extractor fans

[poppypiesdad]

As per most manufactures the fuse spur should be before the light switch , then a 3 poke isolator before the fan , meaning that you can work on the fan with the light supply isolated , will post the piccy when I can figure how to attach a pic from my phone

 

[tragicardo]

Don't building regs now call for a 2 speed (permenantly on) fan for domestic premises? It's probably a lot more detailed than that but from a sparkies perspective you only require a permenant live and neutral any way so only 1 live cable to worry about fusing.

 

[poppypiesdad]

Don't building regs now call for a 2 speed (permenantly on) fan for domestic premises? It's probably a lot more detailed than that but from a sparkies perspective you only require a permenant live and neutral any way so only 1 live cable to worry about fusing.

No M8 they dont thats more for mev and mvhr untis that run in low or normal spped with a boost (button , sensor , pir or whatever)

go the piccy View attachment 10192

 

[Engineer54]

What does the manufacturers instructions say?? If they only mention a FCU unit and nothing towards the run-on facility that's what you install/provide. All these scam providers can say whatever they want too, at the end of the day you follow BS7671 and manufacturer's recommendations...

 

[ezzzekiel]

not sure if its become building regs but trickle fans with boost appear to be standard now so a switch live also required

 

[gibbyisking]

tel him just to put a 3 pole fan isolator in

 

[Mr.Si]

Sorry to sound like a dunce... I was wondering if someone could put a drawing of their description, as I am trying to understand this from words because of my newness.

As they say, "a picture speaks..."

 

[gibbyisking]

Sorry to sound like a dunce... I was wondering if someone could put a drawing of their description, as I am trying to understand this from words because of my newness.

As they say, "a picture speaks..."

here yi r mate

 

[Mr.Si]

Sorry mate, i should have said "wiring diagram". Lol

Sent from my Samsung Galaxy S II via Tapatalk

 

[gibbyisking]

Sorry mate, i should have said "wiring diagram". Lol

Sent from my Samsung Galaxy S II via Tapatalk

no probz mate

 

[ezzzekiel]

3core from light , L/N/SL to 3pole isolator to fan

 

[Brendan976]

Hi
It's not a Myth page 65 electricians guide to building regs. should have it's own means of isolation, triple pole if fan has overrun facility
Regards
Ben

 

[jase]

with regards to Elecsa saying about fusespurs for fans,, i think that what they were getting at was that it is a part of the new regs that all equipment be installed to manufacturers instructions.

I seem to remember them going on about tightening all terminals with a torque screwdriver too

 

[gottahugenoggin]

I thought under Part P a bathroom extractor fan installed in a bathroom without windows must have a triple pole isolator to isolate for maintenance without turning the light off?

Thats exactly what we got taught in college too simon

 

[steve.b]

Where you have two independently fused supplies to one piece of equipment and then need to label the supply to indicate there is more than one means of isolation and a customer will find the fan has stopped and ignore the label and get a shock.






is'nt that what the triple pole isolator do's Mr Burns (one means of isolation)?
and should the fan not be extra low voltage,