Item

Item	Rated voltage KV	Continuous operating voltage	1/5 μs steep current residual voltage, KV		8/20μs lighting impulse residual voltage, KV		30/60μs witching impulse residual voltage KV		2ms rectangular current, A		4/10 μs high current impulse KA		Insulation housing withstand voltage, KV		Creepage distance, mm
Item	r.m.s	KV r.m.s	5KA	10KA	5KA	10KA	5KA	10KA	5KA	10KA	5KA	10KA	Lightning impulse	Power frequency	Creepage distance, mm
1	3	2.55	10	10.6	8.9	9.4	6.8	7.1	100	250	65	100	40	18	105
2	6	5.1	20	21	18	19	13.6	14	100	250	65	100	60	25	227
3	9	7.65	30	31.7	26.8	28.2	20.4	21.2	100	250	65	100	60	25	227
4	10	8.4	33	34.8	29.5	31	22.4	23.3	100	250	65	100	75	30	232
5	11	9.3	36.4	38.4	32.5	34.2	24.7	25.7	100	250	65	100	75	30	386
6	12	10.2	40	42.2	35.7	37.6	27.1	28.2	100	250	65	100	95	40	386
7	15	12.7	50.1	52.8	44.7	47	34	35.3	100	250	65	100	105	45	386
8	18	15.3	60	63.3	53.6	56.4	40.7	42.3	100	250	65	100	125	55	493
9	21	17	66.6	70.3	59.5	62.6	45.5	47	100	250	65	100	125	55	493
10	24	19.5	76.6	80.9	68.4	72	52	54	200	400	65	100	125	55	600
11	27	22	86.4	91.2	77.1	81.2	58.6	60.9	200	400	65	100	125	55	1065
12	30	24.4	95.8	101.1	85.5	90	65	67	200	400	65	100	170	70	1065
13	33	27.5	107.9	113.9	96.3	101.4	73.2	76.1	200	400	65	100	170	70	1220
14	36	29	115	119	105	110	78	84	250	400	65	100	185	85	1340