C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
117/162, 261/17,
C03C 1/00 (2006.01) H01C 10/04 (2006.01)
Patent
CA 1042653
Abstract Of The Disclosure A zinc oxide compound non-linear resistance surge ar- rester disc is provided with a glass anti-flashover collar having a relatively low fusing temperature and a relatively low coefficient of thermal expansion. The glass comprises the following constituents in proportion to one-another by weight: about 44.5% lead oxide, about 24.5% zinc oxide, about 20.5% boric oxide, about 4.5% silicon oxide, and about 6.0% cupric oxide.
202042
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