绝缘子英语

参见强/弱电流强电场 highfield强电工程 heavy-current engineering强电弧 forceful arc; hard arc强电解质 strong electrolyte强电离 dense ionization强电离激光等离子体 high ionized laser plasma强电流 intense current; heavy current; power current; strong current强电流电缆 heavy-current cable强电流绝缘子 heavy-current insulator强电流馈送 heavy current feedthrough强电流线路 heavy current line强电流引入 heavy current lead-in强电视信号区 class A signal area弱电持续充电器 trickle charger弱电工程师 milliampere man弱电工程学 light current engineering; weak current engineering弱电解质 weak electrolyte弱电绝缘子 weak current insulator弱电控制系统 light-current system弱电离气体 weakly ionized gas弱电流 feeble current; weak current; light current弱电流电缆 weak-current cable弱电流开关 weak-current switch弱电流热丝 low-current heater弱电流数字电路 low-current digital circuit弱电流线路 weak-current line

一般常用EL表示强电，ELV弱电

正如楼上所说，强电是force electricity弱电是weak electricity但并不是强电就是直流电，弱电就是交流电。所谓强电就是我们平时所用的市电，220v而弱电是网络，电话，消防报警，有线电视这些