Extractor Fans and External Lights ?

[ricky101]

Hi,

Have three extractor fans around the house, the cooker hood on a spur from the ring and the other two from the lighting circiut; all via switched FCUs, plus 3 x 120w external lights wired direct to the lighting circuit, via SP light switches.

Have a spare 6A RCD in the consumer box so was thinking it would be better to have all the fans and extenal lights on that line to reduce the load on the lighting ciruit and also reduce the chance of the lighting circuit tripping out from the weather prone external lights.

Will this meet with regulations ?

Thanks

 

[JohnW2]

Have three extractor fans around the house, the cooker hood on a spur from the ring and the other two from the lighting circiut; all via switched FCUs, plus 3 x 120w external lights wired direct to the lighting circuit, via SP light switches. ... Have a spare 6A RCD in the consumer box so was thinking it would be better to have all the fans and extenal lights on that line to reduce the load on the lighting ciruit and also reduce the chance of the lighting circuit tripping out from the weather prone external lights.

Do you mean a 6A MCB? - or is it an RCBO (with a test button)?

The extractor fans represent insignificant loads, and therefore don't really need moving from where they are. If weather affected the external lights, it would be an RCD which would trip, which could take out many circuits, not just the lighting. The best thing to do about that would be to to change the switches to the outside lights to DP ones - at least you could then isolate them if they did get water-ridden and cause problems.

If you ran new connections from a spare MCB in your CU. that would be 'notifiable work' (a "new circuit"), which could have an implication of £000s!

Kind Regards, John

 

[ban-all-sheds]

£'00s maybe. Not £'000s, surely?

 

[JohnW2]

£'00s maybe. Not £'000s, surely?

Yes, I meant £XXX, not £X000.

Kind Regards, John