Concentric wiring

[Knobhead]

I used heat shrink tubing but couldn’t get the correct boots so used a larger tube to shrink over the crutch area.
It made a nice change to not be working to M&Q.

 

[chrislee765]

How do you terminate these split concentric sub-main cables??

Using a 3 way cable breakout. It slips over the end of the split concentric, separates the conductors and then heat shrinks down. It's got a glue inside that melts once heated and makes a very permanent termination.
It looks neat, but nowhere near as neat as an swa gland.

edit:
Hmm I was far too slow here, didn't notice there was a second page. Oops!

 

[SparkyJoe]

you can do a decent job with some small tie wraps, a lot of the new build housing i was working on was done with it for the sub mains.

 

[Spudnik]

Are you suggesting that the insulation on the neutral conductor is not satisfactory?

Like every wiring system, there are applications where specific cables can be used. I see no reason why split concentric cable cannot be used by non-DNO for sub mains installations. It is never suggested that it is an armoured cable and should not be treated as such.

I personally use it for the majority of domestic sub-main installations, where appropriate. The reason I do is because I find it much more flexible and therfore easier to work with than SWA.

100% agree and do exactly the same.

Brilliant stuff.

 

[mogga]

it was and might still be popular on street lighting installs where if doing 2 or 3 into an SMK cutout you have no opotion but to make your ends off as neat as possibl epersonaly id use pvc tape due to space and never getting heat shrink The training we got used loose fitting sleeving on the N E cores making for a pish looking job

 

[Engineer54]

you can do a decent job with some small tie wraps, a lot of the new build housing i was working on was done with it for the sub mains.

Honestly, ...tie wraps?? lol!! Oh Dear!!!!

 

[SparkyJoe]

Honestly, ...tie wraps?? lol!! Oh Dear!!!!

Yup. Nout wrong with little tie wraps :|

 

[Engineer54]

Yup. Nout wrong with little tie wraps :|

Maybe only in your world!!!....