Cable by the metre

[John Rumm]

I would be more inclined to say, I did it because I wanted it done right, what you going to do about it? ;-)

[Scott]

Okay I think apologies are appropriate here. I misunderstood 'DIY extension lead' and was thinking this was a spurred socket.

I agree flex is different and I am not advocating use of PVC cable as flex. I agree there is no 'rubber 'cable' as such and the cable we have is the recognised standard.

I apologise for creating confusion by going off at a tangent.

[damduck-egg]

The main use of rubber in fixed installations as opposed to flex may well the be marine industry . Constant vibration from engines ,flexing of a vessel at sea causes stresses over time that can cause more rigid materials to deteriorate. The rubbers used are manufactured to a high standards often as laid down by the various certification agencies such as LLoyds Register ,Bureau Veritas etc.

G.Harman

[Dave Plowman (News)]

Interesting. But wasn't one of the fires on a ship during the Falklands War said to have been much worse due to PVC in cable burning?

Not sure why a ship would have more vibration than a car or truck etc that used PVC wiring - but flex, of course.

[Dave Plowman (News)]

No problem - it is easily done. Especially since so many just copy the entire post when replying to a part of it.

[Scott]

Points conceded in my other posting.

[Vir Campestris]

IIRC Aircraft wiring is done with Kaptan...

I don't RC.

... Which damns kapton pretty thoroughly.

"Kapton-insulated electrical wiring has been widely used in civil and military aircraft because it is lighter than other insulators and has good insulating and temperature characteristics. However, Kapton insulation ages poorly: an FAA study shows degradation in under 100 hours in a hot, humid environment,[5] or in the presence of seawater. It was found to have very poor resistance to mechanical wear, mainly abrasion within cable harnesses due to aircraft movement. Many aircraft models have had to undergo extensive rewiring modifications?sometimes completely replacing all the Kapton-insulated wiring?because of short circuits caused by the faulty insulation. Kapton-wire degradation and chafing due to vibration and heat has been implicated in multiple crashes of both fixed wing and rotary wing aircraft, with loss of life."

And yet

AKA

Says it's still the best in many circumstances!

Andy

[Chris B]

AIUI in the aircraft industry Kapton in cable looms and interconnects is frowned upon (if not prohibited these days) but is still acceptable in places like transformer or relay coils where it prevented from any sort of relative movement.

[Scott]

Now found an answer to my question. And the answer is ... Wilko.

[Tim Streater]

Or Maplins last time I looked.

[damduck-egg]

Why do people always put an S on the name , it is almost as bad as using apostrophes incorrectly . Shows what they used watch on the Telly .

G.Harman

[Andy Burns]

That's a different question ... "where can I buy cable by the metre?"

[Scott]

When I asked they said it was discontinued.

[Scott]

You are not wrong but I did not want to start a new thread for substantially the same topic.

[Scott]

OTOH Sainsbury's Supermarkets Ltd puts both an 's' and an apostrophe in their trading name.

[Mike Clarke]

Quite right too. The company was founded in 1869, by John James Sainsbury with a shop in Drury Lane, London. One would therefor talk of going to Mr Sainsbury's shop for one's groceries.

[alan_m]

The sign says Sainsbury's for quality

[tony sayer]

In article , Scott scribeth thus

Most electrical wholesalers will do by the metre, our local TLC does..