metallic

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  1. L

    How to fit a metallic back box on a stud wall?

    Hey everyone, I'm trying to understand how to fit a metallic back box on a stud wall. Should it be fixed to a stud (on one of the sides) or is it expected to be fixed to a noggin? In either case, how would I know exactly where a noggin or a stud is, so that the hole I cut on the plasterboard...
  2. C

    Advice needed on replacing standard rose pendant with spotlight

    Hi electricians, I have bought a metallic 3 x spotlight to replace a standard rose pendant. The light is on the landing which can be operated by two switches. I've attached some photos below. I'd like some advice on how to wire this up. My plan is to: Connect the 3 neutral wires in the...
  3. D

    Metallic pipes and outbuildings!!

    Morning all. Couple of questions regarding the 18th in regards to outbuildings with metallic pipes in them, causing very different answers between a few of us in the pub! Right so. If a metallic pipe enters any building but has an 'insulating section' then it need not be earthed? I do not...
  4. Mark42

    Bonding metallic back boxes. Best practice?

    Something about the way this box is bonded feels wrong. I prefer the box to remain bonded even with the accessory removed. Is this method compliant? What do others think? (Ignore missing grommet) (Taylor Wimpey new build)
  5. J

    Non metallic PIR motion sensor security light

    I live near the coast & have had 2 metallic security lights. These have each corroded to the extent that the case could not be opened when the light failed. Can anyone suggest a non metallic security light fitting? Thanks
    • johnst
    • Thread
    • light metallic motion pir security sensor
    • Replies: 7
    • Forum: UK Electrical Forum
  6. A

    Bonding metallic pipework

    I have just been reading through a specification for a job and the Consultant has requested that exposed metal pipework is bonded, which is obviously fine, but it says that a connection is made for every 230m2 of floor area even though the metallic pipework is continuous. I cannot and have never...
  7. V

    Metallic pipe with push fittings

    If a metallic pipe work has push fit type fittings that dont provide electrical continuity what should be done A=Leave it as it is B=Increase the pipe size C=Bridge with a brown bonding conductor D=Bridge with a G/Y bonding conductor I was thinking A ? Thanks Last one then i can get my self...
  8. Goody

    Earthing metallic armour of SWA cable.

    I have connected the metallic armour of a 1 .5mm SWA cable (about 50ft run) to the met on the main CU using a 10mm earth cable. Is this a bit of an overkill or should I use 6mm earth cable instead? What calculation applies to determine the cross section of the earth cable in this case? Cheers!
    • Goody
    • Thread
    • armour aus cable earthing metallic swa
    • Replies: 4
    • Forum: Australia
  9. Goody

    Metallic Sheath on SWA cable should be earthed or not?

    Hi, I have a 3 core 2.5mm SWA cable connecting the main CU to the CU in the garage (30 ft away - detached). The garage’s CU has 100A main switch with 2x16a & 1x6a MCB’s for two radials and a light circuit. My question is, the cable already has an earth core but do I still have to terminate it...
    • Goody
    • Thread
    • aus cable earthed metallic sheath swa
    • Replies: 27
    • Forum: Australia
  10. B

    Metallic Conduit Installation

    Hi, Mainly i only do domestic installation, but sometimes i was asked to do small jobs for commercial properties. i noticed that most commercial installations use metallic conduit, is there any regualtions on whether it must use metallic conduit or just depends on electircians judgement...
    • bluesky
    • Thread
    • aus conduit installation metallic
    • Replies: 1
    • Forum: Australia

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