Abstract: The present invention provides a device for electrically connecting electrical conductors of two adjacent sections of a multi-phase electrical distribution system. The connecting device includes a generally cylindrical body enclosing two ground connectors, two outside insulators and two inside insulators intermediate the outside insulators. Each of the outside and inside insulators includes an equal number of semi-circular shaped electrical connectors which are arranged such that each electrical connector on one of the outside insulators has a corresponding electrical connector on one of the inside insulators thus forming a pocket. Each pocket receives one electrical conductor from each of the two adjacent sections of the electrical distribution system.

Abstract: 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.

Abstract: The improved plug-in base assembly of the present invention provides a means for complying with European Health and Safety requirements and particularly the requirement of IEC 439-1 paragraph 7.4.2.2. Subparagraph 7.4.2.2.3 generally requires that live parts be shielded such that they cannot be contacted when a door or cover normally protecting them is opened or removed. This requirement provides additional protection to the installer of a tap-off device against unintentional contact with the uninsulated edges of bus bars exposed through the plug-in openings. The additional protection is provided by a finger barrier which covers the normally exposed uninsulated edge of a bus bar. The finger barrier permits the electrical connectors of a tap-off unit to pass through the plug-in opening and make an electrical connection while preventing any unintentional contact of the installers fingers with the uninsulated edge of the bus bar.

Abstract: A plug-in apparatus for use with an electrical busway containing a plurality of bus bars includes an enclosure with an electrical accessory disposed therein. A plurality of plug-in jaws are connected to the electrical accessory and extend through a rear wall of the enclosure for engaging the bus bars. An operating handle is mounted outside of the enclosure. An interlock assembly includes an elongated interlock arm movably connected to the enclosure and extending in a generally horizontal direction across a plane of the rear wall of the enclosure. The interlock arm is movable relative to the enclosure between an unlocked position and a locked position. A safety link is operably associated with the operating handle and interlock assembly for preventing the operating handle and the interlock assembly from being simultaneously located in their "On" and unlocked positions, respectively.