Bathroom extractor fan

Jordan froud · Feb 24, 2018

Installing a extractor fan from a light fitting
Any help would be appreciated

suffolkspark · Feb 25, 2018

Carnegstar said:
Sleeve and identify the earth core in that flex.. BROWN-LIVE.. then connect it to the switched terminals in both light and fan

Why?

Deleted account · Mar 3, 2018

suffolkspark said:
Why?

Because it would then work. If sleeving the flex earth conductor it can be used as either the switched live or permanent live.

OK I agree. I Wouldn't do it that way as I would like to use the correct 3core and Earth. And fit a extractor isolator switch between the light fitting feed and the extractor.

Langdale · Mar 4, 2018

I would put an isolator in but doesn’t need one if a window in the room I think

suffolkspark · Mar 4, 2018

Theres no perm live at that light

What you dont need local fan isolation if theres a window in the room? New one on me

Deleted account · Mar 4, 2018

suffolkspark said:
Theres no perm live at that light

What you dont need local fan isolation if theres a window in the room? New one on me

Quite correct I missed the no permanent live at light .
Also haven't heard of the window no isolator thing.

suffolkspark · Mar 4, 2018

I'm guessing the OP has now just left it bodged as he's not been on anyway.

@Langdale, I think your meaning you don't need an overrun timer on a fan in a room with opening window, should still have an isolator

Electric Magic · Mar 5, 2018

Paignton pete said:
Because it would then work. If sleeving the flex earth conductor it can be used as either the switched live or permanent live.

OK I agree. I Wouldn't do it that way as I would like to use the correct 3core and Earth. And fit a extractor isolator switch between the light fitting feed and the extractor.

And I wouldn't do it that way because according to 412.2.3.2 circuits with one or more items of Class II equipment shall have a cpc run to and terminated at each point in wiring and at each accessory (except where double or reinforced insulation is being used as the sole protective measure for the whole circuit or installation).

MDJ · Mar 5, 2018

What cabling have you stuck in there? looks a right health robinson to me.

Deleted account · Mar 5, 2018

Electric Magic said:
And I wouldn't do it that way because according to 412.2.3.2 circuits with one or more items of Class II equipment shall have a cpc run to and terminated at each point in wiring and at each accessory (except where double or reinforced insulation is being used as the sole protective measure for the whole circuit or installation).

Agree. As stated in my post I would run a 3 core and Earth.