Power equipment requires dehumidifiers during wet and rainy seasons

Recently, due to rainy and humid weather in the south, coupled with suspended substances in the air, the power equipment of enterprises will enter a season of frequent malfunctions. Effectively using a dehumidifier may help you avoid many malfunctions. In electrical engineering, when the relative humidity is greater than 80%, it is called a high humidity environment. So using a dehumidifier is essential.
In the southern region of China, it is continuously cloudy and rainy in March and April, with a relative humidity of over 90%. However, the required relative humidity for general electrical equipment cannot exceed 90% (25 ℃ and below). Without a dehumidifier, high air humidity can reduce the insulation performance of the air, and many parts of the switchgear rely on air gap insulation.
On the other hand, moisture in the air adheres to the surface of insulation materials, reducing the insulation resistance of electrical equipment, especially for equipment that has been in use for a long time. Due to the accumulation of dust and moisture inside, the degree of humidity will be more severe, and the insulation resistance will be lower. The leakage current of the equipment greatly increases, even causing insulation breakdown and accidents. Especially in high-voltage power facilities, it is more prone to the phenomenon of high-voltage discharge flickering. So using a dehumidifier becomes urgent.
The acidic substances secreted during the metabolic process of mold interact with insulating materials, resulting in a decrease in the insulation performance of equipment. If a dehumidifier were used, this situation would not have occurred. Wet air can also cause corrosion of conductive metals, magnetic silicon steel sheets, and metal shells in power equipment, which will reduce the performance and service life of the equipment, and even cause electrical failures. Therefore, how should enterprises cope with the operation and management of electrical equipment in humid weather?
Conditional distribution rooms and cabinets should be equipped with dehumidifiers and dehumidifiers to regulate indoor temperature and humidity. If conditions are not met, doors and windows, and electrical cabinet doors should be tightly closed when there is heavy fog to reduce the entry of humid air into the room and electrical cabinet. For some industrial electrical equipment such as motors, contactors, relays, etc., as well as some household appliances such as computers, refrigerators, televisions, etc., it is necessary to arrange the operating cycle reasonably and run it on power for a period of time every day to use its electrical operation to generate heat to drive away moisture. Or use a dehumidifier to help drive away dampness.
In the absence of a dehumidifier, some electronic circuit boards can be dried with a hair dryer and a cold air stop in a timely manner to avoid moisture and short circuits in the circuit. Some electronic and electrical components can be sealed with glass glue or paraffin to prevent moisture. Electrical maintenance personnel should increase their inspection efforts on electrical facilities, promptly identify and handle hidden dangers, and eliminate faults in the bud.
The substation and distribution room should maintain smooth drainage of cable trenches to prevent cables and wires from being submerged in water. For some electrical facilities that have a long operating time and potential for insulation performance degradation, in addition to using dry compressed air to clean dust and mold spots, a dehumidifier should also be used to do moisture-proof work. Take preventive measures, such as strengthening insulation treatment, installing insulation spacing materials, and appropriately shifting and widening the distance.
During electrical installation, it is also necessary to increase the distance between electrical components and add an additional layer of insulation material. As electrical equipment maintenance personnel, during this "extraordinary" period