Motor lead wire
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United States of America Patent
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-
Jan 25, 1994
Grant Date -
N/A
app pub date -
Aug 7, 1992
filing date -
Aug 7, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention features a new lead wire for use with class F motors, coils and transformers. The new motor lead wire has the UL-required temperature rating of at least 150.degree. C. and a voltage rating of approximately 600 volts. The lead wire is characterized by a thinner and less costly insulative construction. The motor lead wire has a conductive core member that is overcoated with a primary insulation layer of polyolefin. The polyolefin layer is of a reduced thickness, generally below the standard 30 mils. The polyolefin insulation thickness can be reduced by half, to about 15 mils. This reduced insulation layer is then protected with a jacket of polyvinylidene fluoride or a polyvinylidene fluoride copolymer having an approximate maximum thickness of 0.005 inches. The primary insulation is cross-linked and stabilized with zinc salt of methylmercaptobenzimidazole and a hindered phenol oxidant.
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