Residual current circuit breakers (RCCB) play a narrow but important role in electrical protection. They are frequently specified, often misunderstood, and regularly credited with capabilities they ...

A circuit breaker that trips repeatedly is often assumed to be defective, but that assumption is frequently wrong. Breakers respond to conditions downstream, and replacing one without understanding ...

Every home inspector has that mental list. You know, the one where they've seen the same dangerous shortcuts so many times ...

Key Takeaways Upgrading your electrical panel prepares your home for modern appliances and reduces fire hazards. Installing Ground Fault Circuit Interrupters (GFCIs) in wet areas prevents ...

Electrical system designers have at their disposal several types of fire resistive systems that comply with specific Code requirements. It can be helpful to ...

All questions and answers are based on the 2011 NEC. Q. What is the Code requirement for the interrupting protection rating of overcurrent devices? A. Overcurrent devices, such as circuit breakers and ...