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AFAIK the tests done by BRE found that plastic wall plugs were fine, the general thoughts are they will last the 30 minute survivability window that the wiring is required to stay in place for.
Discuss Fire Rated Clips In Trunking in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
AFAIK the tests done by BRE found that plastic wall plugs were fine, the general thoughts are they will last the 30 minute survivability window that the wiring is required to stay in place for.
I seem to recall the opposite.Isn't there a thread on here were we discussed this. Someone did a test and they were found to be inadequate in a fire.
Well for me I code a high concentration of cables not supported against premature collapse in the event of a fire in escape routes a C2 , using a judgment call in the amount of cables that if collapsed, would cause a danger.
A single piece of cable in a piece of trunking then I would not give it the same code as the risk of danger in my view is diminished.
I use my judgment in that obviously say 30 cables above a suspended ceiling without the required support of fire retardant fixings is a much larger danger than a 1mm cable unsupported on a wall anywhere in the building.If I was going to use your philosophy mate then I would code any cable in an escape route as C2.
You say "A single piece of cable in a piece of trunking then I would not give it the same code as the risk of danger in my view is diminished." Where do you draw the line? Is 1 cable of 2.5mm classed as 'risk of danger diminished'? If so then are 2 cables of 1mm also classed as 'risk of danger diminished'?
Is there any leeway during installation? A vertical run wouldn't seem to be a risk (?) nor a cable running horizontally behind kitchen cupboards for example. Or is it "just do it all" to ensure compliance?
Woupd be nice if the powers that be could give us some concrete advice on this
EICRs: C1 if it is anywhere likely to impede escape or fire fighting activities; the logic being that another fault does not have to occur for this to be dangerous - a fire could originate from a source unrelated to the electrical installation. ...
But that something (the fire) is not (necessarily) related to the electrical installation. If there was an exposed live part something else would have to happen to make it dangerous - someone would have to touch it - but that doesn't make it a C2. That said I don't do EICRs, so I'm probably wrong...A C1 is for immediately dangerous items, this is not immediately dangerous. It only becomes dangerous IF something else happens, that something else being a fire, so it is potentially dangerous.
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