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Discuss Supply loft light from unused shower cable in the Electrical Forum area at ElectriciansForums.net

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I was asked a question today if it would be possible to use an existing cable that was previously installed to supply a shower which has been taken out (6mm T+E) to feed a light in the loft. Initially I said no it wasn’t good practice to do this, but now I’m thinking as-long as the MCB is downgraded to 6 amp and the light was switched using a fused spur with 3 amp fuse is there really anything wrong with doing this?

Just looking for some advice on the matter.

Thanks
 
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Andy78

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You could either change the MCB to one that protected the smaller cable that you join to the 6mm, or put in a FCU between the cable sizes to do the same job, but there is no real need to do both.
 
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That’s great I’ll use a fused switch to supply the light.

Thanks for the reply
 
if the cable tests out ok just bang an fcu on it and fuse down from there. alternatively pop a two way board up there and good for sockets etc if needed
 
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