| 摘要 |
<p>Case 2567 A current limiting fuse has a helically coiled fuse element of ribbon-like material extending within a tubular casing between metallic end caps. The ribbon-like material is edge on to the axis of the helix permitting a greater length of fuse element than if the ribbon-like material had the flat side towards the axis. In a preferred form the ribbon-like material has ripples or indentations across it with the ripples having a greater displacement at the edge of the ribbon-like fuse element nearer the axis.</p> |
