Dave asks this question, which concerns an electric oven installation, and whether he has omitted anything in designing the circuit and its protection. It has been answered by the NICEIC (Theme – Regulations & Legislation):
Question: I have a 2.6kW oven for which I have a 16A Type B RCBO control run in 2.5mm twin and earth cable.
I came to this decision by using the following equation: 2600 / 230 = 11.3
So I know that I have the correct size breaker and I know that the cable has a current capacity to carry that size breaker.
I also have a 20A double-pole isolator in the system.
But I wonder whether there is anything more I should have applied?
Answer: Your proposal is compliant with current Wiring Regulations - BS7671:2008 (2011) - regarding its design criteria, so there are no further requirements to be included.
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