These rules aren't suggestions. They're life-saving requirements that protect workers during construction and everyone who uses the building later.

A. Electrical power systems are grounded (connected to the earth) to limit the voltage induced by lightning, line surges, or unintentional contact by higher‑voltage lines and stabilize the system ...

Ask an electrician which way a receptacle, aka outlet, should be installed: “Ground up or down?” Typically, the answer is “both are fine,” though most of us have a preference. The National Electrical ...

The use of structural metal as a grounding electrode is an issue that has been revised during several recent Code cycles. The 2011 NEC has once again revisited the rule explaining when a structural ...