Electric fuse

H - Electricity – 01 – H

Patent

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306/143

H01H 85/38 (2006.01)

Patent

CA 1148995

ABSTRACT An electric fuse according to this invention incorporates metal end caps and an elongate fuse element having regions of reduced cross-sectional area and extending in electrical series between the metal end caps, wherein the fuse incorporates within each end a respective gasket of an absorbent material impregnated with an arc-inhibiting substance. Materials which have been found to be particularly effective for the gaskets are asbestos and absorbent types of paper, including strawboard and cardboard, impregnated with an arc-inhibiting compound constituted, suitably, by sodium silicate.

362092

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