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| Item | Test end | Technical requirement | Test conditions |
| No-load current | 1~4 | ≤1.5mA | 220Vac/50Hz |
| No-load voltage | 1~2 | 14.0V±0.5V | |
| 5~7 | 14.0V±0.5V | ||
| On-load voltage | 1~2 | 11.0V±0.5V | 30mA |
| 5~7 | 11.0V±0.5V | 20mA | |
| Dielectric strength | N1, N2 strength to N3 | Apply AC4.0KV with no abnormality | 1mA、1min |