20mm plastic conduit

[paul b b]

hello all.

how many 1.5mm2 can you put into 20mm plastic conduit?

thanks

paul

 

[extension15]

Not 100% on this, but 3 comes to mind...

 

[green-hornet]

Would depend on cable run or conduit run and derating factors.

For instance a 4 mtr stright run between boxes could hold 10 live 1.5 cables.

However physical sizes may prevent you getting them all in if there are bends etc.

 

[Evans Electric]

Without looking it up , about 10 or 12 at a pinch , with through boxes in the right places etc. PVC cables tend to bind on PVC conduit, as opposed to steel, theres a proper silicon type spray that helps, then so does WD40 , liquid soap, Swarfega etc or a bar of guey soap.

When people say you can't do that, its from years ago when the cable was VIR and tallow or lubricant rotted the insullation, which was waxed for pulling in anyway.

Deke

 

[danny7299]

3m stright = 13 cables

1bend @ 3 m = 12 cables

2 bends @ 3 m = 10 cables

This list is endless...

 

[paul b b]

thanks guys

 

[batty]

Is that singles or tw/e.

Batty

 

[extension15]

Is that singles or tw/e.Batty

Cripes, looks I misread here, I thought he ment T&E..

Ah, well looks like the OP got his answers............

:x

 

[Apache]

Cripes, looks I misread here, I thought he ment T&E.. Ah, well looks like the OP got his answers............

:x

you did seem to be estimating lower than average!

 

[batty]

well I was going to say four Tw/e at a push but can get a bit tight.

 

[green-hornet]

I always assume singles for conduit, if I thought it was for t&e I think I would have said 1

:^O :^O

 

[a1]

I always assume singles for conduit, if I thought it was for t&e I think I would have said 1 :^O :^O

Me too GH.

 

[extension15]

I've actually put 2 x 2.5 T&E in 20mm...



:coat