Electrical contact lubricant composition for inhibiting fretting failure

Abstract

This invention describes a contact lubricant composition for protecting electrical contacts from failure by fretting damage. This lubricant composition is also able to restore and rejuvenate electrical contacts that have failed in service by fretting damage, allowing such contacts to be returned to service. This contact lubricant consists of an optimum mixture of fifty volume percent polyphenyl ether and fifty volume percent polypropylene monobutyl ether. This combination of materials in a lubricant mixture is still effective at volume percentages of polyphenyl ether as low as ten volume percent. This contact lubricant composition was developed and demonstrated to be effective by extensive laboratory fretting tests on various common electrical contact materials and configurations.

Dependencies are inferred from the claim text.