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Cable thoughts?

Martyn
Hi All, 


So I am looking at a job to install a cable inside a commercial building from an existing 100A 3ph service head to a 9 way TP Ryefield; circa 20M


The client has aggreed with the DNO that it will be a BNO installation, there will be no meters until after the Ryefield fuses.


Choices would seem to be,


External trench around the building or run internally (client prefered)


Stright Con

Split Con

SWA

Singles in trunking (nightmare)


Thoughts? 


I wont be deciding, it’s not going on my tickets! 


Thanks


Martyn


Jesus this new forum malarkey is crap on mobile, it seems to break all the text integration rules.

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    Martynduerden:

    . . . Choices would seem to be . . . 


    Straight Con

    Split Con

    SWA

    Singles in trunking (nightmare) 


    Thoughts?  . . . 




    Ok, your BNO network will have to comply with BS7671: so that is split con out, and singles are out as they will not be allowed by the DNO or Meter Operator. Straight con can be used, but you need four-core as you need the armouring as an earth. Summing up, I think SWA is probably your best bet. 


    Retards,


    Alan. 

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  • 0

    Martynduerden:

    . . . Choices would seem to be . . . 


    Straight Con

    Split Con

    SWA

    Singles in trunking (nightmare) 


    Thoughts?  . . . 




    Ok, your BNO network will have to comply with BS7671: so that is split con out, and singles are out as they will not be allowed by the DNO or Meter Operator. Straight con can be used, but you need four-core as you need the armouring as an earth. Summing up, I think SWA is probably your best bet. 


    Retards,


    Alan. 

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