Bathroom Extractor Fan

[Swedge]

I'm in the process of renovating a bathroom and I need to have the electric cables in place for a new extractor fan before the joiners lower and plaster the ceiling and I'm wondering if the following is correct.

I want the fan to come on whenever the light comes on, but I haven't actually purchased the extractor fan yet so don't have any installation instructions.

I have 2 core and earth coming from Consumer Unit to bathroom light via other lights in loop. I have 2 core and earth coming from switch to bathroom light. I have 3 core and earth going from bathroom light to extractor fan. I have 2 core and earth going from extractor fan to next light in the loop.

Is this correct...?

 

[Big_Spark]

NO..it won't work properly like that.

You need to wire the switch for the bathroom and the light in the usual way but then run a 3 core and earth from the light fitting to a triple pole isolator and then on to the fan.

The connections being a permenent live, to allow the fan to overrun, the switched live to turn it on with the light, and a neutral.

The loop to the next light should come from the light fitting anf not the fan.

The installation of a fan isolator is a requirement and it must be triple pole to break all phase conductors in the event of maintence on the fan...

 

[Swedge]

Thanks for the reply Big_Spark. I will make the neccessary adjustments.

Cheers.