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Has my oven being wired dangerously?

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    #32
    Risteard81
    Registered Users Posts: 2,567 ✭✭✭Risteard81


    2011 wrote: »
    ....except in this case it is a single oven with no rings.

    Sorry about that. So it is.

    However we are often quoted a "total connected load" with these appliances which cannot be simultaneously energised. So the manufacturer might add the grill element to the oven element and quote this as the power even though it is not possible to do this.

    In reality 15kW of cooking appliances can generally be fed from a single 30/32A domestic cooker circuit.


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    #33
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,595 Mod ✭✭✭✭2011


    Utilization factor is a the ratio of the amount of energy used divided by the maximum possible to be used.


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    #34
    MrWatt
    Registered Users Posts: 10 ✭MrWatt


    WhyTheFace wrote: »
    Hi Guys,

    Thanks a million for all your input. A fair whack was over my head tbh.

    One thing I should have added is that the socket is behind the fridge. He then has a short extension chord plugged into it, and plugged into that are the fridge and oven.

    I get the impression if it overloads the trip will switch so I'm not too worried about the place burning down.

    I will get an electrician out if needs be but I'd just rather not have to fork out if it can be avoided. I'm already skint!

    Thanks again

    Only saw this part now.

    I wouldn't leave it like that. Not with the trailing lead. If the hob is wired to the mains and the cooker is nearby then hooking the oven up inline with the regs should be quick and cheap. And don't just get a registered electrician, get a good registered electrician. There's a difference.


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    #35
    MrWatt
    Registered Users Posts: 10 ✭MrWatt


    Risteard81 wrote: »

    In reality 15kW of cooking appliances can generally be fed from a single 30/32A domestic cooker circuit.


    Potentially close to a 70 amp draw on a 30/32 amp circuit??


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    #36
    Risteard81
    Registered Users Posts: 2,567 ✭✭✭Risteard81


    MrWatt wrote: »
    Potentially close to a 70 amp draw on a 30/32 amp circuit??

    The point is that it isn't potentially a 70A draw. It is actually impossible to achieve anything like that, and in reality it has been shown over many years that a 30A supply is perfectly adequate for it.

    IEE guidance (notwithstanding the fact that ETCI Rules and not IEE Wiring Regulations are what is relevant in this case) suggests that domestic cooker diversity can be assumed to be the first 10A of the load plus 30% of the remainder.

    This formula has worked for decades without any issue.


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