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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.

Parents
  • 0
    Always been slightly confused on BS7671 for cables before a Meter? 


    If as you suggest it will need to meet BS7671, How would Concentric meet BS7671 with CNE after the head?


    Why do you contend Split Con does not meet BS7671, there are millions of meters of it installed in to flats from Ryefields? 


    To my mind, its absence of mention does not equal prohibition.


    Why would I need armouring? 


    Why would the Meter operator have any knowledge of a cable that does not anywhere connect to a meter? 


    5c SWA *seems* a crazy choice 


    Thanks


    Martyn

Reply
  • 0
    Always been slightly confused on BS7671 for cables before a Meter? 


    If as you suggest it will need to meet BS7671, How would Concentric meet BS7671 with CNE after the head?


    Why do you contend Split Con does not meet BS7671, there are millions of meters of it installed in to flats from Ryefields? 


    To my mind, its absence of mention does not equal prohibition.


    Why would I need armouring? 


    Why would the Meter operator have any knowledge of a cable that does not anywhere connect to a meter? 


    5c SWA *seems* a crazy choice 


    Thanks


    Martyn

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