This answer is based on the 2017 NEC. A. Ground-fault protection of equipment is required for 277/480V service disconnects rated 1,000A or more. The rating of the ...

What is ground-fault protection? The answer depends on whether you are talking about ground-fault protection of equipment or ground-fault protection of people. Just because ground-fault protection is ...

A friend who was buying an older house was concerned about electrical safety and asked for my opinion as an electrical engineer. All of the AC receptacles (also called outlets) in the house were the ...

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 ...

The FaultBreak contactor from Sensata Technologies is a high-voltage switching and protection device for electric vehicle power systems that combines contactor and fuse functions in a single component ...

Learn why modern marine and mobile DC power systems rely on Blue Sea Systems bus bars, fuse blocks, and proper circuit protection for safe and reliable power distribution.

“Our FaultBreak contactor represents an important advancement in high voltage protection,” said Markus Schwabe, EVP, Automotive, Sensata Technologies . “It helps our customers build electric vehicles ...