供电系统：高压供电及至低压配电柜供电的配电系统（包括低压配电柜）。
Power supply system: high-voltage power supply and distribution system to low-voltage distributors (including low-voltage distributors).
供电系统：高压供电及至低压配电柜供电的配电系统（包括低压配电柜）。
Power supply system: high-voltage power supply and distribution system to low-voltage distributors (including low-voltage distributors).
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