Can I run cable around outside of house?

[longdogs]

Hi. I am pricing a job for installing a 9kw electric shower. The property is a ground floor flat with concrete floors and ceilings. The consumer unit is by the front door and the bathroom at the rear of the flat. Having looked at all the options, it seems the best and shortest route for the cable would be around the outside of the house inside conduit at the point where the render meets the brickwork ( under the lip). I'm guessing that due to the length of cable required (12 metres) that I will be using 10mm cable. would this be legal??

Thanks

 

[comms]

Fine and dandy.
I'd use 10mm singles much easier to pull in.

 

[Lectrician]

Fine and dandy.
I'd use 10mm singles much easier to pull in.

Yes, but **** when your doing half the install in a traditional manor (cable through wall to CU, cable through wall to pull cord and down to shower etc. Unless you can keep the conduit system as one hole, it is not really suitable to be using singles.

 

[longdogs]

Thanks for your replies.

 

[comms]

Fine and dandy.
I'd use 10mm singles much easier to pull in.

Yes, but s**t when your doing half the install in a traditional manor (cable through wall to CU, cable through wall to pull cord and down to shower etc. Unless you can keep the conduit system as one hole, it is not really suitable to be using singles.

& there in lies the problem with giving advice..........I was assuming a clear connection through wall into cu & pull cord enclosures.

I can just see it now oh the stress of trying to get 10mm T/E round the corner in tube

 

[JohnD]

I quite like mini-trunking. I find it less obtrusive and there is no difficulty laying T&E inside it since the cover is removable,

the clip-on cover can be painted with non-drip gloss to blend in

 

[ColJack]

impact resistant?
suitable for external use?

 

[JohnD]

interesting questions

I developed my liking for it when compared to the disgusting practice of clipping T&E outside, exposed to the sun

I would say the minitrunking is stronger and less easily damaged than plastic conduit, as it is thicker and much more difficult to crack even if you hit it hard.

It is not watertight, but neither is most conduit once it has a few joints or boxes on it

 

[ban-all-sheds]

Yes, but s**t when your doing half the install in a traditional manor (cable through wall to CU, cable through wall to pull cord and down to shower etc. Unless you can keep the conduit system as one hole, it is not really suitable to be using singles.

Switch to shower is irrelevant, as you can use T/E for that.

As for the rest, why couldn't conduit be used for the whole run from CU to switch? Could be partly flexible.