Adherent coating for captivating small particles i

专利名称：Adherent coating for captivating small

particles in gas-insulated electricalequipment

发明人：SLETTEN; ANDREAS M.,COOKSON; ALAN H.申请号：US51134574申请日：19741002公开号：US3911937A公开日：19751014

摘要：This invention relates to compressed-gas-insulated systems. An adherent orsticky coating is provided on selected surface areas inside compressed-gas-insulatedsystems to trap, or to captivate conducting and non-conducting particles, which if allowedto remain free can promote breakdown metallic parts or electrodes maintained atdifferent potentials, or tracking and flashover along insulating surfaces. Preferably, acoating is provided which is initially hard or solid with adequate mechanical strength sothat the system components can be easily handled by workmen during manufacturingand assembly without difficulty, and not at this stage capture unwanted particles. At alater time, following assembly operations, the surface layer of said coating is renderedadherent, or tacky to trap or to captivate conducting and non-conducting particles.During this stage mechanical means such as vibrations and/or gas flow and/or electricfields may be used to transport unwanted particles to the tacky or captivating areas.

申请人：WESTINGHOUSE ELECTRIC CORPORATION

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