High-voltage fuse and process of manufacturing the same

Details High-voltage fuse and process of manufacturing the same High-voltage fuse and process of manufacturing the same

1975-09-22

1977-02-15

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337158, 29623, 337295, H01H 8508, H01H 8512

Patent

active

040084515

ABSTRACT:
A high-voltage fuse having a casing closed at each end thereof by a pair of composite plug terminals. Each of these composite plug terminals is made up of a pair of semi-cylindrical complementary parts. The fuse includes a pair of helically wound fusible element means whose longitudinal axes are parallel to each other and spaced from each other. One of said pair of fusible element means and one pair of semi-cylindrical terminal parts are arranged to one side of a plane of symmetry extending in a direction longitudinally of the casing of the fuse. The other of said pair of fusible element means and another pair of semi-cylindrical terminal parts are arranged to the other side of the aforementioned plane of symmetry. Both helically wound fusible element means are initially wound around metal rods which are subsequently removed from the fusible element means and from the casing of the fuse when the fusible element means are sufficiently braced by the pulverulent arc-quenching filler inside the casing to allow withdrawal of the aforementioned metal rods.

REFERENCES:
patent: 3571775 (1971-03-01), Kozacka
patent: 3810061 (1974-05-01), Salzer

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