HEC's transmission system operates at 275 kV, 132 kV and 66 kV and distribution is effected mainly at 11 kV and 380 volts.
港灯的输电系统分别以275千伏特、132千伏特和66千伏特功率输电，配电则主要采用11千伏特和380伏特功率。
HEC's transmission system operates at 275 kV, 132 kV and 66 kV and distribution is effected mainly at 11 kV and 380 volts.
港灯的输电系统分别以275千伏特、132千伏特和66千伏特功率输电，配电则主要采用11千伏特和380伏特功率。
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