imperial

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  1. MaintenanceSpark

    Old Imperial Singles & Crabtree A15052 Switch

    Hi guys, I don’t really know where to post this, sorry if it’s in the wrong place. After posting a thread about old lead sheathed cable in my attic, Lucien gave me a very good history lesson on the cable which was very interesting and it gave me a big interest in old electrical cables and...
  2. S

    Size of imperial cable

    Afternoon all This is based on a previous thread I’ve worked on, carried out an assessment on site , found a imperial aluminium sheathed copper single supply cables measuring at 10mm diameter on the strands themselves , what size of cable does this make it? And what is the copper equivalent...
    • Storm93
    • Thread
    • cable cable calculations cable size cable sizing imperial size
    • Replies: 15
    • Forum: UK Electrical Forum
  3. S

    What size is this sheathed copper imperial cable?

    Hi guys , trying to determine the size of this imperial cable, 17mm diameter , what could the circumference be if it were double insulated? And what would be the equivalent cable now to use?
    • Storm93
    • Thread
    • cable cable calculations cable size cable sizing cabling copper imperial size
    • Replies: 19
    • Forum: UK Electrical Forum
  4. Dartlec

    Judging imperial submain T&E cable

    Doing an EICR on a top floor flat recently and run into an issue I often do - which is judging imperial sizes when they are larger than the standard 1/1.5/2.5mm equivalents. In this case, the flat is fed by a Twin and Earth cable that is somewhere around the 10-16mm range equivalent, with an...
  5. happysteve

    Imperial gland - thread size?

    I need to replace this mess with a switch fuse (not the socket, obvs). The pyro is imperial; IR is low(ish) but above the minimum. Estimated age is about 60 years. The only things I'm missing are a banjo and a locking nut. I'm pretty sure I can get a 25mm banjo on to fit, but what thread were...
  6. Strima

    Extending Imperial Pyro

    I've got a job where I need to move a DB, it's currently in a pub kitchen getting covered in grease etc and the location is right above hot surfaces, not an ideal place. The plan is to install new circuits in the kitchen, food prep and storeroom fed from a new DB in the storeroom. this will be...
  7. J

    Where can I get a imperial to metric pryro pot from, if one exists?

    Where can I get a imperial to metric pryro pot from, if one exists?
  8. HappyHippyDad

    When did they stop using imperial cable?

    As in the title? I am carrying out an EICR. The cable is predominantly imperial. I'm trying to ascertain the age of the wiring (roughly). When did they stop using imperial cable? Is there a train of thought with regarding rewiring properties with imperial cable? The global N-E is 1.91Mohms at...
  9. T

    Imperial pyro advice

    Can anyone identify what this is and what its current carrying capacity should be? Being a sprightly 41 imperial sizes aren't my thing and I can't find anything on the net. 2 core pyro about 13mm diameter, gland marked 465, seems to be about 10mm-ish equivalent. Backstory if you want it is...
  10. cliffed

    Existing imperial conduits to be removed

    Morning ,3 runs of conduit are in the way of a new door opening,they are imperial sized. They run from top to bottom of wall,then disappear into the solid floor to various positions.These will need to be found,& reinstated somehow,it’s not going to be easy,it’s a old building ,done the proper...
  11. cliffed

    Existing imperial conduits to be removed

    Morning ,3 runs of conduit are in the way of a new door opening,they are imperial sized. They run from top to bottom of wall,then disappear into the solid floor to various positions.These will need to be found,& reinstated somehow,it’s not going to be easy,it’s a old building ,done the proper...
  12. G

    Imperial Conduit Problem? Imperial Dies?

    Evening. I was wondering if anyone knew or has sourced Imperial metal conduit Dies? I have a job coming up in an old mansion house where there is existing imperial conduit drops down to a consumer unit location above a ceiling which is accessible through a large hatch right at the DB. The...
  13. G

    Electrician Jobs Imperial Conduit problem. Imperial Dies?

    Evening. I was wondering if anyone knew or has sourced Imperial metal conduit Dies? I have a job coming up in an old mansion house where there is existing imperial conduit drops down to a consumer unit location above a ceiling which is accessible through a large hatch right at the DB. The...
  14. M

    Size Guide for imperial aluminium SWA

    Evening everyone. Been a long time lurker on the forums but I need some help & guidance. I am about to do some work on a large industrial premises which the client wants to re-use the existing sub mains. After many discussions about replacing them they have decided to retain them. My issue is...
    • michaelg5
    • Thread
    • aluminium cable cables glands guide imperial might size swa
    • Replies: 20
    • Forum: UK Electrical Forum
  15. A

    Imperial cable

    Hi guys, Just after some info regarding old imperial 7/.029 twin and earth cable. Is the cpc in it 3/.029 or 3/.36? looking to extend a ring final circuit and have come across imperial stranded 7 strands 7/.029 and not sure if cpc is 3/.029 or 3/.036. Unfortunately not got measuring caliper yet...
  16. 7029 dave

    imperial to metric conduit couplers

    Hi all, just having a clear out, got 6 imperial to metric 20mm couplers, I believe you can't get these anymore, if anybody needs some I have them, will keep them back, pm me and will send for free.
  17. polo1

    Imperial question

    Apologies, blonde moment! Can anyone remind me what the sizing/thread was/is on imperial conduit lugs? Cheers Edit - would it be 2BA by any chance????
  18. S

    Micc conversion from imperial to metric

    Evening Gents, Does anyone has conversion chart for MICC cables Imperial to metric , I have to admit I am not an authority when it comes to MICC. Thanks Sparky 63
  19. D Skelton

    Repairing imperial mineral cable

    Last week I did a job for forum member joramtor. Link to the original post here: http://www.electriciansforums.co.uk/electricians-unite-jobs-your-area/87967-repair-micc-pyro-cable.html He had an underground mineral cable that had been severed by the groundworkers so off we went to sort it out...
  20. R

    Old imperial conduit/new board

    Wondering if anyone could help. in my own house i will be fitting an electric shower. There is no RCD on the board. This is a flat that was built possibly in the 60s and was wired using old imperial conduit with no cpc run for any circuit using the conduit as the cpc. I was thinking of updating...

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