Abstract: A vacuum contact enclosure has end contact assemblies within contact enclosures specially formed to distribute the high voltage field and eliminate high stress in an encapsulating solid insulation. A non-tracking guide tube extends concentrically of a movable contact rod. A solid, dry, high voltage insulation wall intimately attaches to the vacuum and contact enclosures. The wall has an opening through which the contact rod extends with a planar end wall surface abutting a submersible operating housing. A clamp engages the wall and housing and draws the wall surface into sealing engagement with the housing. The operating mechanism includes a pivoted lever assembly connected to a spring-loaded linkage member secured to the contact operating member and a spaced drive lever and pin assembly. A toggle assembly is pinned between the assemblies and includes a releasable latch member.

Abstract: A drawout switchgear assembly which can be disconnected from a shielded cable electric distribution system under energized cable conditions. Each of the switchgear source and load bushings is held within a stationary cable connector with sufficient pressure exerted by the switchgear drawout operating mechanism to maintain a waterproof, fully shielded connection. Each stationary cable connector includes a current exchange bayonet member carrying a louvered band having resilient contact fingers which engage the movable switchgear bushing rod within a cavity of this rod for receiving the bayonet member. A switchgear drawout operating mechanism includes a mechanical interlock which allows withdrawal or reconnection of the switchgear only when the switchgear is in its open position.

Abstract: A vacuum contact enclosure has end contact assemblies within contact enclosures specially formed to distribute the high voltage field and eliminate high stress in an encapsulating solid insulation. A non-tracking guide tube extends concentrically of a movable contact rod. A solid, dry, high voltage insulation wall intimately attaches to the vacuum and contact enclosures. The wall has an opening through which the contact rod extends with a planar end wall surface abutting a submersible operating housing. A clamp engages the wall and housing and draws the wall surface into sealing engagement with the housing. The operating mechanism includes a pivoted lever assembly connected to a spring-loaded linkage member secured to the contact operating member and a spaced drive lever and pin assembly. A toggle assembly is pinned between the assemblies and includes a releasable latch member.

Abstract: Fuse adapters are connected to the contact rods of a vacuum fuse. A rubber coating is provided over the entire outer surface of the vacuum fuse, but not over the fuse adapters. An epoxy body is molded over the coated fuse and the fuse adapters. Cavities are provided in the body to define wells, the fuse adapters being exposed in the wells to permit electrical connection to the fuse through the adapters.