| Insulator type | AC anti-pollution type | ||||
| GB standard No. | XHP-190 | XHP-210 | XHP1-210 | XHP-225 | |
| Fig | 2 | 1 | 2 | 2 | |
| Specified mechanical load (kN) | 190 | 210 | 225 | ||
| Class | U190BSP | U210BS | U210BSP | U225BSP | |
| Nominal unit spacing (mm) | 170 | 170 | 170 | 170 | |
| Nominal diameter (mm) | 340 | 300 | 330 | 320 | |
| Nominal creepage distance (mm) | 556 | 450/470 | 550 | 550 | |
| Ball & socket size | 20/24 | 20/24 | 20 | 20 | |
| Electro mechanical failing load (kN) | 190 | 21 | 210 | 225 | |
| Mechanical routine test load (kN) | 95 | 105 | 105 | 112.5 | |
| Power frequency withstand voltage | Dry kV | 90 | 80 | 90 | 90 |
| Wet (kV) | 55 | 45 | 55 | 55 | |
| Lightning impulse withstand voltage (kV) | 135 | 130 | 135 | 135 | |
| Power frequency puncture voltage (kV) | 130 | 130 | 130 | 103 | |
| Radio interference voltage | Test voltage to ground (kV) | 10 | 10 | 10 | 10 |
| Max . RIV at 1MHz (μV) | 50 | 50 | 50 | 50 | |
| Weight (kg) | 15 | 12.5 | 14.6 | 14.5 | |
| Applicable standard: GB IEC AS BS IS | |||||
