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PRODUCTS IEC standard Standard profile HV glass suspension insulator 300 kN HV glass suspension insulator U300B
PRODUCTS IEC standard Standard profile HV glass suspension insulator 300 kN HV glass suspension insulator U300BHV glass suspension insulator U300B
| Class IEC1 | U300B |
| Class GOST2 | ПС 300В 112V |
| Minimum mechanical failing load, kN | 300 |
| Minimum mechanical residual strength, kN3 | 240 |
| Diameter of the insulating part, (D), mm | 320 |
| Spacing, (H), mm | 195 |
| Nominal creepage distance, mm | 390 |
| Ball and socket coupling (d), mm4 | 24 |
| Puncture voltage in insulating medium, kV5 | 130 |
| Dry lightning impulse withstand voltage, kV5 (a. One unit, +/- , kV) | 130/130 |
| Dry lightning impulse withstand voltage, kV5 (b. Short standard string (5 units), kV) | 530/530 |
| Wet power-frequency withstand voltage, kV 5 (a. One unit, kV) | 50 |
| Wet power-frequency withstand voltage, kV 5 (b. Short standard string (5 units), kV) | 220 |
| Radio interference voltage, dB/kV | 60/20 86/40 |
| Zinc coating mass, not less than, g/m2 | 600 |
| Weight, kg | 10 |
