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Domestic Supply ?

Discussion in 'Electrical Forum' started by Abruno, Jan 11, 2017.

Discuss Domestic Supply ? in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. Abruno
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    Abruno Active EF Member

    Location:
    Hertfordshire UK
  2. Pete999
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    Pete999 Trusted Advisor

    Location:
    Northampton
    Maybe the N is a solid link
     
  3. Abruno
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    Abruno Active EF Member

    Location:
    Hertfordshire UK
    Neutral has its own separate Terminal to the right of the four fuses?
     
  4. westward10
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    westward10 Ugly kids what a disappointment. Electrician's Arms

    Location:
    Northamptonshire
    The cable doesn't look big enough to be three phase, could have originally supplied four single phase, or that's all they had on the van 50 odd years ago.
     
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  5. 7029 dave
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    7029 dave Trusted Advisor

    Location:
    bedfordshire
    IMO that could be 3 phase, but hey only 1phase tapped off, why do you ask.?
     
  6. sparksburnout
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    sparksburnout Electrician's Arms

    Location:
    Notts
    It is a bit odd. I have a 3P supply into my place, cable looks identical to be honest. Would the DNO supply 4 SP supplies with the common neutral block? Dunno, I would give them a ring, they are really good round here (WPD), I have the local teams number and they are only too happy to come out and have a look. They might even make you a nice bacon butty in their custom built kitchen/van. They have a nasty habit of leaving seals lying about as well.....
     
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  7. gutterball
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    gutterball Electrician's Arms

    Location:
    Fife
    Quite common around here. loop feed 1 supply to 4 adjoining houses. our old house was a semi with the loop to next door on our service head.
     
  8. Lucien Nunes
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    Lucien Nunes Mercury Arc Rectifier Trusted Advisor

    Location:
    London
    Cable could easily be 4c and yes looks like a relic of looped services. Probably too old to have been put in for electric wet CH, although if someone did request a TP+N supply for some reason (I've seen it in a house that was used for some kind of war work) the pup fuse might have been a looped service or to take the existing SP+N supply on a separate meter. Not ideal that the present supply is off the pup, IIRC UKPN limits them to 60A although that tends to assume there's also a service running on the parent. New S7 pups are limited to 30A max partnered with 60A.
     
  9. polo1
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    polo1 Electrician's Arms

    Location:
    Glasgow
    Business Name:
    GW Electrical & Security
    "Pup fuse" - can you explain L? Haven't heard the expression before. Cheers.
     
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  10. gutterball
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    gutterball Electrician's Arms

    Location:
    Fife
  11. sparksburnout
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    sparksburnout Electrician's Arms

    Location:
    Notts
    Yes I am a bit confused as well Lucian, how it it looped if the fuses are not terminated? Or are they just using the I/C side of them to daisy chain the next one?
     
  12. westward10
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    westward10 Ugly kids what a disappointment. Electrician's Arms

    Location:
    Northamptonshire
    I assume the "pup" fuse is the left one as it seems to be an add on.
     
    Last edited: Jan 11, 2017
  13. 7029 dave
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    7029 dave Trusted Advisor

    Location:
    bedfordshire
    Yes, that's how I see it and have seen it, the DNO just leap off the phase to add one more.And it's always L1
     
  14. gutterball
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    gutterball Electrician's Arms

    Location:
    Fife
    • Like Like x 1
  15. Lucien Nunes
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    Lucien Nunes Mercury Arc Rectifier Trusted Advisor

    Location:
    London
    A pup is an additional fuse mounted next to the main one, fed from the second terminal on the incoming side via a U-link. The service cable termination in the main fuse has to carry the current for both.
     
    • Like Like x 4
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