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受结构制约，柴油发电机组无法做到完全防水，当雨季/台风季来临时，柴油发电机组便有可能遭受洪水、暴雨等自然灾害的影响，当柴油发电机组内部进水时，用户要及时采取必要的措施，断开外电源及蓄电池接驳线，不可运转发动机，也不可尝试盘转曲轴，禁止运转发动机，同时检查各个部位的进水情况。
Due to structural constraints, diesel generators can’t be completely waterproof.When the rainy season season comes, generator may be affected by natural disasters such as floods and rainstorms. When water enters the generator,you should take necessary measures to disconnect the external power supply and the battery connection line,prohibit running the engine, and check the water ingress of each part.
进水常见问题
1、检查排气管路（排烟管最低处或消声器）的排水构件是否有水排出。
Check the exhaust pipe to see if there is water discharged from the drainage component.
2、检查空气滤清器外壳是否有积水，滤芯是否被水浸渍。
Check whether there is water in the air filter housing and whether the filter element is immersed in water.
3、检查发电机外壳底部是否有积水。
Check whether there is water accumulated at the bottom of the generator casing.
4、检查散热器、风扇、联轴器等回转部件是否堵塞。
Check radiator, fan, coupling for blockage.
5、外部是否有机油、燃油或水的渗漏。
Whether there is leakage of organic oil, fuel or water from the outside.
6、拆下摇臂室盖，观察是否有进水。检查发电机绕组绝缘/污染情况。
Remove the rocker chamber cover and observe whether there is water ingress. Check the insulation and ontamination of the generator windings.
7、检测控制线路和输出电路的绝缘。检测控制面板模块、各仪表、告警装置、启动开关。
Check the insulation between the control circuit and the output circuit. Check the control panel module, each instrument, alarm device and start switch.
注意：绝对不能让水侵入发动机的燃烧室！
Note: Never let water enter the combustion chamber of the engine!
进水处理方法
柴油发电机组进水后的处理办法：
Treatment after water enter the generator:
当判断柴油发电机组发动机的燃烧室没有进水，绝缘符合要求时，可启动柴油发电机组。在启动时要注意以下问题：
When confirm there is no water in the combustion chamber and the insulation meets the requirements,can start the generator. Pay attention to the following issues when starting:
1、在启动前进行所有检查，包括排放燃油箱积水。电气系统逐步上电，观察是否有异常。
Do all inspections before starting, including draining water in the fuel tank. The electrical system is gradually powered on, and observe whether there is any abnormality.
2、连续启动发动机的时间不得超过30秒钟。若发动机不能着火，则检查燃油管路及电气回路，一两分钟后再次启动。
Start the engine continuously shall not exceed 30 seconds. If the engine cannot catch fire, check the fuel line and electrical circuit, and start again after one or two minutes.
3、检查发动机声音是否有异常，是否有异味。检查电气仪表的显示、液晶显示屏是否断屏或者显示不清。
Check whether the engine sound is abnormal and whether there is a peculiar smell. Check whether the display of the electrical instrument and the LCD screen are broken or unclear.
4、密切观察机油压力和水温度，如果油压或温度不符合技术规范，应关闭发动机。停机后，检查一次机油平面。
Closely observe the oil pressure and water temperature. If the oil pressure or temperature does not meet the technical specifications, the engine should be shut down. After stopping, check the oil level.
当判断发动机可能进水、发电机绝缘不符合要求时，切勿擅自维修，应寻求发电机组厂家的专业技术人员的帮助。
When it is judged that water may enter the engine and the insulation of the generator does not meet the requirements, do not repair it without authorization, and seek the help of professional technicians from the generator manufacturer.