split concentric cable

[ExArmy]

was reading an article in PE today about split concentric cable and it got me thinking......

.....why am I not using this more often? it's much easier to work with!

 

[Engineer54]

as far as i'm aware , concentric cable was developed for use by the dno's for their cut-out tails because its alot cheaper than swa and can be worked on live alot easier than swa.

They also don't need to terminate to the degree that you will in there service cut-out, the earth strands (TN-S) remain bare, just twisted together and semi dressed to connect into the internal terminal block, or heat shrinked where they run external to the MET....

 

[Swicade]

I've never used or had the opportunity to use this type of cable in the last 25 years of being a sparks......tbh i had to just goggle it to realise it was the name of the cable DNO supplies were installed in....constant learning curve this spark's game....if only the crash course's where around back in the day i might've known all about it already.....

 

[sedgy34]

They also don't need to terminate to the degree that you will in there service cut-out, the earth strands (TN-S) remain bare, just twisted together and semi dressed to connect into the internal terminal block, or heat shrinked where they run external to the MET....

If you install a kmf with shrouds you can use tails from mains using a 16mm earth looks alot neater, than having to heat shrink the earths

 

[Knobhead]

I’ve only had the chance to use it on one job and that was after a lot of argument. I didn’t have the heat shrink break out boots so I used adhesive lined tube over the two bundled conductors and also the phase. I then finished off with a larger tube over the crutch. Looked OK but would have preferred the proper boot.

 

[sedgy34]

?????????????????
what length would that be ?

I don't feel the need to get the book out son to give you the answer
i sense alot of immaturity from your question above

 

[Guest55]

I don't feel the need to get the book out son to give you the answer
i sense alot of immaturity from your question above

immature ?
sounded like a reasonable question if youre infering that concentric can be used for longer cable runs than T&E.
son.

 

[ipf]

immature ?
sounded like a reasonable question if youre infering that concentric can be used for longer cable runs than T&E.
son.

Why don't you call each other 'pup' ?

 

[sedgy34]

immature ?
sounded like a reasonable question if youre infering that concentric can be used for longer cable runs than T&E.
son.

You have done this before pal you ask that question and the op comes back with the answer and your sarcastic and patronising to the op with your response as if you find it funny the op has found the correct answer your response is a measly "good for you" or something on those lines.
Getting back to the subject I was referring to using it for mains supply.

 

[peterb]

Hello
I am planning on using this to replace old overhead VIRs feeding an outbuilding. DNOs use a wire preform to suspend the cable at each end when they use SC in OH applications. Anyone got a source of supply for these wire preforms?

Thanks

 

[Knobhead]

Search Aerial Bunched Cables (ABC)

 

[Engineer54]

Hello
I am planning on using this to replace old overhead VIRs feeding an outbuilding. DNOs use a wire preform to suspend the cable at each end when they use SC in OH applications. Anyone got a source of supply for these wire preforms?

Thanks

The DNO don't use Split Concentric Cables on Overhead lines, they use concentric. Show us the terminations you make at both ends when you've finished, i bet they'll look a right mess if you have never used this cable type before!! ..lol!!!

 

[peterb]

The DNO don't use Split Concentric Cables on Overhead lines, they use concentric. Show us the terminations you make at both ends when you've finished, i bet they'll look a right mess if you have never used this cable type before!! ..lol!!!

Termination is simple using a three leg heat shrink boot and taking a little time to get a decent lay on the neutral and earth conductors. Searching bundled didn't produce anything though.

 

[peterb]

..... Oh and DNOs use both cne and scne depending on whether it's pme or not.

 

[Engineer54]

..... Oh and DNOs use both cne and scne depending on whether it's pme or not.

Not from overhead supplies they don't!!

And i did say, if you have never used this type of cable before. Even with 3 leg breakouts and heatshrink, it can still be a bugger in tight spaces to get a good dressing....

 

[durhamspark]

My old college tutor ( a long long time ago) said that it was good for the DNOs cos it stopped people hammering pins into the phase and neutral to tap a supply before the meter.