问题:单端牵引敷设竖井中电缆时,电缆要承受纵向压力、侧向拉力、扭转力(...
Monday, September 12, 2022
问题:电缆线路附属的杆塔、隧道、桥梁和房屋应每年检查()次。...
Saturday, September 17, 2022
问题:电缆的护层材料主要有();()和组合护层三大类。...
Friday, January 27, 2023
问题:35kV及以上发供电设备发生下列恶性电气误操作:带负荷误拉(合)...
Tuesday, September 13, 2022
问题:关于电力系统中一、二次系统的组成,叙述正确的是()。...
Monday, September 12, 2022
Monday, September 12, 2022
Monday, September 12, 2022
Monday, September 12, 2022
Saturday, September 17, 2022
问题:电缆应装设标志牌的地方有()A、电缆终端头B、电缆沟内C、电缆中间接头处D、隧道及竖井的两端...
Tuesday, October 10, 2023
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:()是电缆终端和接头中为改善金属护套末端电场分布、降低金属护套边...
Monday, September 12, 2022
问题:电力系统的停电时间包括()。A、事故停电B、临时性停电时间C、计划检修停电D、限电...
Friday, March 17, 2023
问题:利用滚动法搬运设备时放置滚杠数量有一定的要求,如滚杠较少,所需牵...
Saturday, September 17, 2022
问题:在绞线的一个节距中,单线展开长度与节距长度的比值叫()。...
Monday, September 12, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:调酸时,先把1.84比重的浓硫酸倒入调酸槽,然后缓慢地把蒸馏水倒...
Monday, September 12, 2022