Solid aluminum wiring new construction

[jfrederick (Joshua Frederick)]

Single strand aluminum??

Never have seen this type before. Aluminum wiring for the dryer was single strand, but a heavier gauge (6 or 8 perhaps??). Breaker above uses stranded aluminum, which is what I normally see when aluminum wiring is used. House built in '89. Comments? I don’t think there’s any concerns, however, would appreciate any feedback/insight. I realize pics aren’t the greatest. [207 Woodland Dr., Antwerp 101.jpg] [207 Woodland Dr., Antwerp 099.jpg]

See Gerry’s reply