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 ...

Any time you are working with burglar alarm, access control, sound, nurse call, or intercom systems, as well as computer networks, lighting dimmer controls, and low-voltage industrial controls, you ...

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 ...