To be competitive, some electrical contractors often supply low-voltage (LV) service entrance switchboards and switchgear that meet the minimum safety requirements of the National Electrical Code (NEC ...

Ground-fault circuit-interrupter protection for personnel shall be provided for cables installed in electrically heated floors of bathrooms and kitchens and in hydromassage bathtub locations. This ...

Q. My home was built in the 1950s, and I don’t have ground fault circuit interrupter outlets. Should I have them installed? A ground fault circuit interrupter, or GFCI, protects people and animals ...

Ground fault protection is a cornerstone in ensuring the safety and operational reliability of modern power systems. Ground faults, which occur when an unintended electrical path connects a live ...

Safety codes often require “ground fault circuit interrupter” inclusion for electrical power outlets. The operation of such a device depends on making a comparison of the current levels in two wires, ...

What is a ground fault and why is it a concern? How much variation in current is considered enough to cause a fault? Why can’t I just use a circuit breaker? What does a ground-fault protection device ...

The HelioFuse is a molded in-line fuse that helps protect photovoltaic (PV) systems from ground fault current damage. The fuse is used by PV system engineers, solar contractors, and design engineers.

Electrical standards for PV systems: In part one of this series we looked at the background and scope of the U.S. National Electrical Code (NEC). We continued with a survey of 2011 NEC coverage of ...

What is a ground fault and why is it a concern? How much variation in current is considered enough to cause a fault? Why can’t I just use a circuit breaker? What does a ground-fault protection device ...