Inspected a home yesterday, built in 1942, that at first glance appeared to have some single strand aluminum wire in some areas feeding out of an old fuse sub panel. (The main panel has been recently upgraded to a 200 amp service). Then I noticed that at some connections where the outer coating had been scraped, it looked like copper color underneath.
Could this be aluminum coated copper, tin coated or silver coated copper?
It doesn’t look like any of the wire at this site. http://www.inspect-ny.com/aluminum/ALid16.jpg.
The wire appears to be original to the 1942 house. The covering is not plastic, it’s that older style, kinda cloth type insulation. My pictures probably don’t show it very well.
Can anyone help me with what this is? Is it a concern?