SWA to Garden Outbuilding

[Giuliano Besenzi]

Gents

I need to run 10mm SWA to building at the end of the garden, the electrician suggests clipping it direct to the fence concrete post which are solid enough and says is permissable as digging a trench is not an option. I am concerned about the UV issue, the support element as the posts are 6ft apart.

I have asked him could it be run in galvanised conduit as this would solve the UV and support problem but he says that he has never done this and is a waste of time.

Could I ask you guys for your opininion on this.
Thanks

 

[Strima]

As has been suggested before, battens on the posts then clip the SWA to that.

There's no need for additional mechanical protection for the steel wire ARMOURED cable.

 

[Marcus Vaughan]

Not sure you will pull a three core 10.0mm swa through 25mm tube over 22m.

Definitely not. I tried with 6mm a couple of years ago and that was so tight I nearly gave up.

6mm only just goes.

 

[Giuliano Besenzi]

Not sure you will pull a three core 10.0mm swa through 25mm tube over 22m.

Probably not but if its done in sections it might work, anyway its something I would need to do cos sparky wont. Thanks for all your input Westward. To summarise I think that there is nothing against running in conduit if its possible and providing the conduit is further supported between posts but the conduit is not really necessary, would you say thats about right Westward?

 

[Toneyz]

I think 25mm conduit is going to be a bit tight.

 

[Midwest]

As has been suggested before, battens on the posts then clip the SWA to that.

There's no need for additional mechanical protection for the steel wire ARMOURED cable.

Sharpish shovel could damage the pvc sheath, then the swa could all go rusty.

 

[Pete999]

I think 25mm conduit is going to be a bit tight.

Tight??? nigh impossible I should think

 

[telectrix]

Not sure you will pull a three core 10.0mm swa through 25mm tube over 22m.

you can. i've pulled 16mm 3 core in 25mm before now, as long as there's no bends.

 

[Toneyz]

you can. i've pulled 16mm 3 core in 25mm before now, as long as there's no bends.

Is that after you scrapped all the copper out of it?

 

[Pete999]

Is that after you scrapped all the copper out of it?

No Ant that would be a Scouse 25mm tube

 

[Pete999]

you can. i've pulled 16mm 3 core in 25mm before now, as long as there's no bends.

OK but why?????????????????

 

[westward10]

Saves on cleats.

 

[Silly Sausage]

Use some heavy gauge cable tray.

That was my first thought.
How about stuffing the cable into unistrut?

 

[Pete999]

Saves on cleats.

What you save on cleats, you will spend more on trying to stuff some SWA into some conduit that's to small and unnecessary. Hence the disagree.

 

[westward10]

What you save on cleats, you will spend more on trying to stuff some SWA into some conduit that's to small and unnecessary. Hence the disagree.

Was said in jest Pete.

 

[westward10]

That was my first thought.
How about stuffing the cable into unistrut?

Unistrut crossed my mind also.