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【单选题】
根据《GB/T 12325-2008《电能质量供电电压偏差》》,下列哪项规定是正确的。( )
A.
35KV及以上供电电压正、负偏差绝对值之和不超过标称电压的10%
B.
20KV及以下三相供电电压偏差为标称电压的7%
C.
220V单相供电电压偏差为标称电压的±7%
D.
对供电点短路容量较小、供电距离较长以及对供电电压偏差有特殊要求的用户，不做限制。
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