Square D Company

Littlefuse, Inc.

Littelfuse, Inc.

Anthony S Locker

Rodney Joe West

Daniel L Wittmer

Patrick Williams

Justin Mahaffey

Daniel G Witt

A device for preventing arc flashes in electrical systems is provided. The device may include at least one heat sensor for measuring a temperature of an electrical conductor, and a controller operatively coupled to the at least one heat sensor and configured to arrest current in the electrical conductor if the measured temperature exceeds a predefined threshold temperature.

Device and method for preventing arc flashes

A sectionalized electrical distribution feeder system for carrying electrical power from a source point to a use point or a distribution point. Each section of the distribution system includes a cylindrical enclosure capable of being easily cut with a handsaw. The enclosure also provides support and protection from physical damage to a plurality of electrical conductors that are disposed within the enclosure. The conductors are held firmly in place by a continuous electrically insulating support that snugly fits inside the enclosure. Each conductor can be easily cut with a metal cutting hand saw, and is enclosed in an electrically insulating sheath, a portion of which can be removed from a newly cut end to provide a contact surface. A joint connecting member is provided for electrically connecting the conductors of adjacent sections of the electrical distribution feeder system. The joint connecting member includes a provision for linear expansion of the sections due to normal operating temperatures of the distribution system. A joint cover connects the two adjacent enclosures together and provides additional protection for the joint connecting member.

Pre-bussed rigid conduit electrical distribution system

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Cincinnati, OH, United States of America

Anthony S Locker