... both ends of fuse tube, Fuse tube is composed by inner arc tube and outer phenolic paper tube or epoxy glass cloth tube. Pull load ... , co-load current.When drop-out fuse in the normal operation, the fuse tube with fuse tension to form the closed position. ... moving contact lose tension and turned out, locking mechanism, release fuse tube, fuse tube drop, formed breaking Position. When pull the load, use ...