1.
An Investigation on Lightning Surge Protection of Low-Voltage AC Power Lines;
低压交流电源线路的雷电电涌防护研究
2.
The only access points for transients are the AC power line wires and any data and telecommunication wiring.
电涌唯一的接入点就是交流电源线和任何的数据及电信接线。
3.
Do not staple or otherwise attach the AC power supply cord to building surface
不要把交流电源线固定或附于建筑物的表面
4.
circuit design, wiring diagrams, schematics, AC/DC sources
电路设计, 接线图, 示意图, 交流/直流电源
5.
Disconnect the AC supply lead plug from the AC outlet when the unit in not it use for extended periods.
长时间不使用本机时，请将插在交流电输出口的交流电源导线拔去。
6.
AC current or voltage source. DC offset can be specified.
交流电流源或电压源。可指定直流偏移。
7.
The only access points for transients are via the AC or DC power line wires and all of the data and telcom signal wiring that enters and leaves the cabinet.
电涌的唯一进入通道是交流或直流电源线及所有进出金属箱的数据线和信号线。
8.
The alternating current supply to UPS for the main telephony equipment will be connected to an essential supply bus so that power can be provided by generators, when necessary.
主电话设备所用的UPS交流电源将接到基本电源总线，以便需要时由发电机供电。
9.
Inserting the AC supply lead into the unit automatically disconnects the batteries.
交流电源导线连接本机时，机内干电池即自动切断。
10.
Terminal pair 1-2 must be continuously energized from an A.C. supply line of electrical characteristics shown on the data plate.
接线端子1和2必须按照参数盘上显示的电特性接通交流电源。
11.
As a result, the AC supply lead must be removed from the unit in order to operate the unit on battery power.
因此，如使用机内干电池，须将连接本机之交流电源导线拔去。
12.
harmonic content of an a.c.power supply
交流电源的谐波含量
13.
non-break AC power plant
无中断交流电源设备
14.
combined a.c. and d.c. welding power source
交直流两用弧焊电源
15.
full-automatic alternating current stabilized voltage supply
全自动交流稳压电源
16.
crossed-coil type ratiometer
交叉线圈式电流比率计
17.
AC pilot relaying
交流辅助线继电保护;交流引线纵差继电保护
18.
DC current or voltage source. Magnitude of AC component can be specified.
直流电流源或电压源。可指定交流分量的大小。