Underground Switches

The Revised CHANCE® / Hubbell Power Systems Grounding Encyclopedia on temporary grounding for de-energized construction and maintenance, covers grounding practices; electrical current’s effects on humans; OSHA requirements; ASTM, IEEE and IEC standards; step- and touch-potential; equipotential zones; equipment and applications; and installation procedures for overhead, underground, substation and truck grounding.

Use this new web application tool to help you evaluate lightning performance for typical 34.5, 69, 138 and 230 kV lines.

Burns & McDonnell T&D Toolkit: A free resource of tools, calculators and charts to help you design your next T&D project.

T&D World University - Get the training you need without leaving your office.