No. Nominal Unit Item GW
16
17
- 220


1 Rated Voltage kV -- 220
2 Rated Frequency Hz -- 50
3 Rated Current A -- 2000 2500 3150
4 Limit Through Current of Main Blade and Earthing Blade kA -- 125
5 Thermal Stable Current 3s of Main Blade and Earthing Blade kA -- 50
6 Power Frequency Withstand Voltage kV Between Poles 517
Across Gaps 677
7 Fullwave Impulse Withstand Voltage kV Between Poles 1155
Across Gaps 1320
8 Mechanial Endurance Time -- 2000
9 Creepage Ratio cm/kV I (Creepage Distance 4040 ) 1.6
II (Creepage Distance 5040 ) 2.0
III (Creepage Distance 6040 ) 2.5
10 Torsional Strength for Every Column Nm - 2000
11 Cantilever Strength for Upper Column N - 10000
12 Cantilever Strength Lower Colum N - 20000
13 Service Conditions m Altitude 2500
°C Ambient Temperature -40~+40
Pa Wind Pressure 700
。 Earthquake Degree 8
mm Ice Coating 10