![Figure 1 – [Twist-on connectors specifically designed for copper-clad aluminum splicing. Image Credit: IDEAL Electrical]](https://iaeimagazine.org/wp-content/uploads/2025/08/Fig1_CCATwister.png)
Copper-clad aluminum (CCA) wire is growing in popularity across the United States, but some people may have questions about best practices for terminating these wires. This article addresses these common questions and explains how the UL 486C standard continues to provide a high margin of safety. The discussion concludes with practical guidance for inspectors and authorities having jurisdiction (AHJs) on spotting wire connectors specifically designed to provide corrosion and thermal protection in CCA installations.