Suspension Porcelain Insulators Anti-Pollution

Class ANSI

52-6

52-10

52-10

Unit spacing (H) mm

146

165

175

Nominal diameter (D) mm

255

292

320

Nominal Creepage Distance (mm)

432

432

545

Combined M&E strength (kN)

111

160

160

Tension proof test load (kN)

55.5

80

80

Mechanical impact strength (n.m)

7

10

10

Low frequency flashover voltage

Wet (kv)

60

60

60

Dry (kv)

100

100

110

Critical-Impulse flashover voltage

Positive (kV)

150

150

160

Negative (kV)

160

160

170

Low frequency puncture voltage

120

130

130

Radio-Interference-

Voltage

Test Voltage to ground (kV)

10

10

10

Maximum RIV at 1MHz (µV)

50

50

50

Weight (kg)

6.8

9.1

12.6

Applicable standard: ANSI C29.2