steel

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  1. mattg4321

    ‘Extending/enlarging’ steel trunking

    I have a potential job coming up where there is some 2x2 steel trunking that is completely overfilled and the lid is missing from various points. I need to add more cables on this run too ideally. Are there any clever products/methods out there to increase the size of this trunking to say 4x4...
  2. W

    Steel cleats for SWA

    do they do anything on the market for small SWA cabling yet?, only seen the strandard pvc cleats seen a few jobs where people have used 20mm black enamel conduit saddles instead lol!
  3. C

    SWA joint the steel of a 2 core

    Hi everyone, I have a 2 core 10mm2 SWA from a DB to a consumer unit to be joint. I know seems a silly question but how can I joint the steel of the SWA? Thank you
  4. C

    Steel Container

    A client has recently had a 10ft x 6ft Steel Cabin delivered. It will be a permanent addition for a block of flats outside for storing things in for contractors. They want a light inside and a floodlight outside. Currently next to it about 5 yards away is a bin store which has a light in it...
  5. h.abrar94

    How to calculate the resistance of steel armour under fault conditions 70 oC for CSA 95mm2

    Hi All, hope your all well. I was hoping if I can please get some advice in regards to SWA. In Particular using SWA as CPC. Cable size 95mm2 I have a table for SWA which shows various information, in the last two columns it shows the "resistance of steel armour under fault conditions at 70...
  6. happysteve

    Cutting neat notches in a stainless steel cooker hood chimney

    Eh up :) Is it possible to cut a neat notch - say arch shaped, with the arch diameter about 25mm - in a stainless steel cooker hood chimney, without either making a mess of the chimney, or breaking/burning out tools, or both? Special hole saw - or maybe regular holesaw used for steel - and...
  7. rsgaz

    Best tool for cutting(removing) stainless steel cable ties.

    Hi all, Just to be clear, this is not for cutting off the excess when installing stainless ties, I already have the Partex tool for that. I mean removing them at a later date, and not damaging the existing cables. Aviation snips are no good, you can't get the jaws in far enough to where it...
  8. mattg4321

    Sockets in a public place inside locked steel cabinet

    Been asked to supply 13a sockets to 2 positions round a sports facility. The expected load is small, but the length of cable run is fairly long. I’ll probably be using 10mm2 2core with the swa as cpc. They have had problems with kids etc gaining access after hours and fiddling with things etc...
  9. A

    Structural steel bonding clamps

    Hello All, I am working on a kitchen extension which has 3 Universal Beams bolted together which sit on block-work. There is no direct connection to earth. However when tested it has a path to MET of 2kOhm. As a result I plan to bond this steelwork. The design of the room means these beams...
  10. J

    Bonding steel conduit around plastic switch

    Any recommendations? I have 25mm steel conduit going into 20mm reducers feeding a plastic time guard switch and then returning to steel conduit again on the other side. An earthing nut is too chunky. I think I need those smaller flat brass plates you get on SWA cables. 1588093418 Found them -...
  11. W

    New Zealand should i earth my steel garage work bench to the power point next to the bench.

    Should i earth my garage steel bench top,it is constructed of timber but has a 3mm steel top,
    • wezel01
    • Thread
    • bench earth electrical work garage point power solid steel timber work
    • Replies: 11
    • Forum: UK Electrical Forum
  12. J

    Steel conduit in tight spaces

    I need to run a length of steel conduit. One end it will connect into a standard 25mm BESA box, on the other end, it will go into a sharp elbow. The conduit has to thread through a hole in the floor that is very close to the wall. If I thread the conduit through the hole and then place either...
  13. T

    Marking holes for steel trunking

    Hi, silly question but in College we only learned how to mark up holes for end caps. I’m just wondering what the standard practice is for marking holes in steel trunking for attaching couplers? The previous Electrician I was working with we used templates but there’s non on this site so i’m...
  14. T

    Persons experienced in steel conduit

    Good afternoon one and all Does anyone in the Dorset area have good experience with steel conduit? If so please could I pick your brains on a few things?
  15. G

    What Code for this one?

    What code would you attach to this gem, I gave it C2. These terminals are contained within steel trunking but are also part of a live 3 phase cct. See picture. It is installed as a 100 Amp 3 phase ring with these terminals every few metres. Distribution boards are connected from these terminals...
  16. K

    Earthing and Bonding question

    I need someone to enlighten me about Earthing and Bonding. We've just completed the construction of four Fabricated Steel Bay Structures with a total of 354 Stansions 102 Beams, all connected to the Porlins, the place is to be used to seat 120,000 persons. I am not in doubt of the importance...
    • KINGSLEY
    • Thread
    • bonding completed construction earthing question someone steel we've
    • Replies: 5
    • Forum: UK Electrical Forum
  17. The apprentice

    earthing of steel trunking

    hi guys just bare with me please still learning lol! if i have connected my steel trunking to the metal frame work via bush and cuplin and and the steel frame is earthed and i can prove continuity from my trunking to the steel work do i still need to earth my steel trunking and also do i need...
  18. N

    Steel conduits acceptable for earthing in domestic property ?

    Evening Just been to quote for a consumer unit upgrade. Found that the board was from circa 1960 and wiring looked original also. No alterations have been made with exception of a few faceplates renewed in the kitchen. Red and black single cores going into an adaptable box at the back and...
  19. S

    Bronze screws in stainless steel

    I'm installing stainless steel sockets in my new house and I'm wanting some contrasting bronze screws. I've installed stainless steel screws into bronze fittings before, and I really like the contrast. However, I don't want the screws to be a dirty brass colour, I'm wanting a bright, shiny...
  20. Soulcraft Electric

    BISF (British Iron and Steel Federation) prefab houses and main bonding

    Carried out a couple of EICRs on BISF prefabs and on both there is no main bonding to the steel frame of the building. My scheme technical helpline advised that main bonding was not required. Just wondered what people's thoughts are here? These are NOT pictures of the actual lofts (the roof...
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