Bathroom Fan isolator wiring help

[telectrix]

2.5mm 3 core

that would be a 1.0mm 3 core. at first glance it looks like 2,5mm , but is flatter. put 3 pole isolator in the 3 core ( can be in the attic), FCU before light. job done

 

[D Skelton]

Why on earth would you do both? If the OP wants work to comply, all he needs would be a SFCU on the lighting circuit.

 

[D Skelton]

it would be easier for me to cut the 3 core going to the FAN and put in a isolator inbetween or is there a switched fused unit that would comply in the same circuit location as stated above?

Maybe in these circumstances it would be easier to just stick a 3 pole isolator in line, however should you want your work to comply with the regs, you will have to fuse the fan down to 3A and the only way to do this is by fusing down the whole bathroom lighting circuit. If you're going to do this, there's no point in putting the isolator in as it's not needed.

 

[krishcanag]

Actually it is 2.5mm, I looked hard at it even though my headlight not that great!!!, I have been told by a mate that you cannot put the isolator or fused switch in the attic as such, it has be visable (would not meet regs for enclosure and barriers). I still think the fused switch is an overkill, but if it doesn't meet regs then I would put that in as well, else I rather pass on it, the bathroom would kinda strange, presently it has the pull-cord shower switch, then the pull-cord light siwtch, the FAN the isolator and if I stick a FCU as well on the ceiling it would appear more like a boeing 737!!!

 

[D Skelton]

Take the isolator out, join the cables, put a fused spur in its place and re-route the main light feed through this. Simples!

Trust me, unless the make of the fan is Expelier, I'm 99.9% sure you will need to fuse down to 3A to comply with the regs.

 

[nickblake]

Electricians guide to the building regs Page 5 Extract fans Quote: An extract fan supplied from a lighting circuit for a bathroom without a window should have its own means of isolation otherwise replacement or maintainance will have to be carried out in the Dark An isolation switch for a fan with overun facility will need to be tripple pole. so to provide the fuse protection required by the manufacturers you will have to fuse down either both Live and switch live so easiest way is to fuse the bathroom lighting circuit ,if the bathroom has no window then a fan isolator is required

 

[Jay Sparks]

Hi,

Greenwood also do a timer fan for about £30, it doesnt need fusing down either. Stick one of these in with a triple pole fan iso and your away.

Jay

 

[D Skelton]

A fan isolator is not a requirement! And anyone who says otherwise is talking out of their rear end. Do remember that the electricians guide to the building regs is not an authority on electrical regulations, it's a guide. It is also written by 'some' bloke and not the IEE. Please refer to the link below for clarification on the regs regarding triple pole isolators:

Bathroom extractor fans and 3 pole isolation, a source of much controversy

 

[SIIVION]

breaking tiles? Isolator/FCU outside of bathroom

 

[krishcanag]

There is no isolator at present that's what orginally suggested here in the forum to put one in then the fused 3A requirment came up to meet regs, though I don't know where in the regs it says anything about the bathroom FAN directly, so now are you sugesting keep JB to FAN as before, just find the feed to the present pull-cord light switch for bathrrom and FAN and put a 3A FCUbefore it and no need for anything else?

Take the isolator out, join the cables, put a fused spur in its place and re-route the main light feed through this. Simples!

Trust me, unless the make of the fan is Expelier, I'm 99.9% sure you will need to fuse down to 3A to comply with the regs.

 

[D Skelton]

I'm sorry, your syntax throughout all of your posts is all wrong and I'm having trouble understanding you. Could you explain the exact set up you have at this moment in time, and then could you explain exactly what you would like to do.

 

[sjm]

Vortice fans don't require fusing down (according to instructions "a multi pole switch is required for maintainance, no mention of 3 amp double pole switch").
I believe Solar and Palau are the same.

 

[D Skelton]

Solar and Palau do need fusing, I fitted one recently. I suppose if the manufacturers instructions say you need three pole isolation then you gotta put it in.

 

[sjm]

The Vortice fans instructions only ask for a multi pole switch to be installed. I take this to mean that no fusing down is required and that the fans they manufacture must incorporate a thermal cut out.

 

[D Skelton]

You are correct