steel

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  1. Z

    Steel conduit used as CPC in flat, can’t find bonding, can’t find ring main CPC at C.U

    I’ve been asked to add a couple of extra points to the single ring main in a flat. Building fabric is concrete, all of the electrical installation is steel conduit buried in the concrete. I opened the consumer unit and could only see one CPC for a radial socket, as well as the main Earth. No...
    • ZEDEZ
    • Thread
    • bonding c.u conduit cpc flat lighting main ring ring main steel steel conduit used wired
    • Replies: 11
    • Forum: UK Electrical Forum
  2. B

    Steel Conduit Bending Writen guide.

    Looking for writen guide to bending Conduit. All conduit bending guidance seems to be done through word of mouth. Looking for a writen guide even if ancient There must be something writen down with guidelines, angles etc. There seem to be US guides but nothing for the UK. Thanks.
  3. Q

    How to test a circuits in steel conduit as the cpc

    Good evening I am currently a training to become an electrician. I do hold both initial verification and periodic testing qualifications however this is an issue I have never personally had to deal with and was never mentioned on any of my courses as often seems to be the case. Basically I am...
  4. J

    SWA - earthing the steel wire?

    Hi I’m new to the forum & just a DIY’er! I’m running a 15m length of 2.5mm 3 core (twin & earth) SWA to our decking at the back of the garden for a double socket. Must the steel wire armour be earthed using the banjo or is the CPC core sufficient? Thanks in advance! J
  5. Jay89

    Steel Conduit bender 20/25mm

    After a steel conduit 20/25mm bender with clamp and formers etc. Happy to collect if anyone has one available, just north of London.
  6. H

    BILL15A TRI-LINK STEEL ISOLATING LINK BOX

    Hi I have one of these that was installed years ago to feed a garden pond using pyrex, what function does it perform and should it be replaced?
  7. D

    copper equivalent of steel

    Does anyone have the copper equivalent of a two core 16mm SWA to hand? Or the minimum SWA 2 core CSA in which the steel would be equivalent to a 10mm copper conductor? Don't have the info to hand. Thanks.....
    • Deleted member 9648
    • Thread
    • copper equivalent steel
    • Replies: 9
    • Forum: UK Electrical Forum
  8. cprfenom

    extending the earthing arrangement for a steel framed commercial building under 18th edition

    Hi Guys, This is my situation: Existing brick building demolished and replaced with steel frame, steel panel clad warehouse/storage structure. Original building had two electrical supplies: 1 x 63A single phase and neutral via 3 core PVC SWA PVC 1 x 100A TPN via 4 core PVC SWA PVC plus equal...
  9. gazdkw82

    20mm flexible conduit through steel

    I am running some flexible conduit within a 5mm steel box profile dwarf wall to feed socket outlets In a small conservatory. One of the sections is 2 box sections bolted together. The flexible conduit will run through this but I'm not happy with the conduit just pushed through. I was thinking of...
  10. J

    Looking for advice on this one if you can.

    Wondered if anyone can advise here please by any chance. When making a running coupler where one end of your steel conduit has a bend, so turning it to make a fixing would be impossible, it seems apparent that how ever way you do it you will be left with some thread left over on the steel...
  11. D

    Should a giant steel framed human aquarium be earth bonded?

    I have a large, portable steel framed tank. approx 6m x 2m x 2m. It is used for actors/models to perform in for a variety of productions. For many years now, I have had conflicting advice about whether or not it should be earth bonded. The initial response is "it's a giant steel structure, bond...
  12. R

    25mm galv conduit deta brand from tlc keeps bending with a flat back and wrinkles ?

    Iv used this bender for allot of 20mm galv jobs and its worked fine. Im currently doing a job that involves 25mm galv conduit so iv changed the former and steppes up the roller and arm into the appropriate holes. Every bend i do the conduit keeps showing small wrinkles at the start of the bend...
  13. N

    Steel Channelling vs PVC Channelling

    Sorry if this has been asked before, can't find it. Which one do you prefer using and why?
  14. DavidSpark

    Steel conduit - tips and tricks?

    Hello! Got a few jobs on the way that involve large amounts of conduit work. All surface mounted and will mostly be mounted externally around the building. I was just wondering if anyone has any good tips, tricks or good points to think about when doing it to be quicker and more efficient...
  15. S

    Induced Voltage LED / Steel Trunking

    Just fitted some 10 Low Bay Led all wired in steel trunking. Have just noticed my volt stick light up on 3 cables that are not even connected to anything. Gets volt meter out and I've got 38v on it. Seems a hell of a lot. Anyone else found this with LED power supplies
  16. D

    Running cable over steel beams below chipboard floor

    My builders have left a 20mm gap above the steel beams supporting the new first floor by setting the timber joists 20mm above them. Is it acceptable to run cables through the gap and over the beams? Cheers Dave
  17. andysparkfree

    95mm 4core SWA, just trying to go definitive on the steel to copper calculation

    good afternoon guys I have a 95mm 4 core swa to this new office build , thats fed via a new exterior mains panel located next to a new sub station. now all feed cables on this project have been designed by an independent company, and i currently have flagged up that i believe that using just...
  18. W

    Proving structural steel is bonded

    Carrying out some EICR on a commercial/industrial site. Previous records state the structural steel is bonded, and visually I can see 4x 25mm Earth wires leaving the main earth bar, I cannot trace the one going to the steel , though I suspect one of these does. How do I prove this? Is it a case...
  19. C

    Cannot Find Brushed Steel 45 Amp Cooker Control Unit - Vertical?

    Hi all, hope everyone is well. I'm looking for a replacement cooker control Unit similar to the one in the picture. I am after a brushed steel or satin one, but I cannot find one anywhere with these vertical dimensions. The tiles behind the socket have already been cut to fit this shape by a...
  20. J

    Conduit die set recommendations

    Hello, Can anyone recommend a good quality 20/25mm conduit die set? After looking online prices seem to vary quite dramatically. I Want something solid that will serve me for many years to come, Thanks Judd
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