No.	Technical parameters	Technical Requirement Value
1	Nominal system voltage kv (effective value)	66			110				220		500
2	Rated voltage of arrester Ur kV (effective value)	84	90	96	100	102	108	200	204	216	420	444	468
3	Arrester continuous operating voltage Uc kv (effective value)	67.2	72.5	75	78	79.6	84	156	159	169	318	324	330
	DC 1mA reference voltage UImA kV	121	130	140	145	148	157	290	296	314	565	597	630
5	Leakage current at 0.75 times Us-μA	20		20					30	40
6	Power frequency reference voltage 2 kV (peak/√2)	84	90	96	100	102	108	200	204	216	420	444 468
6	Power frequency reference current (resistive) mA	1			1							5
7	Nominal discharge current kA (peak)	10			10				10			20
8	Steep wave impulse current kv (peak value) at 10kA	254	270	288	291	297	315	582	594	630	1170 *	1238 *	1306 *
	Residual voltage (s) Lightning surge current below 10kA kV (peak value)	221	235	250	260	266	281	520	532	562	1046 *	1106 *	1166 *
	Operating impulse current below 0.5kA kV (peak value)	188	201	213	221	226	239	442	452	478	858	907	956
9	Resistive current-1A	250		250				250			600
9	Continuous current Full current: - μA	800		900				900			2000
10	Large current impact withstand 4/10 2 times kA (peak)	100		100				100			100
11	Local discharge under 1.1 times Uc ≤ pC	5		5				5			5
12	Insulation lightning impulse withstand voltage ≥ kV (peak)	350		550				1050			1675
	Operating impulse withstand voltage≥ kv (peak)	-		-				-			1300
	Power frequency dry (wet) withstand voltage ≥ kV (effective value)	160		230				460			740

Serial Number	Technical parameters		Technical Requirement Value
1	Nominal system voltage kv (effective value)		10		35		110 neutral point		220 neutral point	330
2	Rated voltage of arrester Ur: kV (effective value)		17	17	51	54	60	72	144	300	312
	Surge arrester continuous operating voltage Uc. kv (effective value)		13.6	13.6	40.8	43.2	48	58	116	228	237
4	DC 1mA reference voltage U 1mA kV		24	25	73	77	85	103	205	425	442
	Leakage current s μA at 0.75 times Us		20							30
6	Power frequency reference voltage 2 kV (peak/✓ 2)		17	17	51	54	60	72	144	300	312
	Power frequency reference current (resistive) mA		1							2
7	Nominal discharge current kA (peak)		5		5		1.5		1.5	10
	Residual pressure ≤	Steep wave impulse current kv (peak value) at 10kA	51.8	57.5	154		-	-	-	814	847
		Lightning impulse current under 10kA kV (peak)	45	50	134		144	186	320	727	760
		Operating impulse current kv at 0.5kA (peak value)	38.3	42.5	114		135	174	299	618	643
9	Continuous current	resistive current s 1A	100		250				250	300
		Full current: s μA	500		800				900	1000
10	Large current impact withstand 4/10 2 times kA (peak)		65		65				100	100
11	Local discharge under 1.1 times Uc ≤ pC		5		5				5	5
12	Tolerance	Lightning impulse withstand voltage 2kV (peak)	95		200		325		550	1306
	Insulation voltage	Operating impulse withstand voltage akv (peak)	-		-		-		-	1056
		1min power frequency dry (wet) withstand voltage ≥ kv (effective value)	42		95		140		230	567