| Insulator type | AC Anti-pollution type (double-shed) | |||
| GB standard No. | XWP5-160 | XWP6-160 | XWP7-160 | |
| Fig | 1 | 2 | 2 | |
| Specified mechanical load (kN) | 160 | |||
| Class | U160BMP | U160BLP | U160BLP | |
| Nominal unit spacing (mm) | 155 | 170 | 170 | |
| Nominal diameter (mm) | 300 | 330 | 340 | |
| Nominal creepage distance (mm) | 450 | 450 | 525 | |
| Ball & socket size | 20 | 20 | 20 | |
| Electro mechanical failing load (kN) | 160 | 160 | 160 | |
| Mechanical routine test load (kN) | 80 | 80 | 80 | |
| Power frequency withstand voltage | Dry kV | 80 | 80 | 90 |
| Wet (kV) | 45 | 45 | 50 | |
| Lightning impulse withstand voltage (kV) | 130 | 130 | 135 | |
| Power frequency puncture voltage (kV) | 120 | 120 | 130 | |
| Radio interference voltage | Test voltage to ground (kV) | 10 | 10 | 10 |
| Max. RIV at 1MHz μV | 50 | 50 | 50 | |
| Weight (kg) | 9.2 | 9.4 | 12.0 | |
| Applicable standard: GB IEC AS BS IS | ||||
