| 1. | Guide for the application of metal - oxide surge arresters for alternating - current systems 交流系统中金属氧化物电涌放电器应用指南 |
| 2. | Three - phase , manually operated subsurface and vault load - interrupting switches for alternating - current systems 交流系统用三相手工操作的地下负载隔离开关 |
| 3. | Three phase , manually operated subsurface load interrupting switches for alternating - current systems , requirements for 三相交流电系统亚层负载断开开关手工操作要求 |
| 4. | Line sectionalizers for alternating - current systems , requirements for overhead , pad - mounted , dry vault and submersible automatic 交流系统用架空底座安装型干拱顶和水中线路自动分段器的要求 |
| 5. | Standard for manually - operated dead - front padmounted switchgear with load interrupting switches and separable connectors for alternating - current systems 电流系统用的配有装载中断开关和可分连接器的手工操作正面不带电面板上安装的开关设备标准 |