Extractor fan

[Theorysparky]

Please say three core and earth we don't want some plumber or diyer doing it with three core flex.

Then they shouldnt be doing the job !!!!! headbang

 

[SteveT]

The reg 514.4.2 (pg91 BRB) can appear confusing.

On reading it is quite explicit in that

bi-colour (yellow/Green) sleeving can only be used to indicate CPC

Single core (yellow/Green) can ONLY be used as CPC

This leaves the unsheathed wire in T&E, 3C+E which by impplication, or the regs would explicitly ban it, to be used as required, as long as it is sheathed at termination at both ends.

The problem herein is where someone cuts into a cable to say create some kind of spur and unaware uses the bare conductor as an earth !!!!!.

Maybe this is something to consider, now and for 18th Edition- haha

 

[sparkytim]

The reg 514.4.2 (pg91 BRB) can appear confusing.On reading it is quite explicit in that

bi-colour (yellow/Green) sleeving can only be used to indicate CPC

Single core (yellow/Green) can ONLY be used as CPC

This leaves the unsheathed wire in T&E, 3C+E which by impplication, or the regs would explicitly ban it, to be used as required, as long as it is sheathed at termination at both ends.

The problem herein is where someone cuts into a cable to say create some kind of spur and unaware uses the bare conductor as an earth !!!!!.

Maybe this is something to consider, now and for 18th Edition- haha

The Reg is clear G/Y can ONLY be used for CPC.

IF INSULATED Single core then MUST be G/Y ALL WAY

IF BARE must be SLEEVED EITHER ALL WAY or at accessible positions

No one knowing what they are doing would NOT expect uninsulated conductor within a Cable to be the CPC.

 

[PaulSC]

If I were a switch plate manufacturer, I'd be thinking about manufacturing a 3 pole fan isolating switch with an integrated FCU - unless one already exists.

 

[SteveT]

The Reg is clear G/Y can ONLY be used for CPC.IF INSULATED Single core then MUST be G/Y ALL WAY

IF BARE must be SLEEVED EITHER ALL WAY or at accessible positions

No one knowing what they are doing would NOT expect uninsulated conductor within a Cable to be the CPC.

I agree with your sentiments SparkyTim

However

Point 1. Fully Agree

Point2. Fully agree

Point 3. If bare AND used as CPC must be sleeved/taped

However nowhere does it say the bare (Specifically T&E, 3C+E here) has to used exclusively as a CPC only that if it is, it must be coloured correctly.

I am only playing devils advocate with the actual wording - I would not use the bare conductor for anything else either.

If anyone can find anything else on this it would be of interest:coffee

 

[S60TEM]

When installing fans at first fix, I always plan for any eventuality and fit 3core+earth, 3 pole isolator and fit 3 amp protection also.

 

[sparkytim]

I agree with your sentiments SparkyTimHowever

Point 1. Fully Agree

Point2. Fully agree

Point 3. If bare AND used as CPC must be sleeved/taped

However nowhere does it say the bare (Specifically T&E, 3C+E here) has to used exclusively as a CPC only that if it is, it must be coloured correctly.

I am only playing devils advocate with the actual wording - I would not use the bare conductor for anything else either.

If anyone can find anything else on this it would be of interest:coffee

3 Core and earth cable only has 3 INSULATED conductors, the outer cover is a SHEATH not counted as BASIC INSULATION.

No LIVE conductor (Line or Nuetral) can be used without basic insulation, unless over head above a certain height with correct insulators etc.

 

[NozSpark]

+1...

how may times are you going to have to say this????

Get in your heads peeps... thc CPC in any flat sheathed T&E or 3&E cable CONNOT be used as a live conductor as it is NOT INSULATED

 

[Lurch]

IF INSULATED Single core then MUST be G/Y ALL WAY

Says who?

 

[Sidewinder]

I agree with your sentiments SparkyTimHowever

Point 1. Fully Agree

Point2. Fully agree

Point 3. If bare AND used as CPC must be sleeved/taped

However nowhere does it say the bare (Specifically T&E, 3C+E here) has to used exclusively as a CPC only that if it is, it must be coloured correctly.

I am only playing devils advocate with the actual wording - I would not use the bare conductor for anything else either.

If anyone can find anything else on this it would be of interest:coffee

Steve,

The sheath on "t&e" is that NOT insulation, it is not classed or type tested as insulation thus you would be using an uninsulated conductor as a live this would not be compliant.

Locked to prevent being resurrected (again)