steel

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  1. i=p/u

    insulation resistance testing stanless steel

    in a cafe at present working and is a load of stainless steel in one corner for washing up etc.. i want to do a test to see if needs bonding im nearly certain i I r test from earth isco to stainless steel in question and test @ 500vdc and if under 22k ohms it should be bonded, is this info...
    • i=p/u
    • Thread
    • believe earth insulation insulation resistance insulation resistance testing remove resistance steel testing
    • Replies: 9
    • Forum: UK Electrical Forum
  2. shanky887614

    which work boots?

    bought a set a of grafters a while ago after 2 months of apprenticeship they are falling to pieces what do you recommend? don't have a clue what to go for, am tempted by dr martens as ive got a pair of there normal boots and like em
  3. S

    Steel Work Light Battern Hanging Clips

    Have a job to do soon on my site to hange 8 light batterns in a boiler house from the steel guirders that form the roof. What are these clips called that will bite into the side of the guirder so that I can hang chain down to my light batterns? Thanks as always chaps Sky
    • SKY
    • Thread
    • always called clips electrical work light steel work
    • Replies: 2
    • Forum: UK Electrical Forum
  4. S

    Exporting PME to outbuildings

    Hi all, Just wanted to run this past some people, its for a little job im doing (possibly by moonlight). The property has recently (yesterday) been converted to PME when the DNO changed the cut-out. It is a farm and ususally around here they will not give PME to farms. The old service was TNS...
    • somersetsparks
    • Thread
    • building buildings earth pme steel structural
    • Replies: 6
    • Forum: UK Electrical Forum
  5. telectrix

    stainless steel

    something that has been bothering me for some time now. stainless steel is steel with approx. 7% -10% of chromium added to make it rust resistant, this is due to the chromium producing a molecularly bonded chromium oxide coat. al this i understand. what i can't get my head round is that it is...
  6. F

    light wait steel toe cap trainers

    whats the lightest pair of steel toe cap trainers youve had these boots are to heavy
  7. D

    Conduit Support

    Looking for some advice if anyone can help. I've been asked to install sockets in a new build business unit. The company deals with software imaging - lots of computing power but no machinery, tools, etc. The place is pretty much a standard build with a number of heavyweight vertical RSJ's...
  8. B

    what light switch is this?

    Hi guys, can you please tell me what this type of switch is called as im looking for a replacement in the screwfix catalogue and cant find one http://www.flickr.com/photos/39955962@N08/7494356112/in/photostream i think is a 2 way, 4 gang switch (has 2 seperate switches on the front. 4 ports...
    • beesley121
    • Thread
    • light light switch photo steel switch
    • Replies: 13
    • Forum: UK Electrical Forum
  9. G

    Ventilated trunking

    I'm working out a plan a house rewire where the supply comes into the garage. The trouble is that I dont want to just clip cables to the wall, the garage is not plastered so that eliminates the possibility of sinking the cables below the wall surface and placing the cables in conduit or...
    • Greg:
    • Thread
    • cables protection steel trunking wiring
    • Replies: 6
    • Forum: UK Electrical Forum
  10. J

    Best Hole Saws For Cutting Stainless Steel

    Hi guys, Quick question, I am looking for a hole saw that will will cut stainless steel again and again? For example, don't want to cut it once and not be able to use the hole saw again? Also, how much do these types of hole saws tend to cost? Thanks :-)
  11. J

    New build with steel webbed joists

    Hi Guys, Just had an email asking me to quote to wire some new builds, it said on the email that the Joists are Steel webbed and the cables will obviously need to be secured and clipped along these. How do you guys do this? is there a special type of clip or do u use a bit of all round band or...
    • J&M Electrical
    • Thread
    • build joists new new build steel
    • Replies: 7
    • Forum: UK Electrical Forum
  12. B

    Steel trunking capacity

    Hi Folks, Not been here for a while, hope everything's still good! Well, here it is; I'm trying to find the capacity for 75mmx75mm steel trunking. I'm pretty sure it's 45% full it should be, I' having problems proving it though! Can anyone tell me the reg number or tables referenced? I've...
  13. M

    Metal Conduit

    Hi, I have to use metal conduit in a domestic installation (wearhouse appartment). Im obviously going to have to do some conduit bending etc and I was hoping someone could shed some light on which conduit to use. The heavy gauge galvanised steel conduit looks a bit too heavy duty and looks...
    • mbow
    • Thread
    • black conduit looks metal someone steel you've
    • Replies: 13
    • Forum: Australia
  14. R

    steel metal beam in pit

    Hi guys Question would steel runners in a vehicle inspection pit require main equipotential earth bonding?? the pit is all concrete construction except for these metal running beams used for the wheel jacks – doing a test I get 0.01 MΩ Although there is no simultaneously accessible...
    • R4BOE
    • Thread
    • metal steel
    • Replies: 5
    • Forum: Australia
  15. S

    Arrrghhhh! I have a practical assessment and im struggling with steel conduit?

    i have a practical assessmet coming up and the problem im struggling with is the steel conduit. Well its a double set out of the C.U and its roughly 15-20 mm from back of conduit to the wall. im not using an angled ruler, the main problem i have is where do i put my second mark on the conduit in...
    • sammyjd
    • Thread
    • assessment conduit practical steel steel conduit
    • Replies: 2
    • Forum: Australia
  16. Amp David

    Fused isolator or not?

    Looking at a nice bit of work this morning which is a CU move and change. At the minute, the CU is burried in the back of a kitchen corner base unit, along with meter and cutout! Customer isn't willing to pay to have cut out and meter moved, but want the CU moving up into a nice and roomy 600...
  17. S

    Fixing panels to a barn with a concrete fibre roof.

    Hi Guy’s We have a contract to fix 50kW of panels to a barn roof. Having problems finding a suitable fixing/ racking systems to use without having to build lots of support under the roof. Eaves to ridge is approximately 14meters with 9 Z shaped steel purlins spaced equidistant between eaves...
  18. J

    2 way lighting fault - in steel conduit

    I was looking at someone's hall lighting the other day as neither of the fittings work. It's 2 way with 2 fittings in an apartment all wired in singles in steel conduit. There's power to & leaving switch A but no power at either fitting or switch B so there must be a cable break somewhere, only...
    • Johnny-G
    • Thread
    • 2 way conduit fault lighting steel steel conduit
    • Replies: 13
    • Forum: Australia
  19. B

    looking for a apprentership around manchester area

    Hi I'm currently at the oldham collage studying electrical installation level 2 I am doing my 206 practical exam tomorrow I'm highly confident I am going to pass. I am quite good in the workshop, I can do ring mains,one and two way lighting circuits of the top of my head I can also use steel...
    • ben_ford
    • Thread
    • area around conduit electrical electriians mnchester looking manchester steel welcome
    • Replies: 6
    • Forum: The Welcome Forum
  20. Mark42

    Large number of 13A sockets in a steel building: Design considerations.

    This weekend I’m installing 20 2-gang 13A sockets around the inside walls of my new 20m x 8m steel building. These are only for small car battery chargers, so total continuous load will be trivial. Plus one fused connection unit (directly in the ring) for the electric shutter at the far end of...

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