Overview RW3-10 high drop-out fuse is the most common distribution lines and distribution transformer branch lines a short-circuit protection switch. It has an economic, easy to operate, adapt to the outdoor environment and other characteristics, are widely used in the primary distribution lines and distribution transformers as protection for device administration, with the cutting operation. RW3-10 high drop-out fuse installed in distribution lines branch line, can reduce the power range. Because there is a clear break point, comes with elastic auxiliary contact and interrupter cover for division and rated load current. Second, the use and implementation of standards RW3-10 high drop-out fuse used in the primary distribution lines 10-35KV branch lines and distribution transformers for overload and short circuit protection, division and rated load current. RW3-10 high drop-out fuse model by JB / T8321 "AC high voltage fuses type weaving method" requirement for the preparation, product parameters according GB15166.3 "AC high voltage fuses jet fuse" standards, the standards Important parameters are shown with a well-defined configuration, according to JB / DQ2139-1986 "10-35KV outdoor AC high voltage drop fuse Interim technical conditions" amendments to implement. Third, a use condition (1) ambient temperature does not exceed + 40 ℃, not lower than -40 ℃; (2) the altitude does not exceed 1000m; (3) the wind speed is not greater than 35m / s; (4) the seismic intensity does not more than eight. 2. The product is not available for the following areas: (1) there is a fire or explosion hazard; (2) there is severe vibration or shock place; (3) there is a conductive, chemical gas effects and serious contamination areas.