Is this tinned copper cable?

[geomagno]

Cleaning out the barn and found some of my dad's old cable. Stripped it to take to recycle and found this one is silver. Thought it was maybe aluminum but it's very heavy and when I scraped the cut ends there is copper color. Plus, my dad was an electrician and saved any spare copper he could. What do you think? What's the purpose? Will this effect value? Thanks.

 

[PCustoms]

Is it magnetic?

 

[Oregon rock crusher]

Looks tinned from here. Tinned conductors in SO or SOW cable was often used in the mining industry among other places. Goes for #2 at the scrap yard I use.

 

[yatg]

The jacket probably had info on it that you could use to ID the wire.

https://prioritywire.com/specs/Bare%20&%20Tinned%20Copper.pdf

 

[PCustoms]

Looks tinned from here. Tinned conductors in SO or SOW cable was often used in the mining industry among other places. Goes for #2 at the scrap yard I use.

Now that I think about it I think I used to get Marine cable that was tinned

 

[Oregon rock crusher]

Here is another application tinned conductors were used. This vintage piece of GE Versatol Geoprene Train Jumper cable used 16 individual #10 tinned conductors bound in beautiful cloth outer jackets. Last use was as a control cable back in the mid 80's. Too cool for the scrap man. I've used some in vintage restorations. Ed.

 

[Firebrick43]

Cut the wire, If you see copper in the center of the wires its tinned

 

[geomagno]

Is it magnetic?

No it is not.

 

[dscheidt]

Looks tinned from here. Tinned conductors in SO or SOW cable was often used in the mining industry among other places. Goes for #2 at the scrap yard I use.

Real natural rubber causes corrosion in copper, so rubber insulated wire used tinned conductors to keep the two from meeting. XPLE is tinned for similar reasons. Some UL listing classes require tinned conductors, because it helps prevent exposed splices corroding.