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Outdoor high voltage fuse is suitable for 35Kv and 50Hz frequency power system. It is used for transmission line, overload and short circuit protection of power transformer, and it is used for rated load current.

2.1 is applicable to the ambient temperature of 40 C, the lower limit of -30 C.
2.2 altitude is not more than 1000m, and the wind speed is not more than 35m/s.
2.3. fuses are not applicable to the following places
2.3.1 has a place to burn or explode.
2.3.2A place where  has severe shock or shock.
2.3.3 have different electrochemical gases and serious air stains, smoke areas.

The fuse is composed of a base and is composed of two arc device, spring bracket arc tube demure and could turn, keeps the fuse in a state of tension, to ensure that the arc tube locking in the closing position, line and transformer overload or short circuit, fuse, fuse quickly from the arc tube drawn out the arc tube design for sequential exhaust type to solve the contradiction in the same fuse breaking size of the current.