FUSE SUPPORTING MEANS HAVING NOTCHES CONTAINING A GAS EVOLVING MATERIAL

摘要

11DTO 4508A FUSE SUPPORTING MEANS HAVING NOTCHESCONTAINING A GAS EVOLVING MATERIALABSTRACT OF THE DISCLOSUREA high voltage fuse comprised of a fuse elementwrapped about a core, enclosed in a housing member, andsurrounded by a granular quartz material is disclosed.The core has a plurality of cutouts along its outersurfaces having preselected dimensions relative to thewidth of a fuse element of such values as to assure thatat least one cutout is interposed between adjacent turnsof the fuse element. The interposed cutouts increase thecreepage between the adjacent turns of the fuse element.The preselected dimensions of the cutouts relative tofuse-element width provide a single core that is capableof accommodating numerous types and different numbers offuse elements. The core is also provided with a gasevolving material attached to the cutouts and separatedfrom the fuse element by a predetermined amount to providecontrolled release of arc-quenching gas, when arcinginside the fuse occurs.