SF6 load switch cable branch box  SF6 load switch high voltage cable branch box, cable joints for AC 12kV cable system, used to distribute electric energy. The way of connection is simple and convenient, with full insulation, sealing, corrosion, maintenance free, safe and reliable, small volume, light weight, beautiful appearance, no oil, the characteristics of simple installation, ground flexible, no live parts exposed, with advanced technology to solve the cable "T" connection, ring network power supply multi outlet problem. Products can be divided into the form of switch branch box, European branch box and American branch box. Connect the cable inlet and outlet are all insulated cable joint; convenient installation, reliable use. Outside the box surface using electrostatic spray processing, beautiful, generous, according to different environment choose different color processing. The box has the corresponding cable clamp and a ground terminal.  Application  The product applies to the city streets, residential areas, high-rise buildings, underground facilities, road, tunnel, industrial and mining enterprises, ports, airports, ports, oil fields, development zone, overpass, site, large and medium-sized enterprises in the distribution network with other occasions, especially suitable for city power grids, which can greatly save the equipment and cables. Investment, improve the reliability of power supply.  Three, the normal conditions of use  1, altitude: not more than 1000m;  2, the environment temperature: -25 ℃ ~+40 ℃.  3, relative humidity: daily average value not more than 95%, on average less than 90%;  4, the seismic capacity: 8 degrees  5, no fire, explosion, pollution, chemical corrosion and severe vibration.Rated current630KAThermal current20KARated short-time withstand current50KARated transfer current2000ALightning impulse withstand voltage85KVPower frequency withstand voltage48KVMechanical life2000次SF6 gas rated pressure0.03MPaSF6gas leakage rate per year≤0.5%