Patent ID: 6468583
Filing Date: 2002-10-22
Classification: H01B,Y02A,Y10T

Abstract:
A method of protecting electrical equipment from damage due to tracking and spark erosion, comprising:(a) forming a mixture comprised of a silane-modified polyolefin with a silanol condensation catalyst, said silane-modified polyolefin comprising either a silane-grafted polyolefin or a silane-olefin copolymer; (b) melt extruding or moulding the mixture formed in step (a) to form an article; (c) crosslinking the article by exposing it to moisture, preferably at elevated temperature, such that the article is softened but does not melt when heated to a temperature above its softening point; (d) applying the article to said electrical equipment so as to form an external, insulating layer on said equipment; and (e) exposing said equipment with said insulating layer to electrical and atmospheric conditions conducive to surface tracking.