In a circuit panel, every circuit must be identified as to its specific purpose or use [as per Sec. 408.4(A) of the National Electrical Code]. This identification must be made: In a circuit directory ...

In last month's “Code Basics” article, starting on page 56 of the September issue, we spent most of our time discussing Class 1 circuits. Now, it's time to switch gears and focus on Class 2 and 3.

THHN striped circuit wire helps electrical contractors meet the requirement changes in the 2008 National Electrical Code such as Section 210.4 (B). THHN striped circuit wire helps electrical ...