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  1. steve eastick
    Offline

    steve eastick New EF Member

    Location:
    South West
    Business Name:
    Somerset Electrical
    Good evening.
    I have been asked by a client to size and install an electrical supply from a meter position located 600M from the property and consumer unit. The client wants the supply run underground.
    Supply is 240v single phase 100A TNCS.
    Could anyone assist with size and cable type recommendations?
    Any one else run such distances at 240v on private land?
    Thanks in advance.
    Steve.
     
    • Optimistic Optimistic x 3
  2. Taylortwocities
    Online

    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    Greetings.
    I don’t want to be harsh, but My first thought is that if you need to ask this question on an Internet forum, then you should not be doing this sort of work.

    Surely you know how to carry out basic cable calculations?
    What is the estimated Ib for the proposed installation?
     
    • Agree Agree x 5
    • Like Like x 2
  3. Spoon
    Offline

    Spoon Trusted Advisor

    Location:
    Lancashire
    Welcome to the forum mate.
    We are happy to help you out but we don't just give out info. How will you learn if we do that.
    Give us your calcs and what you think and we will correct anything.
    Everyday is a learning day.

    600 meters is a long distance....
     
    • Agree Agree x 6
    • Like Like x 1
  4. plugsandsparks
    Offline

    plugsandsparks Electrician's Arms

    Location:
    Chesterfield
    Its all in the yellow book, but unless you have a maximum load you wont get anywhere. Things to consider: Direct buried or in duct, depth of trench, loads and PF. 600M is a long way , earthing will be a challenge . I did an industrial run at 420M and the cable alone was 20K but that was 2X 120sqm 4C
     
    • Agree Agree x 3
  5. PEG
    Online

    PEG Trusted Advisor

    Location:
    Manchester
    Hi,these decisions are important,as the supplier,in my experience,will not care if you make a bad choice...they will just let the owner live with it,and keep on billing...

    I have had recent experience with a 460M supply,which really is a casserole of nonsense. :(
     
    • Funny Funny x 1
  6. Taylortwocities
    Online

    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    AS a second (more constructive) thought.
    Have you thought about having the DNO move the supply to a point closer to the property?
    Or have them provide a new, separate supply.
    Then it's the DNO's problem to sort out!
     
    • Agree Agree x 5
    • Like Like x 3
  7. buzzlightyear
    Online

    buzzlightyear still kicking sand, before pushing up daisies . Electrician's Arms

    Location:
    star command
    that one big f77k of cable their boy .probably 35mm cable ,your customer needs to get in touch with the DNO..
     
    • Agree Agree x 1
  8. 123
    Offline

    123 Electrician's Arms

    You say big cable, then say 35mm, make your mind up.

    At 600m, I'd say the cable needed is likely to be a lot bigger than 35mm.
     
    • Agree Agree x 11
    • Like Like x 1
  9. gaz101
    Offline

    gaz101 Regular EF Member

    I would gess 10x that size
    Cost will be large also
     
  10. Rocboni
    Offline

    Rocboni Trainee Access

    Location:
    Scotland
    For a 50 amp SP supply over 600m you are looking roughly at a 120mm cable that’s about 15k worth of cable. If its for a bore hole pump or something obviously it’ll be a smaller load.
     
  11. Taylortwocities
    Online

    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    I wonder if @steve eastick@steve eastick will respond to us. We all want know the answer to this.
     
    • Like Like x 1
  12. Strima
    Offline

    Strima Electrician's Arms

    Location:
    St Neots
    What’s the expected load on the circuit?
     
  13. buzzlightyear
    Online

    buzzlightyear still kicking sand, before pushing up daisies . Electrician's Arms

    Location:
    star command
    • Funny Funny x 1
  14. Murdoch
    Online

    Murdoch Electrician's Arms

    Location:
    Woking
    As usual, half baked question, OP comes on views the responses and doesn't update the thread.

    OP - enjoy digging a 600 m trench.........
     
    • Funny Funny x 4
  15. buzzlightyear
    Online

    buzzlightyear still kicking sand, before pushing up daisies . Electrician's Arms

    Location:
    star command
    and he can dig one for him self .
     
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