cpc in pvc conduit?

[davesparks]

It is also possible, and not all that uncommon to damage a bit of flex or T&E and only expose the copper of the live conductor.

 

[Risteard]

Well you could argue if the conduit was damaged the phase conductor inside could become damaged and a potential electric shock for someone, the supply would not switch off if no other core run alonside it, thats one argument.

That doesn't mean that there is a requirement, however. In fact even with a cpc run alongside the phase conductor there is absolutely no certainty that the phase wouldn't be damaged without creating an earth fault.

 

[davesparks]

If it is an EICR then it cannot 'fail' it can merely be found unsatisfactory and a suitable code given.

Is it immediately dangerous?
Is it potentially dangerous?
Does it require improvement?

 

[Guest77]

It is also possible, and not all that uncommon to damage a bit of flex or T&E and only expose the copper of the live conductor.

very true, still think running one live core in a plastic pipe is carp, but thinking it isn't the same as it being against the regs.

 

[Risteard]

If it is an EICR then it cannot 'fail' it can merely be found unsatisfactory and a suitable code given.

Is it immediately dangerous?
Is it potentially dangerous?
Does it require improvement?

I can't see any breach of the Wiring Regulations unless it was to enter a ferrous enclosure on its own at some point.

 

[telectrix]

whether there's a cpc or not, damage could result in exposed live parts without ADS occuring, so what is the point of a cpc running alongside the L conductor? a an;t see any reg, breached whatewver.note in the comments sesction is all i'd put, just to show that i'd spotted it. c

 

[Cazmac1]

this was my initial point of view. I suppose you could argue that you are increasing the protection even though it may not actually work in practice. I have read through section 4 quickly but I just to tired to take it in. have a read when a bit fresher.

 

[Risteard]

If you believe that it is likely to suffer damage then perhaps pvc conduit is not the correct containment rather than wanting a cpc which is not required and would not afford any protection.

 

[davesparks]

If it doesn't work in practice then you aren't achieving anything.

If you are going to put this down as an observation requiring any action on an EICR then you need to be able to justify it in the regulations. There is no regulation requiring a cpc to be run alongside every conductor, only one that requires the cpc to be contained within the same wiring system.

 

[Cazmac1]

I can't see any breach of the Wiring Regulations unless it was to enter a ferrous enclosure on its own at some point.

It does enter the light fitting which is ferrous but as I said earlier all other points are earthed, so a short there would result in the protective device tripping.

 

[davesparks]

Then you have an eddy current issue

 

[Marvo]

Only if it entered the fitting through a different hole to the CPC and neutral.

I combed through my local SA regs just out of interest and there's also nothing that specifically forbids a single live insulated conductor in its own conduit unless you can class conduit as a sheath as well as containment.

 

[Deleted member 26818]

It's a requirement of the Regulations that all conductors (including the CPC) of a circuit a within the same ferrous magnetic containment (if used).
As this conductor is not within a ferrous magnetic containment it is not required to be within the same containment as any other circuit conductor.
No it does not require another CPC to be run with it either.

 

[davesparks]

It's a requirement of the Regulations that all conductors (including the CPC) of a circuit a within the same ferrous magnetic containment (if used)..

Which regulation is that?

 

[Deleted member 26818]

I'm in a Cafe.
I don't carry copies of the Regs around with me.
If I recall correctly, it's 521.5.2.