Type of Insulator | Nominal System Voltage (kV) | Min Creepage Distance (mm) | Sectional Length (mm) | Mechanical Load (kN) | Low Frequency Dry Flash over (kV) | Low Frequency Wet Flash over (kV) | Positive Critical Impulse Flash over (kV) |
---|---|---|---|---|---|---|---|
DS-15 | 15 | 420 | 331 | 70 | 90 | 65 | 140 |
DS-28 | 28 | 650 | 430 | 70 | 130 | 100 | 190 |
DS-28 | 28 | 800 | 469 | 70 | 150 | 135 | 255 |
DS-35 | 35 | 1000 | 548 | 70 | 170 | 155 | 280 |
DS-46 | 46 | 1375 | 634 | 70 | 188 | 166 | 325 |