Improved technology for manufacturing of the high-voltage fuse-links

The new patented design solution and corresponding technology for manufacturing high-voltage fuse-links reduces to the minimum the number of parts in the area of the contact between the fuse-elements and the contacts of the fuse-link. The electric contact between these parts is realized on the outer size of the isolating tube, utilising magnetoforming method, that being the base modification in technology, conducting to a great productivity and high savings. As regards the striker construction, there are eliminated tinnering operations and the new solution is simple, cheap and environment-friendly. The tests made on the new fuse-links were conducted only for establishing of the temperature-rise and dissipated power and checking the time-current characteristics. The obtained values are in conformity with the imposed values by the international norms.