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imperial

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  1. A

    Old imperial conduit box lid screws

    Any one know the size of the old imperial conduit box screws ?? I don't have callipers. They look to me like 5/16" screws any help appreciated
  2. D

    Working with old imperial conduit...

    A mate just moved into a flat and has asked me to sort out a few things with the electrics, mainly convert some single sockets to doubles. Unfortunately for me, everything has been run in singles in metal conduit without a CPC. Need to get hold of some backing boxes with the appropriate sized...
  3. M

    old imperial twin & earth

    Hi all, thanks in advance. Please can anyone confirm (rather than give opinion :) ) if imperial T&E with integral earth was tinned aluminium or if indeed they made copper? off to check job out to confirm but it does indeed appear to be copper and not tinned from visual. By the way its grey...
  4. trypod

    Imperial media

    Hi has any body been contacted by Imperial media to advertise in Thinksafe magazine? They do not like to take no, it seems a bit suspect!
  5. D

    Resistance per metre of old imperial cable?

    Hi again chaps, As I said on another thread, I'm trying to pinpoint a dead short in a lighting circuit (happened 2 minutes after running the heating, so I'm fairly sure it's a cable sitting on a hot pipe). Getting a continuity reading of about 16 ohms between the line and neutral so now trying...
  6. M

    old imperial conduit

    hi there does anyone know where i can source a 3/4 conduit die have got a stock etc thank you
  7. D

    metric thread to imperial

    i've got to adapt from inch to 25mm in galvanized steel i know there's adapters available but; can i fit a 25mm coupler onto inch steel tube or thread 25mm tube into inch female socket -without using adapters been a while so i can't recall thanks
  8. B

    imperial cable & adiabatic equation

    doing pir before cu change. property built 1968 imperial size cable all test results ok. just one circuit is bothering me and i maybe looking into this too much but radial circuit, which originally was for an electric old type two bar fire as informed by owner who lived there since it was built...
  9. B

    imperial size t&e and cu change

    help pls people cu change. house built in 1968 all old imperial t&e. retired couple so cant afford a rewire. mem bs3036 board. ive not come across this old cable before and not quite sure how to proceed.maybe for assesment with elescsa or building control route (long story very boring). 1.does...
  10. D

    Imperial cooker cable

    Hi all i am planning on using a consumer unit change in my own home for an assessment and am a little unsure on the following: My cooker cable is 7/0.44 for the live and 7/0.36 for the cpc. Does anyone have the current carrying capacity for this cable? Also is this the correct formula to find...
  11. S

    Imperial Supply Cables from Cutout

    Hi, newbie here. I'm looking at imperial red and black from the cutout to the meter. Can't access the ends of the cable to measure the strands. The diameter of the cable is 9mm. Can anyone guide me on what the most likely imperial size was (e.g. 7/052?) Many thanks! SW
  12. J

    Imperial Conduit

    Working on a flat which has the ring run in old imperial sized metal conduit. The earth is via the conduit but at some point the single sockets have been changed to doubles and the male brass bushes have not been replaced hence no earth on the ring. Anyway, a long way of asking if anyone knows...
  13. R

    Old size imperial conduit

    Can anyone tell me the size of the front fixings on old size imperial conduit box. 20mm besa boxes use M4 screws but I have to use the conduit as the CPC and therefore I need to get some of the old size screws as it is all imperial. Any ideas? Cheers

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