ANSI Line post insulators for high voltage
MAIN DIMENSIONS AND STANDARD PARTICULARS
ANSI CLASS 57-11 57-12 57-13 57-14 57-15
Creepage distance mm 356 559 737 1015 1145
Dry arcing distance mm 165 241 311 368 438
Cantilever strength kN 12.5 23.5 12.5 12.5 12.5
Low frequency flashover voltage Dry flashover kV 80 110 125 150 175
Wet flashover kV 60 85 100 125 150
Critical impulse flashover voltage Postive kV 130 180 210 255 290
Negative kV 155 205 260 340 380
Radio influence voltage data test voltage to ground kv 15 22 30 44 44
At 1000kHZ Max.RIV μ V 100 100 300 200 200
Net Weight,Each,Approx,kg 6.8 10 11.8 15.918.6 18
MAIN DIMENSIONS AND STANDARD PARTICULARS
Type ANSI 57-2L-1 PIN POST
Creepage distance mm 559 520
Protected Creepage distance (mm) 200 260
Dry arcing diatance (mm) 240 260
Cantilever strength kN 12.5 12.5
Low frequency flashover voltage Dry,kV 90 90
Wet,kV 65 65
Impulse Withstand Voltage,KV 150 150
Radio influence voltage data test voltage to ground kv 22 22
At 1000kHZ Max.RIV μ V 100 100
Net Weight,Each,Approx,kg 9.2 10

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