Electrical connectors – Including arc suppressing or extinguishing means – Contact encasing chamber
Patent
1997-07-30
1999-09-28
Nguyen, Khiem
Electrical connectors
Including arc suppressing or extinguishing means
Contact encasing chamber
439206, H01R 1353
Patent
active
059577126
ABSTRACT:
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 dialectric strength of the air therein thus preventing flashover. Alternatively, the power cable elbow includes an insulative layer covering a portion of the probe to increase the distance between the energized electrode and ground. Another structure which increases the distance from the energized electrode to ground includes an insulative material covering an upper portion of the bushing insert receiving opening within the conductive insert portion of the power cable elbow connector.
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Byrd Eugene G.
Nguyen Khiem
Thomas & Betts International Inc.
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