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steel

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  1. L

    Main bonding at outbuilding

    Hi all, I have a commercial premises (school) that requires installation of main bonding at a block which is an outbuilding from the main school. Now the bonding in the main school is 50mm, however the cable feeding this outbuilding is just a 25mm 4core. So what size should I be using...
  2. S

    Warehouse 2G socket

    Hi guys, just quoting for a job in a warehouse (steel frame). They want a 2G socket in the middle of the warehouse floor between vehicles. No option of chasing out the concrete floor. So are there any products available to hang from the perlins or RSJ's somehow? Any ideas? Thanks, Ad.
  3. M

    Fixing modules to box profile steel roof sheets - new fixing product

    Hi has anyone used Schletter's ClampFit-H product for fixing modules directly to the roof sheet - see below: ClampFit-H product for landscape mounting on a trapezoidal roof sheet. This is a rail-less fastening system, which incorporates a module clamp integrated into the fastener. No rails...
  4. B

    air con units in a steel shipping container.

    hi,im about to embark on installing some power in a steel shipping container,im going to use a Schneider 6 way board rcd main switch.there are 2 air con units going in here but onlt one will be running at any one time,the other is purely as a back up if one fails, both rated at 5kw cooling and...
  5. V

    Bonding Structural Steel on farm building, TN system?

    On a TN system , i want to bond the structural steel on a farm shed. But the submain across to the farm shed is only 10mm Twin and Earth, so only a 4mm cpc is supplied? I was going to install a 10mm cpc to the steel from the local shed db? any help please.
  6. D

    Steel Galv in Chased wall

    Hi there, What would you recommend? Working on a new build where we are chasing block walls to fit steel conduit to feed outlets as per spec. The ceiling is roughly 4.5 m high and therefore the drops are quite long and as its steel, will be quite heavy. To support the drops, I was thinking of...
  7. B

    steel wire armour as an earth?

    Hi another quick question please, Can you use the steel wired armouring on a 16mm 4 core cable as an earth?, as I think I have read somewhere that you can only do it but only up to 10mm sq. Thx Bigfoots
  8. M

    FOR SALE Electrcians tools and toolbox

    All in virtually new condition on used in about a dozen jobs. Milton Keynes or surrounding area- collection. 23” Stanley Fat Max tool box Ultra-strong structural foam, large capacity case with unique IP53 rated waterseal. ¾ length tote tray for easy storage of larger items. 4 Piece...
  9. Tuttle

    RFC in Steel Conduit

    I plan to install steel conduit (used as cpc) in a garage / workshop. I intend to run the conduit in a complete loop around the garage, i.e. starting at one point, going around all four walls and then back to the point at which I started. I want to do this because it makes wiring easier, i.e...
  10. K

    DNO specifies fire-rated enclosure

    The DNO (UK Power Networks) has specified that the duct that will carry the DNO supply to a new SFH has to terminate into a 1-hour fire-rated cupboard. The duct will terminate in the basement, and the supply will be 3P 100A each. Which pre-made cupboards would meet the required specs, or if we...
  11. M

    Steel conduit

    Did the 2394 written exam found it fairly simple enough. I hope haha got a question come up about steel conduit it said a steel conduit system needs to be check before any cable is installed name five checks you would carry out and what you are doing by doing each check? just wanna see if...
  12. shanky887614

    Drill chuck - which brand to buy?

    ive been looking for a while for my drill makita bhp451 because the bits are falling out etc. would this rohm be any good or would i be better off going for a jacobs? Rohm Twin Sleeve Steel Keyless Chuck RV 1/2" x 20 : Tooled-Up.com
  13. uksparks

    Power to outbuilding, possible structural steel...

    Hi, I have just been to a job today to provide power to an outbuilding, 75 meters down the garden. The supply is PME, I plan on splitting the tails into a henley block and then into a switched fuse, then 16mm SWA from there all the way down the garden, at 600mm under the lawn. The building is...
  14. SJD

    How to change from conduit to T&E in celing void

    Scenario: In an old house, the main fuse board is next to the supply intake, which feeds sockets, cooker, immersion. For the lighting, there is a separate sub-board in the centre of the house, fed by a 2.5mm T&E distribution circuit from the main board. This 4-way sub-board is antique, cast...
  15. the pict

    galvanised steel

    Whats best to get a good earth grind it off and re-paint or bolt to the surface, is galvy a good conductor ? trying to weld it would suggest it aint \pict
  16. G

    Steel Wire Braided cable

    The situation - Cables were laid in a customers garden ready for lighting and power installation a few years ago by some other electrician but never finished. We've been called in to finish the job. As a trainee, I've been told by my boss to try and figure it out before work commences, but I...
  17. 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...
  18. J

    Tool for cutter the steel wire of SWA cable

    Hi everyone, I was thinking that it may be quicker if I cut the steel wire straight instead of junior hacksaw and twisting method. But I was wondering how hard is the steel wire in SWA cable! Is it similar to piano wire? I guess snips will always do the task, but can I use side cutter or...
  19. Marvo

    Steel conduit wall thickness

    I'm hoping a few of the older members might remember this. I need to know what the standard wall thickness used to be for the very old type threaded steel conduit (20 and 25mm equivalents). I'm guessing the diameter and wall thickness was in imperial sizes so I also need to know what the...
  20. vxwestie

    Stainless steel surface sockets

    Im looking for a quanity of surface metalclad dual sockets with conduit entries, but in stainless steel. Can anyone point me in the right direction?

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