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Bunched Cables
Former Community Member
Looking at running new circuits above a ceiling on a job and came across this,
What do you think the grouping factor is? ?
Does anyone else prefer running singles in conduit/containment? T&E is always quicker and easier to install, but I would only tend to use it on domestic installs,
well if your new cables are on the outside, their grouping factor is quite good, but it is the cable in the middle that gets cooked.
There is a lot to be said for cable baskets in these cases. Equally in large rambling installations with big buildings cables are sized by volt drop, not heating considerations, so the bundle often runs cool anyway.
There must be miles of roofspace cable installations like this waiting to drop on the unwary, it's not great, but it usually gives no trouble.
I trust that we all agree the standard of wiring is definitely poor. Nonetheless, it does seem to be increasingly common. One hopes that should the ceilings be removed, the wiring system employed will show the electrician’s skills in a better light. I wonder what the other trades think when they see the obvious lack of pride in such shoddy workmanship? Or is it just ignorance born from the slippery slope of commercial pressures? In any event, any sparks producing that standard of work should think about alternative employment.....that also applies to whoever installed the fire alarm cables!
