Al-Cu connector?

[Mark Underwood]

Saw one solid aluminum wire in a 1972 house, which made me start looking closer, and saw a bunch of these connectors - note the different wire sizes going into it. Is this a connector for Al to Cu wire? Can't find a photo on the web.

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[Bill Kibbel]

That gray connector is heat-shrink wrapper over a COPALUM crimp. Here's the CPSC pub on the crimp connector repair method: http://www.cpsc.gov/cpscpub/pubs/516.pdf

Warning- It's pretty old info. Also, I've heard of issues with repair connections made by sparkies not trained in the use of the crimp tool.

[Jim Port]

Also, I've heard of issues with repair connections made by sparkies not trained in the use of the crimp tool.

Amp was only supposed to lease the tool to people that had received the proper training. Not saying it can't happen.