在维护、维修 60V交流集中供电的有线电视网络时 ,F头常需重做 ,如停电维修则会中断信号传送 ,影响网络的正常运行。现介绍一种在带电的情况下制作F头的方法 :将 -9或 -12型同轴电缆线的外保护层和屏蔽网一同切除 ,保留 2～ 3mm内发泡绝缘体 ,切去后面的发泡体 ,然后把芯线切好 In the maintenance and repair of 60V AC centralized power cable television network, F often need to redo, such as power outage maintenance will interrupt the signal transmission, affecting the normal operation of the network. Now introduce a method of making F head under the condition of charging: cut off the outer protective layer of -9 or -12 type coaxial cable and the shielding net together, keep the foaming insulator within 2 ~ 3mm, cut off the back hair Bubble, then cut the core wire