Cap porcelain line post insulators
1. Type: Line post insulator
2. Material: High pressure porcelain
3. Safe usage, Favorable price
4. Certification: ISO9001: 2000
5. Payment term: L/C; T/T
6. Wooden boxes, wooden pallets
ANSI Class | Fig NO. | Creepage distance (mm) | Dry arcing distance (mm) | Cantilever strength (KN) | Lower frequency flashover voltage | Critical impulse flashover voltage | Test voltage to ground (KV) | Max. RIV at 1000KHZ (UV) | Approx net weight (kg) | ||
Dry(KV) | Wet(KV) | Positive (KV) | Negative (KV) | ||||||||
57-11 | 1 | 356 | 165 | 12.5 | 80 | 60 | 130 | 155 | 15 | 100 | 6.8 |
57-12 | 2 | 559 | 241 | 12.5 | 110 | 85 | 180 | 205 | 22 | 100 | 10 |
57-13 | 3 | 737 | 311 | 12.5 | 125 | 100 | 210 | 260 | 30 | 200 | 11.8 |
57-14 | 4 | 1015 | 368 | 12.5 | 150 | 125 | 255 | 340 | 44 | 200 | 15.9 |
57-15 | 5 | 1145 | 438 | 12.5 | 175 | 150 | 290 | 380 | 44 | 200 | 18.6 |
57-21 | 6 | 356 | 165 | 12.5 | 80 | 70 | 130 | 155 | 15 | 100 | 7.5 |
57-22 | 7 | 559 | 241 | 12.5 | 110 | 100 | 180 | 205 | 22 | 100 | 10.5 |
57-23 | 8 | 737 | 311 | 12.5 | 125 | 115 | 210 | 260 | 30 | 200 | 12.7 |
57-24 | 9 | 1015 | 368 | 12.5 | 150 | 135 | 255 | 340 | 44 | 200 | 16.8 |
57-25 | 10 | 1145 | 438 | 12.5 | 175 | 160 | 290 | 380 | 44 | 200 | 19.5 |
