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Generator and none rcd submain dilemma

hertzal123

Hi,a customer as asked me to enable him to connect a temp generator to his house.There are 2 cu,s,both dual rcd,but one is fed by a t and e buried in plaster from a a BS88 switched fuse.The

customer will not replace the submain with swa.My dilemma is,do I fit a type S 100ma rcd for the submain,or leave as is.Both would be recorded as a deviation.There is a hot tub fed from the sub main.

The generator neutral will be earthed and spiked.

                                                                                                               Thanks for any advice,

                                                                                                                          Regards,Hz

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    I don't see an issue with the sub mains being buried in plaster - they're existing not anything you'll have to certify.

    You'll likely need an RCD straight after the generator to provide ADS anyway - that should cover the submains at least as far as ADS is concerned, you could even make it a 30mA one and provide additional protection as well.

       - Andy.

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  • 0

    I don't see an issue with the sub mains being buried in plaster - they're existing not anything you'll have to certify.

    You'll likely need an RCD straight after the generator to provide ADS anyway - that should cover the submains at least as far as ADS is concerned, you could even make it a 30mA one and provide additional protection as well.

       - Andy.

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