What size electrical cable is required when installing an electric shower?

We are unable to confirm the required cable size for any of our electric showers.

Part P of Schedule 1 to the Building Regulations which was introduced in February 2005 states that information of this nature can only be given by a qualified electrician, certified competent for undertaking installation work.

As such a Part P registered electrician will need to visit the site and investigate the matter as the electrical installation must comply with British Standard 7671.

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