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Cable calculations

MrJack96
Hi guys i wanted to calculate the maximum run when spuring of a ring final circuit is there any equations or is it just as simple as calculating VD to the furthest point in the ring and then VD to the end of the spur. The reason for the question is I want to spur of an existing socket using a 10meter run of 2.5 for an outside socket. Just want to Double check it’s sufficient 


thanks guys
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    MrJack96:

    Well there’s the next problem it’s fed from  a Wylex fuse board with plug in type fuses. ??


    Let's get something clear. BS 7671 is not retrospective. If the owner doesn't want to replace the DB, but is happy to pay for an SRCD, that is the safest option. Go with it!


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  • 0
    MrJack96:

    Well there’s the next problem it’s fed from  a Wylex fuse board with plug in type fuses. ??


    Let's get something clear. BS 7671 is not retrospective. If the owner doesn't want to replace the DB, but is happy to pay for an SRCD, that is the safest option. Go with it!


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