Fuse tube and method of manufacture thereof

Details Fuse tube and method of manufacture thereof Fuse tube and method of manufacture thereof

H - Electricity

01

H

H01H 85/38 (2006.01) B32B 1/08 (2006.01) B32B 25/02 (2006.01) B32B 27/28 (2006.01) B32B 27/42 (2006.01) H01H 85/17 (2006.01)

Patent

CA 2267006

An arc-quenching composition is provided including a filler, a fiber and a binder. Preferably, the filler includes an arc-quenching compound such as melamine. The binder includes a thermosetting resin to facilitate forming of the arc-quenching composition into an arc-quenching fuse tube. In a preferred arrangement, an outer tube is formed over the arc- quenching fuse tube to provide an overall high-strength fuse tube. Also in a preferred arrangement, in order to provide a fuse tube that is capable of operation over an extremely wide current range, the inner arc-quenching tube includes a tapered bore. According to one fabrication technique, the outer tube is formed over the arc-quenching inner tube before the curing of the inner tube such that a single structure results.

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