ZNRM6-40.5 SF6 fully insulated and sealed ring network switchgear is a new miniaturized modular switchgear, which can be configured with 3 modules in the same SF6 insulated gas box. The gas box adopts stainless steel shell, which is made of the world's best laser welding technology to ensure the hermeticity of the gas box; it is filled with SF6 gas and leakage is detected by simultaneous vacuum and nitrogen detection, and the active parts of the switch such as load switches, grounding switches, circuit breakers, fuse insulating cartridges and busbars are all sealed inside the stainless steel gas box, and the protection level of the inflatable shell reaches IP67, and the gas box is equipped with explosion-proof diaphragm, which can be used to prevent the explosion from the lower part of the gas box if the internal pressure of the switch exceeds a certain level. When the pressure inside the switch exceeds a certain level, it can be discharged from the explosion-proof port at the lower part, which can effectively prevent damage to people, cables and other switchgear in the substation.

ZNRM6-40.5 series inflatable cabinet has the advantages of compact structure, fully insulated, fully enclosed, long life, maintenance-free, small space occupation, safe and reliable, not affected by the working environment, etc. It is widely used in industrial and civil cable ring network and power supply terminal. It is especially suitable for small secondary distribution stations, opening and closing stations, industrial and mining enterprises, airports, railroads, commercial areas, high-rise buildings, high-speed railroads, subways, tunnels and other fields.