多选题:在下列哪几种情况下,用电单位宜设置自备电源?( ) 题目分类:供配电专业知识 题目类型:多选题 查看权限:VIP 题目内容: 在下列哪几种情况下,用电单位宜设置自备电源?( ) A.需要设备自备电源作为一级负荷中特别重要负荷的应急电源时 B.所在地区偏僻,远离电力系统,设备自备电源经济合理时 C.设备自备电源较从电力系统取得第二电源经济合理时 D.已有两路电源,为更可靠为一级负荷供电时 参考答案: 答案解析:
根据下面文章,回答题。Tony has always loved going to the beach.He spend 根据下面文章,回答题。Tony has always loved going to the beach.He spends as much time ther 分类:供配电专业知识 题型:多选题 查看答案
If the number of cars is cut down,the most serious problem t If the number of cars is cut down,the most serious problem to American workers 分类:供配电专业知识 题型:多选题 查看答案
根据下面文章,回答题。A2.26-meter-tall Yao Ming made his NBA debut ( 初次 根据下面文章,回答题。A2.26-meter-tall Yao Ming made his NBA debut ( 初次登台) on October 23, 分类:供配电专业知识 题型:多选题 查看答案