Strange wiring

[rustynails]

I went to a job yesterday, the house was quite old and found some interesting wire I'd never seen before. It's part copper inside, very alloy like on the outside and it's stranded.

Does anyone know what this is?

 

[Cupatea]

Sounds like lead sheathed cable. If it is its best not to connect to it & better to remove it and rewire the circuit. If the client doesnt like the sound of that I would walk away from the job.

 

[telectrix]

tinned copper by the looks of it. what's the insulation? is it T/E or singles?

 

[rustynails]

Sounds like lead sheathed cable. If it is

How would I know for sure?

If the client doesnt like the sound of that I would walk away from the job.

What are the issues with connecting to this crap wiring?


Read more: http://www.electriciansforums.net/e...forum/74380-strange-wiring.html#ixzz2OMPWzVzZ

 

[rustynails]

tinned copper by the looks of it. what's the insulation? is it T/E or singles?

Insulation is pvc. it's t/e

 

[telectrix]

who says it's crap? if you answer my previous post.......

 

[rustynails]

surely it's better to have more copper than tin?

 

[telectrix]

posted before reading that. OK. ot's pvc/pvc. IR test it if it tests OK, what's the problem? what size is it closest to? can't tell from the pic.

 

[Cupatea]

Scratch the sheath & if it shines its lead.

 

[Des 56]

surely it's better to have more copper than tin?

You have the very name that may makes the statement amusing
Get some copper expose it to the air and the result-- copper oxide (rusty copper(

 

[snowhead]

It'll be 7/029, 7/036 or 7/044, (2.5, 4.0 or 6.0) tinned, nothing wrong with it if the I.R is O.K

Life was easier when all cables were multistrand.

 

[Engineer54]

I can't see it can be anything else than tinned copper conductors!! Cut it with a pair of snips and it can look like more tinning than copper. I take it this is imperial sized cable, and as such has a higher CCC than the what really is ''Crap'' solid core metric equivalent!! lol!!

 

[telectrix]

tell me about it. when you need a conduit bender to bend 2.5mm solid cable when it's cold.

 

[rustynails]

tinned copper by the looks of it.

I think your right, by looking at this next picture you can clearly see the copper inside.



IR test L/N-E @ 250v was 18.2M then @500v was 0.41M.

what size is it closest to?

2.5mm

 

[Engineer54]

I think your right, by looking at this next picture you can clearly see the copper inside.

View attachment 18037

IR test L/N-E @ 250v was 18.2M then @500v was 0.41M.

2.5mm

Then you have an insulation fault somewhere!! Nothing to do with the conductor construction itself!!