Fig.No.

1

2

3

Nominal Diameter of Insulator  D    mm

330

360

360

Nominal Unit Spacing  H    mm

170

170

170

Nominal Creepage Distance   mm

550

525

545

Coupling Size   mm

24

24

24

Rated Electromechanical Failure Load   kN

240

240

240

Routine Tensile Load    kN

120

120

120

Wet Power Frequency Withstand Voltage   kV

55

50

50

Lightning Impulse Withstand Voltage   kV

135

135

130

Impulse Puncture Voltage  (Per Unit Value)

2.8, 2.85*

2.8, 2.85*

2.8, 2.85*

Radio Interference Test Voltage（7.5kV ,1MHz） μV

50

50

50

Corona Extinguished Voltage  kV

Pin18，Cap22

Pin18，Cap22

Pin18，Cap22

Power Frequency Arc Test

0.12s，20kA

0.12s，20kA

0.12s，20kA

Reference Weight Per Unit    kg

15.2

14

14.7