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Discuss Fused spur off ring main regulations in the Electrical Courses & Electrical NVQ's area at ElectrciansForums.co.uk.

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  1. Wilson12
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    Wilson12 Trainee Trainee Access

    Location:
    London
    hello I've seen the page at the back of the regs book but nothing explains can you -
    Have a spured socket off the ring using one cable and then put a fused spur after the spur and then feed additional sockets after the spir
     
  2. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    And the question is?
     
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  3. Pete999
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    Pete999 Trusted Advisor

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    I take it Wilson that you are referring to Appendix 14 of BS7671, the diagram shows all scenarios for a RFC and indeed the requirements for installing spurs from the RFC.
    Your question would be a no you can't spur a socket using a single cable, and then add a fused spur to supply more sockets. What you could do however is swap the Spurred socket for a fused spur and then add as many sockets as you like, what you are suggesting amounts to 2 spurs from the same point. Hope this helps.
     
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  4. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Can you draw what you are asking. But it sounds like no, if I understand you correctly. Although saying that it hasn't stopped many others from doing so from what I see when attending various sites.
    Aha manitas de plata has beat me to it.
     
  5. Taylortwocities
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    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    There is nothing to stop you having two spurs from the socket on the ring.
    One spur to the additional socket, one spur to the FCU/

    There is a physical problem of cramming 4 x 2.5 conductors into the back of the socket.

    If I was you, I would do as Pete says above
     
  6. Andy78
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    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    If I read correctly then no you can't do what you suggest. Think about the maximum potential load on the first section of cable spurred from the ring.
     
  7. Pete999
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    Pete999 Trusted Advisor

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    TTC I think the OP was wanting to spur off of a socket to another socket using a single 2.5, and then from that spurred socket to another fused spur to feed some more sockets
     
  8. Taylortwocities
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    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    Ahh ok. Spur to FCU then on to additional sockets.
     
  9. Pete999
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    Pete999 Trusted Advisor

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    Original socket to new spurred socket to FCU to feed more sockets. I'm getting a headache now. What you said above is how it should be done, now where are the headache pills?
     
  10. Andy78
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    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    Like this I believe.


    2017-10-12 11.46.37.jpg
     
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  11. Pete999
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    Pete999 Trusted Advisor

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    Correcta munda, mon ami, zat is what I believe Monsewer OP meant.
     
  12. Taylortwocities
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    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    Which he cannot do. as the FCU would be a spur from a spur.

    The FCU must be before the first double socket.
     
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  13. Taylortwocities
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    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    FullSizeRender 2.jpg COMME CA
     
  14. MisterE
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    MisterE Regular EF Member

    Location:
    Stoke-on-Trent
    and you are never 39 and a quarter :D
     
  15. Andy78
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    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    You're right. I'm not quite up to the quarter. More like 39 1/8
     
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