Tinned Copper Wire?

[mkoester (Michael Koester, CMI FL HI-8530)]

Here’s the main photo

[wwilson3 (Wayne Wilson, TN 439)]

I would say it is aluminum , check the grounds on the right

[btoye (Bradley Toye, CMI)]

I see copper color at the bends in the grounds. Very strange, as I can only find solid tinned copper for bare conductors.

[sstaggs (Shawn D. Staggs, CPI)]

@mkoester

The image is from a 30 amp dryer circuit. It looked like an aluminum colored coating and was a little lumpy on the surface, not smooth like normal wire. It was 8 or 10 gauge.

The ends are probably tinned to prevent corrosion or the home is close to the coast. Sometimes they tin the wiring to prevent any corrosion from chemicals stored in the garage.

[wwilson3 (Wayne Wilson, TN 439)]

Look closely at neutrals and the ground bus (Aluminum )

[tjohnson12 (Travis K. Johnson, FL HI8719)]

Can’t tell by the panel photo, but the initial photo is soldering.

[mlarson (Michael Larson, WI Lic. # 1672-106)]

@tjohnson12

Can’t tell by the panel photo, but the initial photo is soldering.

I do not agree.

[mbitterman (Michael Bitterman, CMI® HI7792)]

I put the photo in Photoshop and blew it up, I do not think it has been tinned, none of the wires show any sign of heat typical of a soldering iron. Amazing not more ground wires are not showing in the picture. I did not think Aluminum wire was still available for branch circuits, nor would think an inspector would pass it.