And 1000kv substation equipments have been satisfactorily energized for ten years at the field test site, so TEPCO has learned a great deal about UHV technologies through first-hand experience.

而且，1000kV变电站设备已经在现场试验站成功运行了10年，使得东京电力公司拥有大量关于特高压输电技术的第一手经验。