Melt of fuse and arrangement mode thereof

According to the fuse body of the fuse and the arrangement mode of the fuse body, variable cross sections composed of a plurality of holes are arranged side by side at intervals in the length direction, narrow paths for current to pass through are arranged between the holes, and in order to enable arcing angles of the variable cross sections to be staggered, edges are folded between the adjacent variable cross sections. One part of the variable cross section protrudes in the length direction of the melt; according to the arrangement mode, adjacent melts are reversely arranged according to the structures of the melts, and the protruding parts of the variable cross sections in the length direction of the melts are correspondingly arranged, so that the distances between the adjacent corresponding variable cross sections arranged in the length direction of the melts are different; wherein the distance between the variable cross sections of the protruding parts is smaller than the distance between the variable cro