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钻孔注意事项 ................................................................................................................ 4-20 电缆架和线槽 .............................................................................................................. 4-26 支撑类型 ........................................................................................................................ 4-33 安装线槽 ........................................................................................................................ 4-41 配线架 ........................................................................................................................ 4-45 导管 ........................................................................................................................ 4-47 设施接地 ................................................................................................................ 4-57 设施接地系统 ........................................................................................................ 4-58 屏蔽 ........................................................................................................................ 4-59 直流电源系统 ........................................................................................................ 4-60 交流电源 ........................................................................................................ 4-68 设备标记 ........................................................................................................ 4-100 通信变电站 ......................................................................................................
tc 6-02.20 电缆和电线系统手册
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