earthed

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  1. P

    Bonding non-protective conductor conduit

    Recently qualified and started working for a company that don't put a fly lead from socket outlets to back boxes and ceiling roses to conduit boxes etc. The engineer says you don't need them because the circuit has its own CPC and the conduit isn't being used as an earth. My understanding was...
  2. L

    DC fuse blowout

    I was asked earlier this week to look at a solar system on an office/warehouse that had stopped working (not my install). The strings all come into a Fronius DC box on the roof. When I opened it up it was pretty clear why the system had stopped producing: I'm looking for opinions on what may...
  3. R

    Replacing security light fitting

    Hi Guys, I need to replace my halogen security light fitting with one that is LED and also comes with PIR. As this is a swap, am i allowed to do this myself based on current regulations? If so can you recommend a good security light fitting with PIR? I have looked at a few online and went on...
    • rs6mra
    • Thread
    • earthed fitting light lighting replacing security without
    • Replies: 5
    • Forum: DIY Electrical Advice
  4. uksparks

    Old BS7671 Books

    Hi, I have just purchased a 16th Edition and a 15th Edition BS7671 book both in excellent condition. I am looking for a 14th and 13th edition if anyone has one they don't want. No particular reason that I want them other than to look in and to have sitting on the shelf as it would be a nice...
  5. J

    Should coaxial back boxes be earthed?

    Also, should the flexible aluminium ducting of an inline ceiling fan be earthed?
  6. robd

    EICR SWA not buried.

    Hi All, Just writing up an EICR I did today, got a long garden with SWA feeding shed at bottom, armoured not earthed (code 2) but I also noticed for part of it's run, near the veg patch, the SWA is lying across the ground. It doesn't meet 522.8.10 so I'm guessing code 2 and a recommendation...
  7. K

    electric shock from floor to earthed metal sink

    hi all electric shock from old brick floor layed on soil, to earthed out kitchen sink 0.68ohms earth loop reading. in a 400 year old farm house connected on p.m.e. its been happening for a month (since rain) any ideas why and how to over come? ta kipper,
    • kipper
    • Thread
    • earthed electric electrical floor metal shock
    • Replies: 2
    • Forum: The Welcome Forum
  8. D

    Testing RFC in earthed steel conduit...

    Excuse my ignorance on this, never had to test a RFC when the conduit was being used as the CPC. Obviously can't do the usual test for continuity so can't tick that box on the form, will just note that it's an earthed conduit set up. Where I get more confused is the R1+R2 measurement seeing as...
  9. C

    Un earthed lighting

    Hi all, as has frequently been pointed out the customer is always right!!!! The lighting is on the old twin (no earth) and according to customer I can just attach some new cable to this for his new lights he wants putting up in different locations. In my eyes morally and professionally wrong as...
  10. G

    Exposed metal work

    Does the metal support framework of a mezzanine floor require bonding to earth.The electrical installation trunking is fixed to the underside of the framework,so in effect it is earthed already via the network of trunking and metal conduit fixed to it(any advice)
  11. D

    Anyone read this book "An Illustrated Explanation of Earthed Equipotential Bonding"

    http://www.amazon.co.uk/Illustrated-Explanation-Earthed-Equipotential-Bonding/dp/1449041612/ref=sr_1_sc_3?s=books&ie=UTF8&qid=1363822682&sr=1-3-spell Apparently its terrible. Check out the reviews they are pretty funny........im quite tempted to buy it just to see what they are on about lol
    • Ducksy
    • Thread
    • anyone bonding book earthed equipotential
    • Replies: 11
    • Forum: UK Electrical Forum
  12. E

    earthed fuse board.

    I found this fuse board at work. The main earth appears to be clamped to the side of it then run down to the main earth terminal, not sure why this has been done or if it is common as Im fairly new to the game. If anyone could help that would be great.
    • evansjrraves
    • Thread
    • board earthed fuse fuse board
    • Replies: 19
    • Forum: UK Electrical Forum
  13. 1Justin

    tails in zone, run through wall without earthed conduit - OK?

    Meter on internal garage wall, and CU just the other side internal to the house. Currently there is no mechanical protection on the ex. tails where they go straight through the wall. I need to fit replacement tails. Can I safely assume it's OK and normal provided that I keep them in zone where...
  14. J

    2 core cable to metal light switches

    Went to a flat recently where the cable is run through metal conduit to metal back boxes on a TN-S system. Built in the 60's the flats have aluminium strand cable that is sheathed by a braided woven material (vic cable?) and although old is serviceable. The matal conduit is earthed back to the...
  15. N

    Metal conduit as earthing - is that OK

    Hi, Just been to a block of flats - 1920's - testing the landlords lighting (that's all that there is communal area run off a timer, no switches for users). There's no earthing to the lights - although they're all out of reach - but I got excellent Zs reading as I guess all the earthing is...
    • Noddy67
    • Thread
    • conduit earthed earthing fittings metal separate
    • Replies: 40
    • Forum: UK Electrical Forum
  16. K

    extending a cooker circuit

    hi all quick question,cooker switch is behind the cooker,can i through crip it to extend it,cover it with a blanking plate then come out left or right off it to re position the switch in a safe zone.no rcd there on a tight budget ?# many thanks for your help
    • kellogs64
    • Thread
    • circuit cooker earthed extending protection switch
    • Replies: 17
    • Forum: UK Electrical Forum
  17. B

    Earthing conduit boxes

    Is there anything in regs to say that conduit boxes should be earthed where there is an electrical connection Ii.e. klix unit
  18. D

    ZS in a PME earthed household

    Please be gentle with me it's been a long day. In my previous life I was an electrician, suppose I still am but not practicing installation work. So I am trying to get up to speed with some modern practices, mainly Earth Loop Impedence. In my daily work I constantly use a megger for safety...
  19. Y

    Why VT Secondary Yellow phase is earthed?

    Hi all, I have a scheme in which the Y-Y VT secondary yellow phase is earthed. and is fed to a 2watt meter energy meter. can you explain why this is done so. regards, kannan
  20. M

    armoured cable should it be earthed

    hi everyone first message on here, im sure it is simple to mst people,i need to know if the outer metal strands on an armoured cable MUST be earthed. it is from the board to a garage at the bottom of the garden and the earth is run in the black cable, neutral in grey and live in brown or red...

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