High-voltage fuse cutout is made of three parts, the insulation bearing, static and dynamic contact, fuse tube. Static contact are installed at the both ends of insulation bearing, the fuse tube is made of the inner layer of the arc tube and the outer layer of phenolic paper tube or epoxy glass fiber tube.

Drop-type fuse is used for the power system of frequency of 50HZ, rated voltage up to 35KV, and it is installed in the high voltage side of transformer or on power distribution line. it can be used in conjunction with the isolation switch, instead of automatic air switch; can also be used in conjunction with the load switch to instead of expensive circuit breakers. At the same time it has function of short circuit protection, overload and isolation circuit protection

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