U400
| Type of insulator acc. IEC305 | Ultimate Mechanical Strength of insulators, KN, not less | Diameter of glass shed (D), mm | Spacing, mm | Creepage distance, mm | Weight, kg | Voltage withstand, kV, not less | ||
| impulse | frequency 50 Hz, wet | radio interference level | ||||||
| U400BS
U400BL |
400 | 390 | 205
220 |
475 | 15,0 | 130 | 55 | 40 |
| U400 |  |
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