ANSI 56 Porcelain Pin Type Insulator
ANSI 56 Porcelain Pin Type Insulator image
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ANSI 56 porcelain pin type insulatorSpecifications
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ANSI CLASS | 56-1 | 56-2 | 56-3 | 56-4 | 56-5 | |
Fig. No. | 1 / 2 | 1 / 2 | 3 | 3 | 4 | |
Main Dimension(mm) | H | 146 | 165 | 191 | 241 | 318 |
h | 50.8 | 50.8 | 50.8 | 50.8 | 63.5 | |
D | 191 | 228 | 267 | 305 | 343 | |
d | 34.9 | 34.9 | 34.9 | 34.9 | 34.9 | |
R1 | 19 | 19 | 19 | 19 | 19 | |
R2 | 14 | 14 | 14 | 14 | 14 | |
Leakage Distance (in) | 13 | 17 | 21 | 27 | 34 | |
Dry Arcing Distance (in) | 7 | 8 | 9 | 11 | 14 | |
Low Frequency Voltage | Dry Flashover | 95 | 110 | 125 | 140 | 175 |
Wet Flashover | 60 | 70 | 80 | 95 | 125 | |
Puncture | 130 | 145 | 165 | 185 | 225 | |
Critical Impulse Flashover | Positive/kV | 150 | 175 | 200 | 225 | 270 |
Negative/kV | 190 | 225 | 265 | 310 | 340 | |
Radio Influence voltage | Test Voltage | 15 | 22 | 30 | 30 | 44 |
Plain | 8000 | 12000 | 16000 | 16000 | 25000 | |
Radio Freed | 100 | 100 | 200 | 200 | 200 | |
Cantilever Strength (lb) | 2500 | 3000 | 3000 | 3000 | 3000 |
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