Main Dimensions and Mechanical & Electrical Characteristics
Type | U120B/146 | U120BP/146 | U120BP/146D | U120BP/155T | U120BP/146M |
Fig.No. | 1 | 2 | 4 | 5 | 3 |
Nominal Diameter of Insulator D mm | 255 | 255/280 | 280 | 300 | 350 |
Nominal Unit Spacing H mm | 146 | 146 | 146 | 155 | 146 |
Nominal Creepage Distance mm | 320 | 430/450 | 450 | 545 | 300 |
Coupling Size mm | 16B/A | 16B/A | 16B/A | 16B/A | 16B/A |
Rated Electromechanical Failure Load kN | 120 | 120 | 120 | 120 | 120 |
Routine Tensile Load kN | 60 | 60 | 60 | 60 | 60 |
Wet Power Frequency Withstand Voltage kV | 40 | 40 | 45 | 45 | 40 |
Lightning Impulse Withstand Voltage kV | 100 | 100 | 120 | 130 | 105 |
Power Frequency Puncture Voltage kV | 110 | 110 | 110 | 110 | 110 |
Radio Interference Test Voltage£¨7.5kV ,1MHz£© ¦ÌV | 50 | 50 | 50 | 50 | 50 |
Corona Extinguished Voltage kV | Pin18£¬Cap22 | Pin18£¬Cap22 | Pin18£¬Cap22 | Pin18£¬Cap22 | Pin18£¬Cap22 |
Power Frequency Arc Test | 0.12s£¬20kA | 0.12s£¬20kA | 0.12s£¬20kA | 0.12s£¬20kA | 0.12s£¬20kA |
Reference Weight Per Unit kg | 5.1 | 7.6/8.2 | 7.9 | 9.4 | 9.4 |
