Product details
33kv High voltage U70 disc toughed glass insulator has become popular in transmission and distribution system. Annealed tough glass is used for insulating purpose. Glass insulator has numbers of advantages over conventional porcelain insulator
33kv High voltage U70 disc toughed glass insulator specification:
|
IEC designation |
U70B/140 |
|
Diameter D( mm ) |
255 |
|
Socket coupling( mm ) |
140 |
|
Creepage distance L( mm ) |
320 |
|
Socket coupling( mm ) |
16 |
|
Mechanical failing load( mm ) |
70 |
|
Mechanical routine test( kN ) |
35 |
|
Wet power frequency withstand voltage( kV ) |
40 |
|
Dry lightning impulse withstand voltage( kV ) |
100 |
|
Impulse puncture voltage( P.U ) |
2.8 |
|
Power frequency puncture voltage( kV ) |
130 |
|
Radio influence voltage( µV ) |
50 |
|
Corona visual test( kV ) |
18/22 |
|
Power frequency electric arc voltage |
0.12s/20ka |
|
Net weight per unit( kg ) |
3.6 |
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