Discuss sizing containment for T&E in the UK Electrical Forum area at ElectriciansForums.net
so use the same tables. you won't be far out. as to how many cables, basically there should be approx. 50% cable and 50% airspace in the trunking. or.................. when you can't get the lid on, you know it's too full.Like I already stated the OSG only provides guidance for single core cables.
Like I already stated the OSG only provides guidance for single core cables.
so use the same tables. you won't be far out. as to how many cables, basically there should be approx. 50% cable and 50% airspace in the trunking. or.................. when you can't get the lid on, you know it's too full.Like I already stated the OSG only provides guidance for single core cables.
Like I already stated the OSG only provides guidance for single core cables. Get your facts right before patronising me.
Maybe re read it perhaps!
Its a generic question. how dies one calculate how many Twin and Earth cables can fit on x size cable tray. Yes I know you can work out the diameter if the cable and multiple, but in reality cables are not butted right up to each other. Is there a factor that is applied.
Yep re read it. Still says the same. For single core cables
like i said. use the tables for singles and assume T/E is poorer at heat dissipation due to it's sheath so derate by a factor that you determine using common sense. BS7671 is not the bible.( even if IET think it is)
Yep re read it. Still says the same. For single core cables
What book are you reading? My OSG (Green) talks about other sizes and types of cable. Bottom of page 138.
I was mainly thinking of basket but wondered how trunking would be sized with T&E. I have come across it on some supermarket installs.
Have you ever tried applying common sense and finding out for yourself what you need to know?
I was mainly thinking of basket but wondered how trunking would be sized with T&E. I have come across it on some supermarket installs.
You have asked about trunking though.
This is what i was getting at.
The normal schedule will always be for lsf singles in supported galv trunking
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