关于事故停电时间,下列说法正确的是()。A.无人值班变电所3h;B.有人值班变电所1h;C.与电力系统相连的发电厂1h;D.交流不停电电源装里...

作者: rantiku 人气: - 评论: 0
问题 关于事故停电时间,下列说法正确的是()。
选项 A.无人值班变电所3h; B.有人值班变电所1h; C.与电力系统相连的发电厂1h; D.交流不停电电源装里0.5h。
答案 BCD
解析

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