happy to change it into a 1 gang and use the other cable for neutral. If that is possible. There is access to the wiring in the loft. Cost?
  10. Savdar1810

    3phase RCCB used no Neutral

    Question for someone... recently inspected a 3phase 415v supply socket and noticed it's protected by a 40amp 30ma rccb... Income supply only has 3phases and earth and on socket side requires neutral... Surely this RCCB isn't doing it's job if the neutral is not fed through protective device...
  11. K

    Advice wanted on neutral to earth

    Hi Just wondering if anyone can help me out. Is it possible to get 0.03 to 0.09 m amps on a clamp meter on copper water pipes when an appliance is plugged in and the unit attaches to hot water copper pipes via a metal braided hose? On 2 x units the first unit had external damage with messed...
  12. A

    Neutral wire not connected

    Hi my electric shower light stayed on after is turned it off. I took off the pull chord and firstly there is only one nuetral wire connected, looking at the contactor in the loft it looks like the neutral wire has been cut short. So there is a live and neutral from the fuse board, and only one...
  13. A

    Neutral wiring problem

    Hi on my electric shower pull chord/isolator there's two lives and only one neutral. In the loft on the contactor the neutral wire isn't connected to it. The light is staying on on the pull chord. This can't be right, I'm presuming the neutral wire should be connected at both ends from the...
  14. B

    Bad neutral on extraction fan?

    Hi all I've recently moved house and the extractor fan was not working, I've replaced the fan with a 240v extractor fan and wired up to my spotlights that are also 240v but for some reason the fan doesn't work. I've ran a new cable, tried 2 different extractor fans and definitely have 240v on...

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