SF6 Load Switch Breaker

Item	Unit	Data
Rated voltage	kV	12
Main circuit lightning impulse withstand voltage (Same , relative/be twee n fracture surfaces)( peak value)	kV	125	145
Main circuit 1-minute powe r freque ncy withstand voltage (Same , relative/be twee n fracture surfaces)( peak value)	kV	65	79
1-minute power frequency withstand voltaae of auxiliarv circuit	kV
Rated current	A	630
Transfer current	A	870
Rated short-circuit closing current (peak)	kA	50
Rated short-time withstand current	kA	20
Rated short-circuit duration	S	3
Rated peak withstand current (peak)	kA	50
Grounding switch closing current (peak)	kA	20
Peak withstand current of grounding switch (peak)	kA	50
Mechanical lifespan of load switch	次	3000
Mechanical lifespan of grounding switch	次	2000
Rated Pressure of arc extinguishing chamber (20℃)		1.45

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