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132KV Toughened Glass Insulator for Pollution-Resistant Power Lines
Porcelain and Glass Insulator

132KV Toughened Glass Insulator for Pollution-Resistant Power Lines

  • Model 70b

Glass disc insulators are used for insulating and fixing wires in high voltage overhead transmission and distribution lines. Different types of glass disc insulators are used on different voltage levels.

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Product description

Due to the high mechanical strength of the surface layer of the glass insulator, the surface is not prone to cracks. The electrical strength of glass generally remains unchanged throughout the operation period, and its aging process is much slower than that of porcelain, so glass insulators are mainly scrapped due to self-damage, which occurs within the first year of operation, but the defects of porcelain insulators are only after a few years of operation. began to be discovered years later.

technical parameters

Product Model

 

U40B/110

U70B/140

U100B/140

U120B146

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

1

Product features & Application

Tensile strength: 40KN,70KN,120KN..etc
Material: glass and cast iron
Process: casting + machining (if necessary) + surface treatment
Surface finish: hot dip galvanized
Application:Power-Transmission/ Insulator spare part/ High voltage
42 (1)42 (2)

Packaging & Shipping

with plywood case and pallet package
Sea freight:Ningbo port is best or up to you. 
Express:We have a cooperation with  several international express,so can offer a good price.Or can send to you by  your own express.

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