Section insulator with improved arc control
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United States of America Patent
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-
Mar 23, 1982
Grant Date -
N/A
app pub date -
Jul 28, 1980
filing date -
Jul 28, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved trolley system section insulator having a main support insulator, end support insulators attached to trolley wires and an intermediate runner member. The runner member is formed of two spaced conductive portions which are attached to the main support insulator by studs extending upwardly through the main support insulator, the studs being electrically connected together at their uppermost ends, thereby forming 90.degree. changes in direction of the current paths which exist when arcs are formed. The path changes produce magnetic fields which tend to blow the arcs downwardly, protecting the insulator portions from arc damage.
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