Shallow trunking not too wide

[flyingsparks]

BAS if it's a folded section you need try Alco engineering. Very reasonable. Perhaps fold up a tray for the lid and self tap it or similar onto the main trunking.

www.alcoeng.co.uk

 

[ban-all-sheds]

Also - forgot - and even more reason I'd not want to have to take a hacksaw to something larger that I need....

I need 1 internal and 1 external 90° bend, and a second section about 30cm long.

 

[RF Lighting]

Bas you need to be looking for lighting trunking.

We did an installation in an office about five years ago using 2" x 1" galv steel lighting trunking.

You can see the profile in the top right of this picture. We bought it as standard galv trunking and had it powder coated white to suit the customers requirements.

It was purchased from city electrical factors. It will be a special order item, but they should be able to supply you a single length.

Untitled

• RF Lighting
• 28 Jan 2015
• 1

 

[rsgaz]

Does it absolutely need to be steel? Marshall Tufflex do 100 by 40 PVC with bends...

http://www.marshall-tufflex.com/shop/product.php?xProd=568

If PVC trunking is no good, then how about using Unistrut as trunking with a clip in lid? 2 runs side by side would be 82mm by 41mm.

Gaz

 

[stillp]

Also - forgot - and even more reason I'd not want to have to take a hacksaw to something larger that I need....

I need 1 internal and 1 external 90° bend, and a second section about 30cm long.

Hacksaw? Man up BAS, where's your angle grinder!

 

[ban-all-sheds]

I did look at lighting trunking, but don't think it will give me enough capacity. The run takes almost every circuit from the CU up to the ground floor ceiling void.

Does it absolutely need to be steel? Marshall Tufflex do 100 by 40 PVC with bends...

I guess that as when finished it will be boxed in, not flush and plastered over, one could argue that the cables are not concealed and therefore do not need mechanical protection (not that it's possible to comply with the regulation on that anyway), so no, doesn't need to be.

I've currently done it with 2 runs of 50x50

But they are on the surface, and by the time they are boxed in it's all too big - I've figured that something shallower, recessed as much as possible, would be OK.

If PVC trunking is no good, then how about using Unistrut as trunking with a clip in lid? 2 runs side by side would be 82mm by 41mm.

I'd forgotten about Unistrut.

That might well do the trick - thanks.

 

[JohnW2]

Does it absolutely need to be steel? Marshall Tufflex do 100 by 40 PVC with bends...

I guess that as when finished it will be boxed in, not flush and plastered over, one could argue that the cables are not concealed and therefore do not need mechanical protection (not that it's possible to comply with the regulation on that anyway), so no, doesn't need to be.

As I think you observed before, if you took that view/approach, you wouldn't really need either plastic or metal trunking - you could just have your wooden 'boxing'. I have to say, however (and suspect you may feel similarly), that, if not only for the sake of future occupiers, I would probably prefer to see the metal protection there - even if the cables are not technically 'concealed', there would be scope for someone to attack your boxing with drills, screws or nails! Having said that, I certainly have 'boxed in' cables without any metal mechanical protection in my time!

Kind Regards, John