One common NEC violation is an installation where grounding electrodes aren’t bonded together. All grounding electrodes present at a building must be bonded together to form the grounding electrode ...

All Code references are based on the 2005 NEC. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, ...

Residential PV systems are generally installed on the rooftop of residential buildings, with a large metal surface area, higher distance from the ground and an exposed location. Such PV systems are ...

Electrical substations utilize direct lightning stroke shielding to help ensure proper operation, and to prevent costly damages and extended outages. While modern substation designs and equipment make ...

The author is national program manager for the Copper Development Association. Lightning strikes and consequent power surges can seriously disrupt the operations of a radio station. Considering the ...