CURRENT LIMITING FUSE WITH AUXILIARY ELEMENT

摘要

19 48,282 A current limiting fuse is disclosed in which a main fuse element is wound at a given pitch around a fuse spider or mandrel. An auxiliary fuse element for assisting in low current high voltage current limiting operation is wound at generally the same pitch but in a disposition of non-electrical contact on the same fuse spider or mandrel. At the ends of the auxiliary elements, sheaths of flexible glass material of known thickness and dielectric characteristics are disposed for in turn being wound around a predetermined notch in the fuse element for greatly enhancing the flashover or arc transfer characteristic between the main fuse element and the auxiliary fuse element during a fusing operation.