Grease for electrical contact and slide electricity structure, power switch, vacuum circuit breaker, vacuum insulated switchgear, and vacuum-insulated switchgear assembling method
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United States of America Patent
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Jan 19, 2016
Grant Date -
Nov 1, 2012
app pub date -
Apr 26, 2012
filing date -
Apr 27, 2011
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Abstract
A slide electricity structure according to the present invention uses grease for electrical contacts wherein contact resistance does not gradually increase even when exposed to sliding and lifetime is long, and has a silver-plated spring contact that contacts or separates by way of sliding and grease for electrical contacts that has been applied to the spring contact and contains perfluoropolyether oil having an average molecular weight between 2600 and 12500 as a base oil and PTFE having a primary particle diameter of 1 μm or less as a thickener.
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