水电厂用低压断路器保护的回路,短路电流不应小于断路器瞬时或短延时过电流脱扣器整定电流的()。A.1.2倍;B.1.3倍;C.1.4倍;D.1.5倍。

作者: rantiku 人气: - 评论: 0
问题 水电厂用低压断路器保护的回路,短路电流不应小于断路器瞬时或短延时过电流脱扣器整定电流的()。
选项 A.1.2倍; B.1.3倍; C.1.4倍; D.1.5倍。
答案 B
解析

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