電 氣 性 能 Dielectric Properties |
絕緣電阻 Insulation Resistance | 常態下 Under normal | MΩ | GB/T5130 | ≥1.0×106 |
浸水(24+1)h后 After Immersion for24+1h | ≥5.0×104 |
電氣強度 (于90℃+2℃變壓器油中1min) Dielectric strength in transformer oil at 90℃ for 1 min | kv/mm | ≥14.2 |
平行層向耐電壓 (于90℃+2℃變壓器油中1min) Proof voltage in transformer oil at 90℃ for 1 min | KV | ≥45 |
介質損耗因數(于浸水后,1MHz時) Dielectric loss factor after immersion at 1MHz | | ≤0.04 |
介質常數(于浸水后,1MHz時) Dielectric loss Constant after immersion at 1MHz | | ≤5.5 |
表面電阻率 Surface Resistivity | 常態Under normal | MΩ | GB/T1410 | ≥1.0×107 |
浸水(23+2℃/24h) After Immersion of 23+2℃ for 24th | ≥1.0×105 |
體積電阻率 Volume Resistivity | 常態 Under normal | MΩ.m | ≥1.0×105 |
浸水(23+2℃/24h) After Immersion of 23+2℃ for 24th | ≥1.0×103 |
相比電痕化指數 Comparative Trackling Index | | GB/T4207 | ≥200 |