| Insulator type | AC normal type | ||||
| GB standard No. | XP-160 | XP1-160 | XP5-160 | XP3-160 | |
| Fig | 1 | 1 | 2 | 2 | |
| Specified mechanical load (kN) | 160 | ||||
| Class | U160BM | U160BS | U160BS | U160BM | |
| Nominal unit spacing (mm) | 155 | 146 | 146 | 155 | |
| Nominal diameter (mm) | 255 | 255 | 280 | 280 | |
| Nominal creepage distance (mm) | 305 | 305/320 | 350/405 | 350/380 | |
| Ball & socket size | 20 | 20 | 20 | 20 | |
| Electro mechanical failing load (kN) | 160 | 160 | 160 | 160 | |
| Mechanical routine test load (kN) | 80 | 80 | 80 | 80 | |
| Power frequency withstand voltage | Dry kV | 70 | 70 | 70 | 70 |
| Wet (kV) | 40 | 40 | 42/45 | 42/45 | |
| Lightning impulse withstand voltage (kV) | 100 | 100 | 105 | 105 | |
| Power frequency puncture voltage (kV) | 110 | 110 | 110 | 110 | |
| Radio interference voltage | Test voltage to ground (kV) | 10 | 10 | 10 | 1 |
| Max . RIV at 1MHz (μV) | 50 | 50 | 50 | 50 | |
| Weight (kg) | 6.9 | 6.8/7.9 | 7.4/8.5 | 7.5/8.4 | |
| Applicable standard: GB IEC AS BS IS | |||||
