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Switch and arc extinguishing material for use therein

  • US 5,841,088 A
  • Filed: 03/07/1995
  • Issued: 11/24/1998
  • Est. Priority Date: 03/10/1994
  • Status: Expired due to Fees
First Claim
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1. An arc extinguishing material comprising an arc extinguishing insulator composition comprising:

  • at least one filler selected from the group consisting of a glass fiber containing not more than 1% by weight of compounds of group 1A metals of the periodic table in total, an inorganic mineral containing not more than 1% by weight of compounds of group 1A metals of the periodic table in total, and a ceramic fiber containing not more than 1% by weight of compounds of group 1A metals of the periodic table in total; and

    a matrix resin containing as a principal component at least one member selected from the group consisting of a polyolefin, an olefin copolymer, a polyamide, a polyamide polymer blend, a polyacetal and a polyacetal polymer blend.

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