High Quality Suspension Disc Type Toughened Glass Insulator For Overhead Transmission Line

duct Model

U40B/110

U70B/140

U100B/140

U120B/146

U160B/170

Main dimension,mm

D

178

255

255

255

280

H

110

140

146

146

170

Creepage distance(mm)

185

320

320

320

400

Socket Coupling(mm)

11

16

16

16

20

Mechanical failing load( mm)

40

70

100

120

160

Mechanical routne test(kN)

20

35

50

60

80

Wetpower frequency withstand voltage(kV)

25

40

40

40

45

Dry lightning lipulse withstand voltage(kV)

50

100

100

100

110

Impuise puncture volltage(P.U)

2.8

2.8

2.8

2.8

2.8

Power frequency puncture vollage (kV) 

90

130

130

130

130

Radio influence voltage(μV)

50

50

50

50

50

Corona visual test (kV)

18/22

18/22

18/22

18/22

18/22

Power frequency electric arc voltage

 0.12s/20kA

 0.12s/20kA

 0.12s/20kA

 0.12s/20kA

 0.12s/20kA