Article 250 of the National Electrical Code (NEC) focuses on grounding and bonding. This Code Article is divided into 10 separate parts — each identified by a Roman numeral. Because of the terminology ...

The NEC uses terms like equipment grounding conductor (EGC) but does not mean to actually provide grounding via that conductor. How can this be? Let’s first look at what the NEC considers to be ...

NEC 2026 consolidates limited-energy grounding rules Article 750 in the 2026 NEC unifies previously dispersed grounding and bonding provisions for Class 2–4 circuits, fire alarms, communications, ...

In order to protect against transient overvoltages it is important to implement resistance grounding. These transients are caused by arcing ground faults, and they supply suitable current for ...