Risk Analysis Of Malfunction Of Drop-out Fuses

In some power distribution lines, there have been instances where the dimensions of fuse fuse drop out do not match those of the fixing device, causing the fuse tube to fall off spontaneously due to vibration or wind even when there is no fault. Furthermore, insufficient spring rigidity in the upper contact or wear on critical contact points can prevent fuse ht drop out fuse from falling as expected. This non-faulty action can cause confusion for maintenance personnel and unnecessary repair work.