HIGH CURRENT LIMITED FUSE THAT APPLY SOLUBLE CONDUCTOR OF DUAL STRUCTURE

摘要

A high voltage current limited fuse which applies a soluble conductor of a dual structure is provided to increase breaking capability of a system accident by extending an error current breaking region widely. A high voltage current limited fuse includes a soluble conductor(3g) of a dual structure, a non-conductive supporting bar(5a), and an arc blocking film(5a'). The soluble conductor(3g) of the dual structure of which a soluble conductor of a different material is bonded to both sides of another soluble conductor is wound to the non-conductive supporting bar(5a). The arc blocking film(5a') which is capable of blocking an arc is formed on the non-conductive supporting bar(5a). The soluble conductor uses nickel or nichrome wire. Another soluble conductor uses silver material. Another soluble conductor has a circular line or rectangular belt shape. At least two shapes which are selected from a circular shape, a rectangular shape, and a diamond shape are notched at regular distances along a lengthwise direction of another soluble conductor.