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Two high-power appliances on a single 40A RCD
Former Community Member
I have an electric shower installed on a 40A RCD, in a room adjacent to my kitchen. The shower is only used in an emergency - i.e. when our gas boiler is unable to provide hot water to our main bathroom. I would like to take a spur from this 40A connection to use for a new double oven, which is rated at 32A. Can anyone advise on a safe and legal way to do this, ensuring that only one of the two appliances can be connected at any one time?
Thank you Gentlemen, several here are in the area where I would take away any qualifications you have, or perhaps don't! Which regulation says that you may not connect more loads than the CPD rating? Actually none as you well know from ring and radial final circuits. If too much load is presented to the CPD it will trip in all cases. So which part of this is in any way a "DANGER", it is a potential inconvenience at worst. When will people realise that they don't understand what they are doing and go and be dustmen or something. You are giving FALSE advice to a member of the public who has come to the IET for proper information. There is nothing wrong with his idea, of all the loads in parallel and if he uses too many the CPD will operate SAFELY. Please list the regulation number you are citing immediately for the basis of your advice.
Thank you Gentlemen, several here are in the area where I would take away any qualifications you have, or perhaps don't! Which regulation says that you may not connect more loads than the CPD rating? Actually none as you well know from ring and radial final circuits. If too much load is presented to the CPD it will trip in all cases. So which part of this is in any way a "DANGER", it is a potential inconvenience at worst. When will people realise that they don't understand what they are doing and go and be dustmen or something. You are giving FALSE advice to a member of the public who has come to the IET for proper information. There is nothing wrong with his idea, of all the loads in parallel and if he uses too many the CPD will operate SAFELY. Please list the regulation number you are citing immediately for the basis of your advice.
