这段怎么翻译？（不太好翻译）

高压电必须用小 k 大 V. 这是专业翻译：

The augmented capacity retrofit project of 6 Kilometer conductor cable outlet of Yinchuan Sub-Station for the 220 kV double circuit Yinhua transmission line has been successfully completed and has passed the acceptance check; the power transmission capacity of the conductor is nearly doubled after the completion of the project.

220 kV double circuit line Yinhua Yinchuan change round of about 6 km above the transformation Compatibilizer wire and through the successful completion of job acceptance, improved transmission capacity than the original wire near twice improve.

220KV银花线の二重回路银川変电送电部分约6千メートルケーブル拡充改造工事は无事完成し、検収も合格した。改造后の导线送电能力は以前より约2倍も近く高めた。