In small power transmission and transformation equipment such as distribution box, switch cabinet, outdoor terminal box, the air humidity is easy to cause rust and corrosion of the metal body, shortening the service life of the equipment.
The insulation distance in the sealed box is compact, and if the air is too humid to cause condensation, it will cause tripping and even burn the equipment.
In the southern coastal areas of China and the areas around the Qinhuai Line, the air moisture is much, and the traditional heating and exhaust dehumidification methods are difficult to work, especially when there is a large temperature difference inside and outside the cabinet or the rainy wet season, serious condensation will occur, which directly threatens the safe operation of power transmission and transformation equipment.
Through a large number of field investigations, China's power operating system environment is generally wet, water problems, and this bad electrical operating environment, the service life of electrical equipment and power system operating environment is extremely unfavorable.
Such as: switch cabinet by moisture flash, distribution cabinet by moisture mildew corrosion, distribution cabinet, distribution box damp, condensation, bus bridge electrical short circuit, cable trench wet water phenomenon occurs.
How can we effectively solve such problems, make the electrical operating environment reach the best state, and reduce the hidden dangers of power system operation? Jiangxi a Kai Electric to answer your questions:
First, improve the environment of the power distribution room.
1, the distribution room is strictly prohibited to pile up debris, so that indoor equipment no ash, mud, no dust on the ground, no water, clean and tidy environment.
2, the distribution room lighting is good enough, good ventilation equipment.
3, the indoor ambient temperature of the power distribution room should not exceed 40 degrees, and the relative humidity should be less than 80%.
4, distribution room drainage smooth, roof, underground no seepage water leakage phenomenon. Insect and rat prevention facilities are perfect.
5, the distribution room to do waterproof layer treatment.
2. Install dehumidification equipment.
1. Dehumidifier.
The humid air is pumped into the machine by the fan, and through the heat exchanger, the water in the air is condensed into water droplets, and the dry air is discharged out of the machine, so that the indoor humidity is reduced.
2, air conditioning dehumidification equipment.
Dehumidification is the use of low temperature condensation of air conditioning, with air conditioning modification, condenser and evaporator can be separated in the same room, evaporator to do a good collection of water to prevent secondary evaporation, water collection container to make a small water level switch, control a small pump, to a certain extent on the discharge, if the water is convenient, directly connected to the sewer pipe can be. If you need to control the room temperature, the condenser can be installed outdoors.
3. Install automatic dehumidification device in the distribution cabinet.
Automatic dehumidification works to effectively discharge the moisture in the distribution cabinet to the outside of the cabinet to prevent condensation.