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Why isn't twin and earth cables used in commercial?

Former Community Member
Former Community Member

I was always taught that twin and earth cables should be used in domestic only and singles/multicore in commercial? 

Why is that ? I mean there isn't anything wrong with using 1.5mm2 twin and earth with 1.0mm2 CPC for lighting circuits.

Regards,

J

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    Chris Pearson: 
     

    What about 3-core & earth? Even 1 sqmm could supply a 9 hp motor, but I doubt that it gets used for that very often.

    we have some in a lab wired just like that, it does feel a bit wrong, but its not

     

    it will be exciting if it ever gets snipped live by mistake!

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  • 0

    Chris Pearson: 
     

    What about 3-core & earth? Even 1 sqmm could supply a 9 hp motor, but I doubt that it gets used for that very often.

    we have some in a lab wired just like that, it does feel a bit wrong, but its not

     

    it will be exciting if it ever gets snipped live by mistake!

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