Detailed Product Description
Alternating-current system Disk-shaped suspending insulator
Standard suspension insulator
This is characteristics for only some types of glass insulator.
For other information, please visit our website or contact us.
|
Insulator Model
|
U70B/146
|
U210B/170
|
U240B/170
|
|
Diameter D (mm)
|
255
|
280
|
280
|
|
Structure H (mm)
|
146
|
170
|
170
|
|
Creepage distance L (mm)
|
320
|
400
|
400
|
|
Socket coupling (mm)
|
16
|
20
|
24
|
|
Mechanical failing load (kN)
|
70
|
210
|
240
|
|
Mechanical routine test (kN)
|
35
|
105
|
120
|
|
Dry power frequency withstand voltage (kV)
|
70
|
75
|
75
|
|
Wet power frequency withstand voltage (kV)
|
40
|
45
|
45
|
|
Dry lightning impulse withstand voltage (kV)
|
100
|
110
|
110
|
|
Impulse puncture voltage (p.u.)
|
2.8
|
2.8
|
2.8
|
|
Min power frequency puncture voltage (kV)
|
130
|
130
|
130
|
|
Radio influence voltage (μV)
|
≤50
|
≤50
|
≤50
|
|
Electric iron visual test (kV)
|
18/22
|
18/22
|
18/22
|
|
Power frequency electric arc voltage
|
0.12s/20kA
|
0.12s/20kA
|
0.12s/20kA
|
|
Net weight per unit (kg)
|
3.6
|
7.2
|
7.5
|
This is characteristics for only some types of glass insulator.
For other information, please visit our website or contact us.
|
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