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 ...

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 ...

Whether you're an experienced DIYer or just getting started, electrical grounding is one of the most important — and confusing — concepts to grasp. Maybe you've heard of grounding, but aren't sure ...

If you're planning to increase your electrical load by adding a new major appliance, make sure your panel can handle it. Here's how.