| Insulator type |
AC normal type |
| GB standard No. |
XP4-160 |
XP7-160 |
XP8-160 |
XP9-160 |
| Fig |
1 |
2 |
1 |
1 |
| Specified mechanical load (kN) |
160 |
| Class |
U160BN |
U160BL |
U160BS |
U160BM |
| Nominal unit spacing (mm) |
155 |
170 |
146 |
155 |
| Nominal diameter (mm) |
300 |
280 |
280 |
280 |
| Nominal creepage distance (mm) |
400 |
380/405 |
315 |
315 |
| 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) |
75 |
75 |
70 |
70 |
| Wet (kV) |
45 |
45 |
40 |
40 |
| Lightning impulse withstand voltage (kV) |
110 |
110 |
105 |
105 |
| Power frequency puncture voltage (kV) |
110 |
110 |
110 |
110 |
| Radio interference voltage |
Test voltage to ground (kV) |
10 |
10 |
10 |
10 |
| Max . RIV at 1MHz (μV) |
50 |
50 |
50 |
50 |
| Weight (kg) |
8.2 |
8.8 |
7.5 |
7.9 |
| Applicable standard: GB IEC AS BS IS |
Service Tel: 86-799-7616888
