Sulfur hexafluoride gas with excellent insulation performance and arc extinguishing performance,is widely used in electrical equipment,but if SF6 switch leakage,the consequences are very serious.Therefore,it is necessary to test the parts of the equipment that are prone to leakage.

　　The three-way valve of hydraulic mechanism,oil discharge valve,high and low pressure tubing,pressure gauge,and the damaged seal of the piston rod of the pressure storage cylinder,and the trachhole of the low pressure tank are all easy to leak sulfur hexafluoride gas.

　　SF6 circuit breaker body pillar drive rod,sealing ring scratch,the sealing of the valve is poor,pillar porcelain sleeve root crack,flange connection and so on are also easy to cause sulfur hexafluoride gas leakage parts.

　　In GIS,high-purity sulfur hexafluoride is usually prone to leakage in compartents,insulators,O-rings,switch insulation rods,box plate joints,gas chamber master pipes,accessories and other places.For more information,call 139-4929-0069.