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Regulation for rewring back box?

Former Community Member over 3 years ago

Hi, I'm currently holding an MEng in EEE, but not a certified electrician otherwise.

I want to install smart light switches in my “dwelling”. I have encountered issues where the current back box is standard 74x74x25, but I would need extend it to 86x86x38 for the new light switch.

I want check do I need part P certificate, or planning permission? How to be compliant while minimise the cost? (I have no experience in dwelling electrical work)

PS: The dwelling is a new build (2019)
PPS: I might consider obtain required certificate(s) myself if is not too expensive. Since I like do these kind of work, so it might be cost effective in the long term.

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0 Former Community Member over 3 years ago

The “where to buy” appears to exclude UK in the listings.
The square box pictured appears to be a standard surface box whose outside dimensions look like 86 mm but with standard 2 3/8" or 60 mm screw fixing centres that are the same as standard metal knock out boxes. If you have standard 25 mm deep boxes fitted, these are available in 35 and 46 mm depths.
Regards
BOD
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0 Former Community Member over 3 years ago

The “where to buy” appears to exclude UK in the listings.
The square box pictured appears to be a standard surface box whose outside dimensions look like 86 mm but with standard 2 3/8" or 60 mm screw fixing centres that are the same as standard metal knock out boxes. If you have standard 25 mm deep boxes fitted, these are available in 35 and 46 mm depths.
Regards
BOD
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Vote Up 0 Vote Down

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Regulation for rewring back box?

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