| Insulator type |
Ground wire insulator for earthline |
| GB standard No. |
XDP-70CN |
XDP-70C |
XDP-100CN |
XDP-100C |
| Fig |
1 |
2 |
1 |
2 |
| Specified mechanical load |
70 |
100 |
| Nominal unit spacing (mm) |
200 |
200 |
210 |
210 |
| Nominal diameter (mm) |
160/170 |
160/170 |
170 |
170 |
| Nominal creepage distance (mm) |
160/170 |
160/170 |
170 |
170 |
| Wet power frequency withstand voltage (kV) |
30 |
30 |
30 |
30 |
| Reted E&M failing load (kV) |
110 |
110 |
110 |
110 |
| Power-freq.(dry or wet) flashover voltage |
Upper limited value (kV) |
30 |
30 |
30 |
30 |
| Lower limited value (kV) |
8 |
8 |
8 |
8 |
| Power arc extinguish current at 15mm gap 2500V (min.) |
Inductio Current (A) |
35 |
35 |
35 |
35 |
| Capacity current (A) |
20 |
20 |
20 |
20 |
| Pole are resistibility (min.) |
Power-freq.current (kA) |
10 |
10 |
10 |
10 |
| Arcing duration (kA) |
0.2 |
0.2 |
0.2 |
0.2 |
| Arcing time |
2 |
2 |
2 |
2 |
| Weigh (kg) |
4.2/4.6 |
4.2/4.6 |
5.8 |
5.8 |
| Applicable standard: JB/T 9680 |
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