GB 50052-2009 第3.0.2条
| When the installed capacity of electrical equipment exceeds 250 kW or the power supply distance exceeds 250 m, a supply voltage of 10 kV or above should be used.
| When the installed capacity of electrical equipment exceeds 250 kW or the power supply distance exceeds 250 m, a supply voltage of 10 kV or above should be used.
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