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[23通信] A320 放电刷( STATIC DISCHARGERS)检查安装

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发表于 2020-5-7 22:13:10 | 显示全部楼层 |阅读模式 来自: 中国河南信阳
参考文件:AMM 23-61
知识要点:
        1. 飞机在飞行中会积累电荷,带上静电,放电时(电晕放电)便给机上电子设备的接收造成干扰。放电刷的作用就是放掉静电而又降低甚至消除干扰。
1.General
During flight, the aircraft becomes charged with static electricity. If the discharge of the static electricity is not controlled, it causes interference in the communications and navigation systems.
To decrease the effect of this interference, static dischargers are installed.
2. 检查
2.1 航后进行一般目视检查:是否在位,有无折断、分叉或其他明显变形。
2.2 详细目视检查:放电刷及其安装座是否安装牢固,是否有明显破损,是否有雷击现象。(烧蚀、小坑或异样突起)
Inspection of the Static Dischargers
Examine the static dischargers to make sure that:
there is no distortion
there is no damage to the covers
there is no corrosion of the bases
there is no damage to the tips
the screws are tight and serviceable
they are correctly attached.

Bonding Resistance
Static discharger retainer to aircraft structure:
(a)Make sure that the bonding resistance is correct
(2)Static discharger tip to static discharger retainer:
(a)Use a MEGOHMMETER 500 MOHMS set to 500 VDC to measure the resistance between the tip of the static discharger and the static discharger retainer as follows:
Connect one probe to the tip of the applicable static discharger.
Put the other probe against the side of the applicable static discharger retainer.
With one lead attached to the retainer, attach the other lead to a piece of wet SPONGE or ABRASIVE - FINE WIRE WOOL (to touch the tip of the discharger).
(b)Measure the resistance values that follow:
For type 'A', between 6 and 120 megohms
For type 'B', between 6 and 200 megohms.
3. 安装
按安装的位置,一般分两种,后沿和外侧(顶部)。其安装方法不一样。
3.1 后沿放电刷的安装方法:通过紧固放电刷自带的内六角头螺钉来固定放电刷。3.2侧面(顶部)放电刷的安装:通过紧固基座上的内六角头螺钉来固定放电刷
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Each static discharger assembly has a retainer and a static discharger.
The retainer is attached to the structure with rivets. The static discharger is attached to its retainer with one screw, to make it easy to replace.The static discharger assemblies are installed at the tips of:
每个静电放电器组件有一挡圈和一静电放电刷。通过柳接挡圈连接到构件。静电放电刷通过螺钉和挡圈连接,以便容易更换。静电放电刷组件安装在尖端:
The horizontal stabilizer
The vertical stabilizer
The elevators
The rudder.   

水平安定面
垂直安定面
升降舵
方向舱
They are also installed on the trailing edges of:
The wing tip fence
The wing fixed structure        
The ailerons        
The elevators        
The rudder
The flap track movable-fairings.
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注意事项
TASK 23-61-41-400-001-A
Installation of the Static Discharger
WARNING:
MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

Operation/Control and Indicating
The static dischargers:
Decrease the voltage level necessary to start the corona discharge
Make very low radio-frequency field-strength in areas and thus cause a discharge in these areas.
Discharge the static electricity charge.
The effect is to decrease the interferences in the communications and navigation systems.
静电放电刷:
减小电压电平,必要时启动电晕放电
使用低无线电频率场强区域以在这些区域中使放电发生
释放静电。
这些工作将减少在通讯和导航系统的干扰
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发表于 2020-5-8 09:09:00 来自手机 | 显示全部楼层 来自: 中国
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发表于 2020-8-29 12:55:38 来自手机 | 显示全部楼层 来自: 中国陕西西安
不测绝缘电阻和对地电阻吗?
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发表于 2021-1-11 13:19:53 | 显示全部楼层 来自: 中国上海
RETAINER翻译不叫挡圈,叫底座
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