| Item No. | Property | Test condition and Requirement | Results |
| 1 | AC withstand for 1 min. (dry withstand, for indoor termination) | No breakdown and flashover shall occur at 45kV, 1min | No breakdown and flashover occurred on the combi. sample at 45kV, 1min |
| 2 | AC withstand for 1 min. (wet withstand, for outdoor termination) | No breakdown and flashover shall occur at 45kV, 1min | No breakdown and flashover occurred on the combi. sample at 45kV, 1min |
| 3 | Partial discharge | 13kV, ≤20PC | 13kV, ≤20PC |
| 4 | Load cycle | Heating for 5h, cooling for 3h. Conductor's temperature is 95℃, 3 cycles | Conductor's temperature is 95℃. Results refer to the following test |
| 5 | Impulse voltage withstand 1.2/50us±10times | 10 positiVe and 10 negative impulses at 105kV, flashover 1 time is allowed but not including total testing times | No breakdown of the combi. sample occurred at 105kV |
| 6 | DC voltage withstand negative 15 min. | No breakdown and flashover shall occur at 52kV | No breakdown and flashover occurred on the combi. sample at 52kV, 15min |
| 7 | AC voltage withstand, 4h | No breakdown and flashover shall occur at 35kV, 4h | No breakdown and flashover occurred on the combi. sample at 35kV, 4h |
| 8 | Oil-seal up test (Only for Paper insulated cables) | Heating for 24h, cooling for 24h. Conductor's temperature is 65℃, oil pressure: 100MPA | No leaking, no seeping |