Minimum mechanical failing load, kN | 210 |
Minimum mechanical residual strength, kN3 | 168 |
Diameter of the insulating part, (D), mm | 290 |
Nominal creepage distance, mm | 380 |
Ball and socket coupling (d), mm4 | 20 |
Puncture voltage in insulating medium, kV5 | 130 |
Dry lightning impulse withstand voltage, kV5 (a. One unit, +/- , kV) | 125/125 |
Dry lightning impulse withstand voltage, kV5 (b. Short standard string (5 units), kV) | 545/545 |
Wet power-frequency withstand voltage, kV 5 (a. One unit, kV) | 45 |
Wet power-frequency withstand voltage, kV 5 (b. Short standard string (5 units), kV) | 185 |
Radio interference voltage, dB/kV | 60/20 86/40 |
Zinc coating mass, not less than, g/m2 | 600 |