Vacuum Load Breaker

N0.:	1	Test Item:	Rated voltage
Unit:	kV	Data:	12/24
N0.:	2	Test Item:	Rated current
Unit:	A	Data:	400/630
N0.:	3	Test Item:	Rated frequency
Unit:	Hz	Data:	50/60
N0.:	4	Test Item:	Rated short-time withstand current
Unit:	kA	Data:	20
N0.:	5	Test Item:	Rated short-circuit duration
Unit:	s	Data:	4
N0.:	6	Test Item:	Rated active load breaking current
N0.:	7	Test Item:	Rated loop breaking current
N0.:	8	Test Item:	Rated cable charging current
Data:	12	N0.:	9
Test Item:	5% rated active load breaking current	Data:	31.5
N0.:	10	Test Item:	Rated short-circuit making current
Data:	50	N0.:	11
Test Item:	Main loop resistance	Unit:	μΩ
Data:	≤100	N0.:	12
Test Item:	power frequency withstand voltage against the earth, between phases	Unit:	kV rms
Data:	40/65	N0.:	13
Test Item:	power frequency withstand voltage against the isolating distance	Data:	48/79
N0.:	14	Test Item:	Lightning impulse withstand voltage against the earth, between phases (peak)
Data:	75/125	N0.:	15
Test Item:	Lightning impulse withstand voltage against the air gap(peak)	Data:	85/145
N0.:	16	Test Item:	Mechanical life
Unit:	Times	Data:	10000
N0.:	17	Test Item:	Three phase closing asynchronous
Unit:	ms	Data:	≤5
N0.:	18	Test Item:	Main contact blade pressure
Unit:	N	Data:	520
N0.:	19	Test Item:	Distance between electric parts and phase to earth
Unit:	mm	Data:	≧300/≧600
N0.:	20	Test Item:	Rated operating force
Data:	≤300