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Discuss Alternative cable to use instead of armoured when running external power circuit in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. Sparky_marky2
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    Sparky_marky2 Regular EF Member

    Location:
    United kingdom
    Hi guys,

    New to the forum and would much appreciate your opinions, I'm wiring a power radial circuit for one double socket for a customer, however part of the run (2 meters) will run on the outside of the house and then back inside, up from the ground floor to the first floor. The customer has specified that they do not want conduit running outside the wall so thats 2.5 twin and earth out of the question but I was wondering are there any alternatives to using armoured SWA on an external wall for power for sockets?

    Also they've ruled out chasing the wall on the inside due to a big ornate feature on the wall.
    Thanks in advance,

    Mark
     
  2. Gavin John Hyde
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    Gavin John Hyde Electrician's Arms

    Location:
    Somerset
    Business Name:
    Sulis Electrical Services Ltd
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  3. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    Hi Guys - other cables that may present themselves as "possible maybes" won't be as good and will look like SWA anyway, imho.
     
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  4. Sparky_marky2
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    Sparky_marky2 Regular EF Member

    Location:
    United kingdom
    I was looking into NYY-J cables or Multi Flex SY, has anyone had previous experience using these on a domestic install?

    Thanks again
     
  5. Murdoch
    Online

    Murdoch Electrician's Arms

    Location:
    Woking
    Hituff .....
     
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  6. Sparky_marky2
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    Sparky_marky2 Regular EF Member

    Location:
    United kingdom
    Last edited by a moderator: Jul 29, 2017
  7. davesparks
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    davesparks Trusted Advisor

    Location:
    guildford
    Yes there are alternatives to SWA, but they don't provide identical protection so you need to consider what protection is required to select a suitable cable.

    I would say that SWA is not suitable for this application due to the need to find a way of properly glanding it.
    H07-RNF or hi-tuff/NYY-J type cables would probably be more suitable.
     
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  8. davesparks
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    davesparks Trusted Advisor

    Location:
    guildford
    my only experience of SY in a domestic install was removing it after some idiot installed it outside
     
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  9. Sparky_marky2
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    Sparky_marky2 Regular EF Member

    Location:
    United kingdom
    Murdoch - :thumbsup:

    savesparks - yeh I was stood outside his house although its a bungalow, the garage is on the bottom and living room is above it and where the cable will be coming out of will be above 2m in height so out of the way on potential physical harm.. and thats why i was looking at alternatives to SWA due to the difficulties of having to gland it at one end.
     
  10. wirepuller
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    wirepuller Trusted Advisor

    Location:
    south uk
    I'll throw Pyro into the mix. No chance of anyone paying for it (or many DI's being able to use it). If you want discreet though......
     
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  11. davesparks
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    davesparks Trusted Advisor

    Location:
    guildford
    What is the relevance of it being above 2m?
    I'm not aware of anything that requires SWA below 2m,
     
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  12. davesparks
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    davesparks Trusted Advisor

    Location:
    guildford
    It would be my choice if I had to do it, but then I've got a bunch of offcuts in stock.
     
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  13. Des 56
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    Des 56 Trusted Advisor

    Location:
    Gliese 581C
    Would he even know what it is?
    I can picture it now,the DI trying to fit a tap on the end :)
     
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  14. Sparky_marky2
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    Sparky_marky2 Regular EF Member

    Location:
    United kingdom
    Davesparks - not necessarily a requirement just less chance of the cable being hit by a car on the driveway if its higher up and out of reach, thanks for the help and advice its much appreciated.

    Des 56 - :D
     
  15. davesparks
    Offline

    davesparks Trusted Advisor

    Location:
    guildford
    If there is a chance of that kind of mechanical damage occurring then SWA is not suitable, you would need steel conduit or MICC to have any chance of resisting the impact (they wouldn't survive the collapse of the wall though). But the correct way to deal with such a risk would be to find an alternative route.

    Although I think it's entirely unnecessary to consider being hit by a car on a domestic driveway as a possible risk to a cable on a wall, the probability is minimal.
     
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