![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.
Stay ahead of the curve with IAEI’s expert insights on the 2026 NEC®, your essential guide to the latest advancements in electrical safety, compliance, and cutting-edge technology.
Let’s examine some of the proposed changes for Articles 404 to 406 in the 2026 NEC®.
The 2026 edition of the NEC® greatly expanded its use of acronyms and but understanding these abbreviations remains essential for proper interpretation.
The 2026 NEC® is evolving with safe installation practices that also incorporate advancing technology, as well as ongoing reorganization to aid in usability.
As BIPV adoption grows, understanding its installation and permitting process will be essential.
With the upcoming 2026 edition, significant changes are expected to impact electrical inspectors, installers and manufacturers alike.
Now being introduced into the 2026 NEC® in new Article 624 covering ESV.
As some states move forward with the adoption of the 2023 NEC®, we wanted to flash back and review some of the important changes for this edition.