| Insulator type |
D.C. Anti-pollution type (Tri-shed) |
| GB standard No. |
XZSP-160 |
XZSP-210 |
XZSP-300 |
| Specified mechanical load (kN) |
160 |
210 |
300 |
| Class |
U160BL |
U210BS |
U300B |
| Nominal unit spacing (mm) |
170 |
170 |
195 |
| Nominal diameter (mm) |
340 |
350 |
400 |
| Nominal creepage distance (mm) |
560 |
560 |
635 |
| Ball & socket size |
20 |
20 |
24 |
| Electro mechanical failing load (kN) |
160 |
210 |
300 |
| Mechanical routine test load (kN) |
80 |
105 |
150 |
| D.C. withstand voltage（±） |
Dry (kV) |
140 |
140 |
145 |
| Wet (kV) |
55 |
55 |
60 |
| Dry lightning impulse withstand voltage (kV) |
140 |
140 |
145 |
| Power frequency puncture voltage（±） |
Dry (kV) |
155 |
155 |
160 |
| Wet (kV) |
60 |
60 |
65 |
| puncture voltage inSF6(+) kV |
210 |
210 |
220 |
| Weigh (kg) |
11.6 |
12.4 |
19.5 |
| Applicable standard: GB IEC IS |
Service Tel: 86-799-7616888
