单选题:在不考虑腐蚀的情况下,按热稳定计算电气设备的接地线选择下列哪种规格是较合适的?(短路等效持续时间为1.2s)( ) 题目分类:发输变电专业知识 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: 在不考虑腐蚀的情况下,按热稳定计算电气设备的接地线选择下列哪种规格是较合适的?(短路等效持续时间为1.2s)( ) A.40 x4 mm2 B.40 x6 mm2 C.50 x4 mm2 D.50 ×6 mm2 参考答案: 答案解析:
What is the author's attitude toward all the laws against d What is the author's attitude toward all the laws against drunken driving?A.Opt 分类:发输变电专业知识 题型:单选题 查看答案
I heard the alarm ringing all the morning, __________ someth I heard the alarm ringing all the morning, __________ something very urgent hap 分类:发输变电专业知识 题型:单选题 查看答案