Patent ID: 6211478
Filing Date: 2001-04-03
Classification: H01H

Abstract:
A switching arrangement, comprising:at least one arcing chamber;at least one first switching contact and a second switching contact, which are operably engageable and arranged in said arcing chamber so that they can move with respect to one another between a switched-on position, in which they are in contact with one another, and a switched-off position, in which they are isolated from one another;at least part of surfaces in the arcing chamber being formed by material which is resistant to contact erosion, wherein at least some of the material which is resistant to contact erosion is present in the form of a protective layer which has been applied to a base body plasma spraying; andwherein the protective layer contains at least one high-melting component with a melting point of at least 2000.degree. C. and at least one lower-melting component with a melting point below 2000.degree. C.