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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

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    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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    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 In echoed steps I walk across an empty dream. 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 In echoed steps I walk across an empty dream. 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 Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
  20. Pete999
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  21. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    I remember my first conduit install many years ago. Was a small warehouse and we had done the lighting runs at high level off two tall A frames and scaffold boards! All that was left was the toilet block, my old gaffer told me what was needed and disappeared, now I realise probably laughing. All was going well and I got stuck because no matter what I did there were two sections I could not join, I even assembled it in the warehouse then couldn't get it back through the toilet door. My gaffer returned knowing what was going to happen and showed me a running coupler.
     
  22. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    I am hoping he is giving the op a clue.
     
  23. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    Hope springs eternal :)
     
  24. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    Reread the original post, to join a straight length to a bend you just need a coupler.
     
  25. Pete999
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    Pete999 Trusted Advisor

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    I know but he was saying as he screwed one end the other end came undone (wish I had been there) or something akin to that not sure as I'm bored with conduit now, it's pub time, or soon will be. surely everyone know how to join 2 lengths of tube together, with a coupler you say, wish it was as simple as that in real life.
     
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  26. h901
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    h901 CCTV / Alarms

    Location:
    London
    Fitting some CCTV cameras and just wanted to make the installation look neat and professional (In my opinion steel conduit looks the part)

    Haha not yet mate, just done some searching online.

    Yes that's correct.

    I kind of understand, I'll read it again tomorrow and try it out at home. Thanks
     
  27. cliffed
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    cliffed Regular EF Member

    Location:
    Lancs
     
  28. cliffed
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    cliffed Regular EF Member

    Location:
    Lancs
    Advice given to me when I was apprentice was,don't be to elaborate with conduit,make the least amount of sets,kicks,saddle over'S as possible.
    Straight runs & ease of installation paramount,you have a look around at some of the older jobs,conduits everywhere,bending in out over & down,basically not a clue on how to install correctly,really looks nasty.
     
  29. Pete999
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    Pete999 Trusted Advisor

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    It's an art to which (I don't know why) I was very good at. I say was, not touched it for a while
     
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  30. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    Not one of my favourite things, my old gaffer taught me bends using a wood block with holes at either end. He was a master, could turn out perfect swan necks every time.
     
  31. Pete999
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    Pete999 Trusted Advisor

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    For some reason I got a name as being the conduit King, the Boss would say "conduit, give it to Pete" don't know what it was, I was just good at it, never had any special tuition, some folk are good at something and can't explain it that was me.
     
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  32. 7029 dave
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    7029 dave Trusted Advisor

    Location:
    bedfordshire
    Shame these skills are not being taught any more.I read a post long time ago, chap was saying that conduit work was labourers work. Don't think so.!!
     
  33. Pete999
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    Pete999 Trusted Advisor

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    What planet was that idiot from?
     
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  34. Rocboni
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    Rocboni Trainee Access

    Location:
    Scotland
    It is still being taught, well it is on the SVQ3. Was part of the of the Scottish apprentice of the year competition aswell (which I came 2nd)
     
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  35. Leesparkykent
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    Leesparkykent You Rock Gmes Staff Member Trusted Advisor

    Location:
    Kent
    Still taught in my local college.
     
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  36. Flanders
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    Flanders Regular EF Member

    Location:
    Tamworth
    Just to add do not put any more 2 bends or 1 bend and a double set in a run without a draw through point
     
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  37. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire

    Also useful accessories for conduit installations, are sky hooks for mounting fluorescents and long weights for cable pulling. All available from your local wholesalers. :cool:
     
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  38. Pete999
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    Pete999 Trusted Advisor

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    What about running couplers?
     
  39. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Don't be so ridiculous Pete! :)
     
  40. Pete999
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    Pete999 Trusted Advisor

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    Location:
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    OK Sorry
     
  41. Flanders
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    Flanders Regular EF Member

    Location:
    Tamworth
    No you just need elbow grease for them !!!
     
  42. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    I'm off to get some tartan paint and a left-handed screwdriver.
     
  43. Pete999
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    Pete999 Trusted Advisor

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    Northampton
    I knew it I just Knew it bound to get stupid once everyone got back home
     
  44. Risteard
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    Risteard Electrician's Arms

    Location:
    Derry, Ireland
    Business Name:
    Walsh Electrical Services
    Forgive me for asking but why was steel conduit not on the curriculum when the OP was training? I didn't think it had been removed. Or was a non-electrical Apprenticeship undertaken?
     
  45. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Think OP installs cctv, and is using steel conduit now. :)
     
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