项目 | 单位 | MHYV | MHJYV | MHYBV,MHYAV,MHYA32 | |
7/0.28 | 7/0.28 | 1/0.8 | 1/1.0 | ||
+20℃导线直流电阻 | Ω/km | ≤45 | ≤73 | ≤36.7 | ≤25.8 |
固有衰减(800~1000HZ) | dB/km | ≤1.1 | ≤1.30 | ≤0.95 | ≤0.7 |
+20℃导线绝缘电阻 | MΩ.km | ≥3000 | |||
线对工作电容(800~1000HZ) | uF/km | ≤0.06 | |||
远端串音衰减(800~1000HZ) | dB/km | ≥70 | |||
电感(800~1000HZ) | mH/km | ≤800 | |||
耐交流工频电压 | - | 1.5KV/1min通过 | |||
电流电阻差 | - | ≤环阻的2% |