LOADBREAK CONNECTOR ASSEMBLY WHICH PREVENTS SWITCHING FLASHOVER

摘要

Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a transition shoulder portion of the loadbreak bushing insert. The bushing insert is provided with vents to vent a cavity formed between the elbow cuff and the transition shoulder portion of the bushing insert with ambient air to avoid a decrease in pressure within the connection region and avoid a decrease in the dielectric strength of the air therein thus preventing flashover. Preferably, the vents are provided on an elbow seating indicator band formed of a bright contrasting color on the bushing insert which, in addition to venting the cavity, serves to indicate whether the loadbreak connector is improperly assembled.