No earth to light switch, so sinking a plastic surface back box in a wall?

nothanks · 2019-01-20T13:09:19+00:00

I've discovered that the wiring to a light switch is in 2 core (i.e. no earth) so the metal back box was unearthed. Getting an earth to it would be a royal pain so I've removed the metal back box and plan to sink a surface box so the back of the switch is in an insulated enclosure and there's no chance of the screws making contact with a live wire if a wire broke.What's the opinion of the jury?Any alternative solutions?

Jan 20, 2019 Last reply: 7 years ago 20 Replies

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ARW 7 years ago

Indeed.

A mixture of RCBOs and some RCD shared circuits is quite a good option in many cases.

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No earth to light switch, so sinking a plastic surface back box in a wall?

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