In distribution box, switch cabinet, outdoor terminal box and other small power transmission and transformation equipment, humid air is easy to cause metal body rust and corrosion, and shorten the service life of the equipment.

密封箱体内的绝缘距离紧凑，如果空气太潮湿导致凝露，还会造成跳闸甚至烧毁设备的严重后果。

The insulation distance in the sealed box is compact. If the air is too wet and causes condensation, it will cause serious consequences of tripping and even burning the equipment.

在我国南方沿海地区以及秦淮线周围地区，空气水分多，用传统加热和排风除湿方法都难以奏效，特别是柜内外产生很大的温差或是梅雨潮湿季节，会发生严重的结露，直接威胁到输变电设备的安全运行。

In the southern coastal areas of China and the areas around Qinhuai line, the air moisture is abundant, so it is difficult to use the traditional heating and ventilation dehumidification methods. Especially in the case of large temperature difference inside and outside the cabinet or in the rainy season, serious condensation will occur, which directly threatens the safe operation of power transmission and transformation equipment.

通过大量实地勘察，我国电力运行系统环境普遍存在潮湿、积水问题，而这种恶劣的电气运行环境，对电气设备的使用寿命及电力系统运行环境很不利。

Through a large number of field investigation, the environment of power operation system in China is generally wet and ponding, and this kind of bad electrical operating environment is very unfavorable to the service life of electrical equipment and the operation environment of power system.

如：开关柜受潮闪爆，配电柜受潮霉变腐蚀，配电柜、配电箱内潮湿、凝露，母线桥架电气短路，电缆沟潮湿积水现象多有发生。

For example, the switch cabinet is affected by damp and flash explosion, the distribution cabinet is affected by damp and mildew corrosion, the distribution cabinet and the distribution box are wet and dewy, the bus bridge is short circuited, and the cable trench is wet and waterlogged.

怎样才能有效的解决此类问题、使电气运行环境达到完善状态，降低电力系统运行隐患？来为您解答：

How can we effectively solve such problems, make the electrical operation environment reach a perfect state, and reduce the hidden dangers of power system operation? MNS low voltage drawer cabinet is here to answer:

一、改善配电室环境。

1、 Improve the distribution room environment.

1、配电室内严禁堆放杂物，做到室内设备无积灰、油泥、地面无积尘、无积水，环境清洁整齐。

1. It is forbidden to stack sundries in the power distribution room. The indoor equipment shall be free of dust and sludge, and the ground shall be free of dust and ponding, and the environment shall be clean and tidy.

2、配电室内照明足够良好、通风设备良好。

2. The lighting in the distribution room is good enough and the ventilation equipment is good.

3、配电室室内环境温度不应超过40摄式度，相对湿度应小于80%。

3. The indoor environment temperature of the distribution room should not exceed 40 ℃ and the relative humidity should be less than 80%.

4、配电室内排水通畅，屋面、地下无渗水漏水现象。防虫、防鼠设施完善。

4. The drainage in the power distribution room is unobstructed, and there is no leakage on the roof and underground. The facilities of pest control and rodent prevention are perfect.

5、配电室做防水隔层处理。

5. The distribution room shall be treated with waterproof partition.

二、安装除湿设备。

2、 Install dehumidification equipment.

1、除湿机。

1. Dehumidifier.

由风扇将潮湿空气抽入机内，通过热交换器，此时空气中的水份冷凝成水珠， 变成干燥的空气排出机外， 如此循环使室内湿度降低。

The humid air is pumped into the unit by the fan and passed through the heat exchanger. At this time, the moisture in the air condenses into water droplets and turns into dry air to be discharged out of the unit. This circulation reduces the indoor humidity.

2、空调抽湿设备。

2. Air conditioning and dehumidification equipment.

抽湿就是利用空调的低温冷凝作用，用空调改装一下，冷凝器和蒸发器可以分开放在同一间屋子里，蒸发器做好集水防止二次蒸发，集水容器弄个小水位开关，控制个小水泵，积到一定程度就抽出排放，如果下水方便的话，直接连接到下水管道就可以了。如果需要控制室温的话冷凝器可以装到户外。

Dehumidification is to use the low-temperature condensation effect of air-conditioning. Refit it with air-conditioner. The condenser and evaporator can be placed separately in the same room. The evaporator can collect water to prevent secondary evaporation. The water collecting container has a small water level switch and controls a small water pump. If it is convenient to drain water, it can be directly connected to the sewer pipe. If the room temperature needs to be controlled, the condenser can be installed outdoors.

3、在配电柜内安装自动除湿装置。

3. The automatic dehumidifier is installed in the power distribution cabinet.

自动除湿工作，有效的将配电柜内的湿气排 MNS低压抽屉柜出柜外，以防止凝露。

Automatic dehumidification can effectively discharge the moisture in the distribution cabinet out of the cabinet to prevent condensation.