I plan to fit a 230V IPX4 extract fan in zone 2 of a shower enclosure with 6A 30mA RCBO protection from a lighting circuit. So far so compliant. However, I don't like the idea of all the lights going out when someone is showering during the dark hours, so I am exploring other ways of feeding the fan. I do have another mains feed close to the shower room but unfortunately this is a 6mm cooker cable, protected by a 40A 30mA RCBO. Question: Can I spur off the cooker feed with a 3A fused spur (in 1.5mm cable) to feed the fan? I would still fit the obligatory 3 pole isolation switch, and to my mind, the circuit would still be protected by the 30mA RCBO. So the lights would stay on if the fan (or cooker) tripped the RCBO. Thanks for any thougths diymostthings
Thanks JP - that's what worries me - it doesn't "sound" right does it. Usually you can see a reason for a reg. but in this case I can't see a reason why not. Perhaps someone might know...
Hmmmmm - steamy fan/mA dump /rcd trip/the rcbo also feeds lights/total darkness but shower keeps working..how to circumvent situation?
Answer - do as I do on all rewires and fit a dedicated rcbo circuit for fan - but this does not help Diy's question. What to do, what to do?
I suppose so Lee - but its the same old story really - if it was an inline fan run in ceiling void etc then maybe things might be relaxed. Its the ''analyse the situation scenario'' Example - is it a through the wall fan? Is it an inline selv fan? etc etc
I've seen some very good prices on rcbo's - one day I will fit a 16 way DB with 12 or more rcbo's; and any unused ways will be blanked ready for more if need be,
No they are single pole switched neutral. If they was double pole it would offer over current protection to both poles. Here's a pic if you haven't seen them.
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