| Testing Items U o/U |
6.35/11 kV |
12.7/22 kV |
19/33 kV |
| A/C withstand test |
29kV, 5min, no flashover |
58kV, 5min, no flashover |
86kV, 5min, no flashover |
| Partial discharge test |
11kV < 10pc (Max.) |
22kV < 10pc (Max.) |
33kV < 10pc (Max.) |
| Thermal Cycles (63 cycles) |
under95-100o C 16kV |
under95-100o C 32kV |
under95-100o C 48kV |
| Impulse voltage test |
75kV no flashover |
125kV no flashover |
170kV no flashover |
| A/C with stand test |
16kV, 15 min, no flashover |
32kV, 15 min, no flashover |
48kV, 15 min, no flashover |
| Humidity test (Indoor) |
No flashover, tracking erosion or mechanical damage occured at 300hrs, 8kV |
No flashover, tracking erosion or mechanical damage occured at 300hrs, 16kV |
No flashover, tracking erosion or mechanical damage occured at 300hrs, 24kV |
| Salt Frog test (Outdoor) |
No flashover, tracking erosion or mechanical damage occured at 1000hrs, 8kV no flashover, tracking |
No flashover, tracking erosion or mechanical damage occured at 1000hrs, 16kV no flashover, tracking |
No flashover, tracking erosion or mechanical damage occured at 1000hrs, 24kV no flashover, tracking |
