Does the fan isolator in a bathroom have to be on the outside wall?

[Amp David]

Here Here

 

[mayfair]

Torch how old fashioned was working in a place the other day and an alarm company were in the false ceiling using bloody iphones as lights now thats an app NUTTERS

so, to sum up. if there's a window , not letting in enough light to see the fan, you don;t need an isolator. if the client has cfl lighting , you need an isolator, even though you still can;t see it with the lights on. all boils down to the good old torch. think we all know how to use one

 

[jaydub]

If replacing old fans like for like in a dwelling, would you need to add fan isolators if they are not there already?

 

[telectrix]

no. a like for like replacement does not have to have circuits upgraded to latest regs, e.g. RCD protection provided. if you fitted an isolator, you'd have to provide RCD protection to the circuit if not already there.

 

[jaydub]

Thanks for that, that's what I thought, someone wants a couple replaced and I'm sat here with BS7671 and building regs book trying to decipher it, cheers

 

[telectrix]

basically, if you modify a circuit, then that circuit in it's entirity has to comply with current regs. including checking/rectifying earthing/bonding but just changing an accessory does not modify the circuit.