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Range Cooker Connection Refusal.

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A lady today asked me to estimate to do some cooker circuit alterations in her house. She has an old electric range cooker in the kitchen which she is to replace with a new one rated at about 11.2kW.

 

A certain national electrical retailer would not connect up her new and paid for range cooker as the cooker supply is run in 10.00mm2 T&E and protected by a B50 M.C.B. plus R.C.D.

 

The reason given was that the supply is too big and will overload the new cooker.

 

The retailer insisted that the  B50 M.C.B. be replaced by a B40 M.C.B. and the final cooker connection from connection unit to cooker, be run in 6.0mm2, the 10.002 final connection being removed.

 

Comments please.

 

Z.

 

 

 

 

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    BS 7671 says that B22 etc lighting accessories must be protected by no greater than a 16A OCPD, so I see no reason why appliance manufacturers can't make a similar stipulation.

    Ideally, manufacturers should be specifying a range, e.g. 32A-50A, to cover maximum demand (low end), and the capacity of the terminals + the internal wiring to those terminals (high end).

    The annoying thing is when you have an induction hob which insists on exactly 25A breaker.

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  • 0

    BS 7671 says that B22 etc lighting accessories must be protected by no greater than a 16A OCPD, so I see no reason why appliance manufacturers can't make a similar stipulation.

    Ideally, manufacturers should be specifying a range, e.g. 32A-50A, to cover maximum demand (low end), and the capacity of the terminals + the internal wiring to those terminals (high end).

    The annoying thing is when you have an induction hob which insists on exactly 25A breaker.

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