Most of the switches you use to control the electrical power system are on the electrical system control panel. The electrical system control panel is on the P5 overhead panel.
用来控制电源系统的大多数开关都在电源系统控制面板上。电源系统控制面板在P5头顶面板上

Supply External Power 接通外部电源

• Supply external power to the ground service buses 为地面勤务汇流条接通外部电源
• Supply external power to the 115V AC transfer buses 为115V交流转换汇流条接通外部电源

Remove External Power 断开外部电源

• Remove external power from the ground service buses 从地面勤务汇流条上断开外部电源
• Remove external power from the 115V ac transfer buses 从115V交流转换汇流条断开外部电源

Supply External Power 接通外部电源

Supply external power to the ground service buses 为地面勤务汇流条接通外部电源

1. Open the External Power Receptacle Door. 打开外电源插座盖板。
2. Install the power cable to the external power receptacle. 将电源线连接到外部电源插座上。

3. Energize the external power cable. 给外部电源线供电。

   

4. Make sure these lights on the external power panel, P19 are on: 确保外电源面板P19上的下列灯点亮：

   • EXTERNAL PWR CONN 外部电源已连接
   • EXTERNAL PWR NOT IN USE 外部电源未使用

5. Make sure the GRD POWER AVAILABLE light on the P5-4 panel comes on. 确保P5-4面板上的GRD POWER AVAILABLE 灯点亮。

   

6. Push the GROUND SERVICE switch on the FWD ATTENDANT panel, P13. 按压FWD ATTENDANT 面板P13上的GROUND SERVICE 电门。
7. Make sure the light in the GROUND SERVICE switch comes on. 确保 GROUND SERVICE 电门上的灯点亮。
8. Make sure the EXTERNAL PWR NOT IN USE light on the P19 panel is off. 确保P19面板上的EXTERNAL PWR NOT IN USE灯熄灭。

Supply external power to the 115V AC transfer buses 为115V交流转换汇流条接通外部电源

1. Set the BAT switch located on the P5-13 panel to the ON position. 设置P5-13面板上BAT电门到ON位。
   

2. Set the GRD POWER switch on the P5-4 panel to the ON position. 设置 P5-4 面板上的 GRD PWR 电门到 ON 位。
   

   WHEN APPLYING 115V AC, 400HZ EXTERNAL OR APU GENERATOR POWER, THE STANDBY HYDRAULIC PUMP CAN OPERATE FOR APPROX 4 SECONDS AND MAY MOVE THE RUDDER AND THRUST REVERSERS. TO PREVENT POSSIBLE INJURY, MAKE SURE THE RUDDER AND THRUST REVERSERS ARE CLEAR OF PERSONNEL BEFORE APPLYING POWER. 当接通115V AC，400HZ外部或者APU发电机电源时，备用液压泵会工作大概4秒，这可能会造成方向舵和反推的移动。为避免可能的人员伤害，供电前确保人员远离方向舵和反推。

3. Make sure these lights on the P5-4 panel go off: 确保P5-4面板上这些灯熄灭：

   • 1 SOURCE OFF
   • 2 SOURCE OFF
   • 1 TRANSFER BUS OFF
   • 2 TRANSFER BUS OFF

4. Make sure the EXTERNAL PWR NOT IN USE light on the P19 panel is off. 确保P19面板上的EXTERNAL PWR NOT IN USE灯熄灭。

   ---

   Remove External Power 断开外部电源

   Remove external power from the ground service buses 从地面勤务汇流条上断开外部电源

5. Push the GROUND SERVICE switch on the FWD ATTENDANT panel, P13. 按压FWD ATTENDANT 面板P13上的GROUND SERVICE 电门。

   • Make sure the light in the GROUND SERVICE switch goes off. 确保GROUND SERVICE 电门上的灯熄灭。
6. Make sure the EXTERNAL POWER NOT IN USE light on the P19 panel comes on. 确保P19面板上的EXTERNAL PWR NOT IN USE灯点亮。
7. Remove power from the external power cable. 断开外部电源线上的电源。
8. Make sure the EXTERNAL POWER CONN light on the P19 panel goes off. 确保P19面板上的EXTERNAL POWER CONN 灯熄灭。
9. Remove the external power cable. 拆下外部电源线。
10. Make sure the EXTERNAL POWER NOT IN USE light on the P19 panel goes off. 确保P19面板上的EXTERNAL PWR NOT IN USE灯熄灭。
11. Close the External Power Receptacle Door. 关闭外电源插座盖板。

Remove external power from the 115V ac transfer buses 从115V交流转换汇流条断开外部电源

1. Set the GRD PWR switch on the P5-4 panel to the OFF position. 设置P5-4面板上的GRD PWR电门到OFF位。
2. Make sure the GRD POWER AVAILABLE light on the P5-4 stays on. 确保P5-4面板上的GRD POWER AVAILABLE灯保持亮。

3. Make sure these lights on the P5-4 panel come on: 确保P5-4面板上的下列灯点亮:

   • 1 SOURCE OFF
   • 2 SOURCE OFF
   • 1 TRANSFER BUS OFF
   • 2 TRANSFER BUS OFF
4. Set the BAT switch on the P5-13 panel to the OFF position. 设置P5-13面板上的BAT电门到OFF位。
5. Make sure the EXTERNAL POWER NOT IN USE light on the P19 panel comes on. 确保P19面板上的EXTERNAL PWR NOT IN USE灯点亮。
6. Remove power from the external power cable. 断开外部电源线上的电源。
7. Make sure the EXTERNAL POWER CONN light on the P19 panel goes off. 确保P19面板上的EXTERNAL POWER CONN 灯熄灭。
8. Remove the external power cable. 拆下外部电源线。
9. Make sure the EXTERNAL POWER NOT IN USE light on the P19 panel goes off. 确保P19面板上的EXTERNAL PWR NOT IN USE灯熄灭。
10. Close the External Power Receptacle Door. 关闭外电源插座盖板。