For over half a century, Copper-Clad Aluminum (CCA) building wire has been installed in family homes across the United States ...

To do this, electricians use special connectors designed for aluminum-to-copper transitions, such as AL-CU rated wire nuts or other approved devices. COPALUM connectors are preferred by the CPSC ...

The device sure looks like an electromagnet made with magnet wire and a steel core. But when he shows the ends of the core, you’ll see that the side that attracts aluminum has a copper ring ...