Current limiting fuse having aluminum sulfate arc-quenching fill

Details Current limiting fuse having aluminum sulfate arc-quenching fill Current limiting fuse having aluminum sulfate arc-quenching fill

1980-01-03

1982-01-26

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

200149A, 337276, 337280, H01H 8518

Patent

active

043130992

ABSTRACT:
A current limiting fuse construction including a fuse element extending between electrically conductive terminals carries a body of arc-quenching filler material within a hollow casing of electrical insulating material. The filler material includes a first portion of arc quenching aluminum sulfate mixed with calcium sulfate binder, and second portion of arc quenching silica sand arranged in stratified layers, with the aluminum sulfate layer being positioned closest to a weak spot of the fuse element, and the layer of silica sand being positioned closer to an end cap of the fuse casing.

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