outdoor trunking

bobbyr · Sep 23, 2014

Hello All

Is there any type of square trunking that can be used outdoor for domestic purposes. The customer doesn't want to paint over cable or galvanised trunking and I need to run a 10mm supply to an outer building. Any suggestions? cant go In the ground either as he has blocks on top of concrete.

thanks

Silly Sausage · Sep 23, 2014

20mm Black Enamel Conduit Boxes Stop End Terminal Through Tee 4 way 4way Angle U Y Boxes

Engineer54 · Sep 23, 2014

If you're thinking of using white PVC trunking forget it. As far as i know it doesn't come in a weatherproof form and is not UV resistant. So if your customer wants a supply out to this outbuilding he is going to have to compromise somewhere along the line, such as using black UV resistant conduit and fittings etc with rubber box lid seals, or SWA cable etc.... Or he can't have a correctly installed supply to the outbuilding!! .....Simples!! lol!!

Octopus · Sep 23, 2014

Use SWA.

and why exactly does he need 10mm?

Job done

Pete999 · Sep 23, 2014

Got some knocking about in his shed I expect

shanky887614 · Sep 23, 2014

bobbyr said:
Hello All

Is there any type of square trunking that can be used outdoor for domestic purposes. The customer doesn't want to paint over cable or galvanised trunking and I need to run a 10mm supply to an outer building. Any suggestions? cant go In the ground either as he has blocks on top of concrete.

thanks

if he doesnt want to paint it, suggest stainless or better yet powder coated lol.

catenary wire?

Baker1988 · Sep 23, 2014

Why does it need to be waterproof? The twin and earth that will be going in the trunking will be waterproof and I pretty sure hardly any water would get in pvc trunking

Richo77 · Sep 23, 2014

Don't think plastic trunking will last long outside with all the elements. It will fall to pieces in a couple of years at the most. Do it properly, SWA or conduit.

Baker1988 · Sep 23, 2014

Richo77 said:
Don't think plastic trunking will last long outside with all the elements. It will fall to pieces in a couple of years at the most. Do it properly, SWA or conduit.

Yeah i do agree with ya swa or conduit is the way to go but i was just saying

DPG · Sep 23, 2014

Richo77 said:
Don't think plastic trunking will last long outside with all the elements. It will fall to pieces in a couple of years at the most. Do it properly, SWA or conduit.

Plastic tubing lasts for years outside. Daz

Adam W · Sep 23, 2014

The customer seems to have pulled a lot of criteria out from somewhere.
I suggest running the cable in SWA as you would normally, then the customer is free to get a chippy, or even a bricky, to carefully box around it.

DPG · Sep 23, 2014

I'd have thought an swa run would like better than plastic trunking anyway on an outside wall. Daz

7029 dave · Sep 23, 2014

SWA for me,don't let him bully you, or say bye,!!

Engineer54 · Sep 24, 2014

DPG said:
Plastic tubing lasts for years outside. Daz

The white stuff won't last very long, it has no UV protection whatsoever and will become brittle within a couple of years or so!! Black conduit on the other hand is generally UV proof....
Whatever conduit is used, it will need rubber gaskets beneath any conduit box fitting lids....