Description
U120B Glass Insulator Technical Specifications
| Glass insulator types | IEC class | Minimum mechanical failing load (kN) | Nominal diameter D(mm) | Nominal spacing H(mm) | Nominal creepage distance(mm) | Standard coupling/PIN | One by one tensile load test | Wet power frequency withstand voltage (kV) | Dry lightning impulse withstand voltage (kV) | Net weight (kg) |
| Standard profile | U120B U120B/127 | 120 | 255 | 127 | 320 | 16 | 60 | 40 | 100 | 3.9 |
| U120B U120B/146 | 120 | 255 | 146 | 320 | 16 | 60 | 40 | 100 | 4.2 | |
| Anti-pollution profile | U120BP/146 | 120 | 255 | 146 | 400 | 16 | 60 | 45 | 110 | 5.3 |
| U120BLP U120BP/146 | 120 | 280 | 146 | 450 | 16 | 60 | 50 | 125 | 6.0 | |
| U120BP/146 | 120 | 320 | 146 | 550 | 16 | 60 | 55 | 140 | 8.3 | |
| Aerodynamic profile | U120BP/127M | 120 | 380 | 127 | 365 | 16 | 60 | 45 | 90 | 6.3 |
| U120BP/146M | 120 | 380 | 146 | 365 | 16 | 60 | 45 | 90 | 6.3 |
