steel conduit help

Discussion in 'Electrical Forum' started by h901, Jan 28, 2017.

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  1. h901
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    h901 CCTV / Alarms

    Location:
    London
    hi everyone

    i've recently started using steel conduit and so far most of the jobs where i've used it have been fairly simple (straight runs). i've got a job that requires quite a few 90 bends to be made (i've bought a hilmor bender and have been practising using it) i've just got a few questions which i'm hoping the members with more experience than me can help with. any other tips and tricks will be very helpful too :)

    1) should the saddles be installed first?

    2) how would one connect conduit with a 90 bend to a straight piece, if for example the run is quite long - something like - I________I
    is this done before or after fitting it to the wall, as i tried doing it once when it was already fitted to the wall and couldn't get the couplers to hold (before fitting to the saddles), as i was screwing one side on, the other side of the coupler was screwing off the other conduit

    3) what are conduit nipples used for exactly?

    4) when trying to make a 90 bend at around 1.5m in the conduit, i wasn't able to do it with the hilmor shorty as the conduit hit the floor before the bend reached the correct angle, so instead i cut off the top of the conduit and then re-attached it later with couplers (was this correct)

    apologies for the long questions and thanks in advance :)
     
  2. Pete999
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    Pete999 Trusted Advisor

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    For joining conduit to a piece already in situ, use a running coupler
     
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  3. sam400
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    sam400 Regular EF Member

    Location:
    sussex
    Hello mate

    1) yes!
    2) spin them together 1st or use a running coupler to join in situ
    3) female to female connections
    4) bend up!

    Hope that helps

    Sam
     
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  4. Leesparkykent
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    Leesparkykent You Rock Gmes Staff Member Trusted Advisor

    Location:
    Kent
    1 saddles should really be screwed to the wall 1st

    2 running coupler where it can't be fabricated on the floor then installed or manufacturers bend.

    3 1 example is two conduit boxes next to each other. 1 right angle box and a stopend with no conduit in between (two cameras mounted on these boxes side by side for example).

    4 turn the stop bar to the bottom and bend upwards.
     
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  5. h901
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    h901 CCTV / Alarms

    Location:
    London
    Thanks guys, really appreciate the help.
     
  6. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Think that was a have. ;)
     
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  7. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
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  8. Pete999
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    Pete999 Trusted Advisor

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  9. Perci
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    Perci Active EF Member

    Location:
    Melton Mowbray
    I prefer to see a galv through box used instead of a running thread as I don't like seeing any thread on show. This also provides a pulling point to help with wiring
     
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  10. Pete999
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    Pete999 Trusted Advisor

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    Neither do I Perci, but there come a time when you have to use a running coupler, why have you stipulated a Galv box?
     
  11. h901
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    h901 CCTV / Alarms

    Location:
    London
    Does anybody have a picture of a running coupler? Also where could i get hold of one from. I've searched online and can't find it anywhere. (I usually get steel conduit from TLC or screwfix and can't find any running couplers on their sites)
     
  12. Flanders
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    Flanders Regular EF Member

    Location:
    Tamworth
    You don't buy running cupplers you make one. You thred the conduit the length of a coupler plus a lock ring
     
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  13. cliffed
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    cliffed Regular EF Member

    Location:
    Lancs
    I always offer conduit to fixed position,then level up & mark saddles after,& fix.
     
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  14. cliffed
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    cliffed Regular EF Member

    Location:
    Lancs
    brill to see conduit back in use,rarely used these days,& I miss it,so much better job,& satisfaction guaranteed.
    What job are you using it on,be interested to know.
     
  15. Pete999
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    Pete999 Trusted Advisor

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    Location:
    Northampton
    You can't buy the running coupler, you make them yourself as and when you need to.
    The running coupler is, if I can explain it in words, as follows. imagine you have to join two pieces of conduit by the running coupler method, and you have a MALE end.
    On the piece you wish to join there is also a MALE end, extend this thread by tonjust over the length of a coupler and a locking ring or lock nut.
    Run the lock nut on to the long thread until you run out of thread, now run the coupler on, you will be left with a MALE end on the conduit that is fixed to the wall, now install the conduit with the coupler and lock nut until the MALE end and the conduit with the coupler and lock nut meet, now turn the coupler onto the MALE end and then lock it in place with the lockring.

    I hope that is understandable
     
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  16. westward10
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    westward10 Sponsored by failure. Electrician's Arms

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    Northamptonshire
    Ask for black enamel these days Pete the wholesaler will think you are speaking another language.
     
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  17. Pete999
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    Pete999 Trusted Advisor

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    Mate I seriously hope you haven't been into a wholesaler and asked for one, mind you with some of the Herbert's working in some of them now I doubt if any of them know what a running coupler is, certainly that would be the case in Screwfix, I can just imagine one of the staff running around the stockroom in a panic, "where are the 20mm running couplers kept"
     
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  18. westward10
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    westward10 Sponsored by failure. Electrician's Arms

    Location:
    Northamptonshire
    The use of a running coupler is employed because the nature of the system prevents the use of a conduit box.
     
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  19. Wilko
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    Wilko Gorillas are Great Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
  20. Pete999
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    Pete999 Trusted Advisor

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    Location:
    Northampton
    • Like Like x 1
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