Loadbreak connector assembly which prevents switching flashover
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United States of America Patent
Stats
-
Jan 2, 2001
Grant Date -
N/A
app pub date -
Apr 7, 1999
filing date -
Jul 30, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
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 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.
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Family
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