The multi-wire branch is here to stay; so is ground fault protection. But we should unite these technologies only when it’s a good match. Ground-fault protection and the multi-wire branch circuit ...

THHN striped circuit wire helps electrical contractors meet the requirement changes in the 2008 National Electrical Code such as Section 210.4 (B) requiring multi-wire branch circuits to have a means ...

Q. On a 3-phase, 4-wire, 277V multi-wire lighting circuit, which is protected at 20A, there is debate as to the proper application of 210.4(B) and 240.15(B). The question is whether or not three ...

Residential electrical branch circuit breakers incorporate electronic and electrical technology in Arc Fault Circuit Interrupters that can turn off power to prevent fires if arcing occurs. This ...