题目内容

沿不同冷却的路径敷设绝缘导线和电缆时,当冷却条件最坏段的长度超过3m,应按该段条件选择绝缘导线和电缆的截面,或只对该段采用大截面的绝缘导线和电缆。( )

A. 对
B. 错

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35kV与l0kV同杆塔共架的线路,不同电压等级导线间的垂直距离不应小于2m。( )

A. 对
B. 错

Questions 11 to 18 are based on the conversation you have just heard.

A. No, it’s open only to teachers and postgraduates.
B. Yes, he can study there if he is writing a research paper.
C. Yes, because he is a senior student.
D. Yes, but he needs the approval of his professor.

屋外敷设在空气中的裸导体,确定其载流量的环境温度,采用敷设地区最热月的平均最高温度。( )

A. 对
B. 错

钢索上采用瓷瓶吊装绝缘导线布线时,扁钢吊架终端应加拉线,其直径不应小于3mm。( )

A. 对
B. 错

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