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Number of appliances on one radial line

Former Community Member
Former Community Member
Hello all,  I would really like some advice/reassurance.  We are having our kitchen done and the existing wiring is a radial line.  The builders are installing a 2.5mm TE line which services a double socket (coffee machine), dishwasher, boiling water tap and washer dryer.


My concern is that a single radial line is insufficient for the loading s involved.


I would really appreciate your thoughts.

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  • 0
    SVHomeowner:

    Hi all, just looked and the builder is not telling me the right details.  The cooker line is actually a 6mm.  Is this able to run a 7.2kw induction hob and 5kw cooker on a 45A mcd? Thanks


    To have proper overload protection (rather than relying totally on diversity) the cable need to have a rating at least that of the MCB. Cable rating vary depending on how they're installed - 6mm² is only good for 45A if clipped direct or equivalent (e,g. embedded in plaster) or in free air - if it's run in other ways - e.g. in building voids or worse through thermally insulating material it'll be shy of that.


    The obvious solution is just replace the MCB with a 32A one.


       - Andy.


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  • 0
    SVHomeowner:

    Hi all, just looked and the builder is not telling me the right details.  The cooker line is actually a 6mm.  Is this able to run a 7.2kw induction hob and 5kw cooker on a 45A mcd? Thanks


    To have proper overload protection (rather than relying totally on diversity) the cable need to have a rating at least that of the MCB. Cable rating vary depending on how they're installed - 6mm² is only good for 45A if clipped direct or equivalent (e,g. embedded in plaster) or in free air - if it's run in other ways - e.g. in building voids or worse through thermally insulating material it'll be shy of that.


    The obvious solution is just replace the MCB with a 32A one.


       - Andy.


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