Abstract: An electrical connector is secured to the wall of an electrical enclosure. The connector includes a hub which permits passage of electrical conductors in a conduit into the enclosure. The hub includes an elongate body having a conduit receiving end and a conductor egressing end which extends through the wall of the enclosure. A hub locknut is attachable to the conductor egressing end of the hub on the opposite side of the wall to secure the hub to the wall. The locknut includes circumferentially spaced raised flat surface portions adapted to be engaged by a tightening tool for rotatably tightening the locknut to the hub. The raised spaced surface portions define slots therebetween having tapered sidewalls which are adapted to be engaged by the blade of a screwdriver for rotatably tightening the locknut to the hub by impacting the screwdriver with a hammer.

Abstract: An electrical connector provides for termination of shielded electrical cable. The connector includes an electrically insulative housing supporting plural electrical contacts. A conductive contact shield is positioned within the housing for electrically shielding the contacts. The housing further includes a strain relief device operable to frictionally secure the cable to the housing. The ground clip is positioned within the strain relief device for engagement with the cable shield upon cable termination. The ground clip is also resiliently engageable with the contact shield upon insertion of the contact shield into the housing. The engagement of the contact shield with the ground clip establishes electrical continuity between the cable shield and the contact shield.

Abstract: An improved electrical insulator for high voltage transmission lines is formed from certain polymer-based concrete compositions. An apparatus provides for the molding of the polymer-based mixture to form a highly degassed product. The method and apparatus include the ability to combine the constituents of the mixture in a mixer. A vacuum is applied to the mixture to degas the mixture. A mold is filled with the degassed mixture without introducing air thereinto in the absence of a vacuum. The resulting insulator has highly reduced air entrainment.