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High voltage pin type insulator

High voltage pin type insulator is normally used for high voltage transmission and distribution lines and made by wet process porcelain with big creepage distance.

High voltage pin type insulator

High voltage pin type insulator

High voltage pin type insulator main technical parameters:

DIN. No. St10 St15 St20 St30

Main dimension, mm

 d1 135 150 175 230
d2 62 72 82 92
d3 80 90 100 110
d4 110 120 145 185
d5 31 28 30 38
H 138 158 185 250
h 55 60 65 90
R1 10 10 10 10
R2 12.5 12.5 12.5 12.5
Nominal voltage, kV 10 15 20 30
Creepage distance, mm 240 270 340 430
Power frequency puncture voltage, kV 110 120 140 165
Cantilever failing load, kN 12.5 12.5 14.7 14.7
Minimum flashover voltage Power frequency Dry, kV 70 75 90 130
Wet, kV 75 75 90 130
50% impluse Positive, kV 100 110 130 200
Weight, kg 1.5 2.3 3.4 6.5

 

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Orient Power is a pin insulator manufacturer of porcelain pin type insulator and composite pin insulators.