少油断路器中,油只作为灭弧介质和触头开断后的极间__,而带电部分与地之间的绝缘采用电瓷或其他介质
查看答案
在NETACT上提取预定义报表的功能模块是什么()
A. CM edit
B. report suite
C. reportor
D. operation manager
在中性点不接地的电网中,发生单相接地故障时,故障线路上的零序电流有什么特点
基站EIRP的计算公式为()
A. BTS max. transmit power -BTS combiner and jumper loss -BTS feeder and connector loss + BTS antenna gain
BTS max. transmit power -BTS combiner and jumper loss
C. BTS max. transmit power -BTS combiner and jumper loss -BTS feeder and connector loss
D. 以上都不对