What EICR code for plastic trunking in escape routes?

[KevinH]

Hi to all. I'm new and this is my first post.
I'm doing an EICR on a 3 story building split into multiple offices to let.
One thing I noticed is t+e cables in plastic trunking almost throughout (switch/socket drops, across ceilings to lights etc).
Would this be a code 2 or 3? Also would same code be throughout or just in escape routes?
I understand it could potentially be dangerous (causing entanglement when melting/falling etc), but surely an EICR is regarding electrical safety and as far as I can see the installation is electrically safe!
Any views as it would be a massive job to correct.
Surely if its a C2 then most commercial buildings in the country would fail?
Should I just C3 it and suggest landlord gets a fire safety report done?

 

[Octopus]

Quite often you find the original cable tray above the suspended ceilings, all alterations and editions to the wiring are obvious because the altered cables are just flung across the ceiling not supported and even tie wrapped to air conditioning pipework.
Lovely job.

Never a truer statement made

why do people think that chucking unsupported cables is a good idea?

 

[Ian1981]

Never a truer statement made

why do people think that chucking unsupported cables is a good idea?

The sad truth is people just don’t care!
Get in ,get out, get paid ,---- job

 

[Adam W]

With any luck a change to the regulations will bring home the message that it's unacceptable to simply fling cables over the ceiling grid, maybe even slow this 'race to the bottom' where uninitiated clients opt for the cheapest quote where the cowboys are planning to cut corners by not bothering with any containment.

It's actually already in the regs somewhere that you mustn't rely on other services to support your cables, partly because if the pipes or ceiling grid are taken down for an unrelated reason there'll be nothing supporting the cables at all and they'll just drape across the floor.

If the idea that you shouldn't do it because it's lazy and unprofessional isn't enough, maybe the idea that it's also dangerous will help.

 

[Deleted member 26818]

With ceiling grids, the lights, smoke detectors, PIRs, etc. are installed after the ceiling is put up.
Even with step ladders, the height you can reach above the grid is restricted, so if the real ceiling is more than a meter above the false ceiling you are not going to be able to fix cables to anything other than existing services.
There is also the problem, that many lighting systems in false ceilings use Lighting Control Modules which the light fittings are plugged into.
The purpose being they can be unplugged to be replaced so tying the flexes onto containment is not an option.
Worrying about other services being removed is a bit pointless, as to remove them would entail first removing the ceiling grid and light fittings.

 

[ForkEnigma]

No cables are exposed as all are contained within trunking throughout the installation.
So you guys are saying I give it a C3 ? Im assuming that just applies to the escape routes (stairwells/corridoors etc) as per 521.11.201 and no coding for trunking across ceilings in all rooms.

Is this reg still valid?

 

[Risteard]

In most circumstances I apply a C2 for this. There would need to be exceptional circumstances for me to conclude that it wasn't potentially dangerous and therefore only C3.

 

[cliffed]

When we did the 18th @ college we sat in a classroom with a suspended ceiling,& asked the lecturer about the cabling above us supported by cable ties to the hangers.
He replied the ceiling is fire resistance for so many hours so no other fixings required....??

 

[Deleted account]

C2 by definition. It is potentially dangerous due to premature collapse in the event of a fire.

 

[Mike Johnson]

C2 by definition. It is potentially dangerous due to premature collapse in the event of a fire.

Why would it prematurely collapse, it has to be put up in accordance with the building regulations which require a ceiling to have a fire rating, all of this speculation is assuming that electricians has sufficient knowledge of the fire regulations to make an assessment of the danger, this is a specialist subject that any electrician should not get involved with IMO not part of the remit.

 

[i=p/u]

Make sure ceiling earthed nevermind thinking about fires..

I dont believe rules should be retrospective here and c3 should be appropriate. As when this stuff was installed it was signed off somewhere as fine.

 

[DPG]

Make sure ceiling earthed nevermind thinking about fires..

I dont believe rules should be retrospective here and c3 should be appropriate. As when this stuff was installed it was signed off somewhere as fine.

Are you saying the ceiling grid sections should be earthed?

 

[i=p/u]

Aye get it earthed

 

[DPG]

Aye get it earthed

And, assuming it was needed, how would you ensure continuity to each piece of metal grid strip?

 

[i=p/u]

I'm reading and says not todo it since 2005, I'm sure I've had todo it and seen it done few times... instructed todo it ...

 

[DPG]

I'm reading and says not todo it since 2005, I'm sure I've had todo it and seen it done few times... instructed todo it ...

But even if the grid metalwork did need earthing (or bonding), how could you ensure every strip is connected adequately. You would need earth links bolted between each separate piece, otherwise any contact is just fortuitous.

Crazy.