Why are electrical equipment easy to absorb moisture?

Once the power equipment is damp, there will be many problems, mainly in the following aspects:

1. Reduce dielectric strength: once the power equipment is damp, then it will lead to a decrease in dielectric strength, taking the air switch as an example, if the air humidity is too high, then the insulation performance of the air will decline, at this time the air switch will trip, resulting in a problem with the power **, many families trip in the south and the rainy season. There is also because of the sudden drop in temperature, the moisture will form water droplets attached to the surface of the insulating material, resulting in the reduction of the insulation resistance of electrical equipment, which is for those equipment with a long service life, due to the dust inside will absorb water vapor, appear more humid, so that the insulation resistance will be lower, it is easy to short-circuit, resulting in current leakage, breakdown insulation, and serious safety production accidents.

2. The humidity is too high, resulting in the acceleration of metal oxidation and rusting of electrical equipment, such as conductive metals in power equipment, magnetic conductive silicon steel sheets, and metal shells, which are easy to rust in a high humidity environment, so that the service life of the equipment decreases, not to mention, its performance can not be guaranteed, and electrical failures will occur if you are not careful.

3. Nourish mold: If the air humidity is too high, mold will breed, and mold will also have a destructive effect on electrical equipment. Don't think that mold only destroys food, clothing, and wood products, it also has a corrosive effect on metal.

Because the secretions of many molds are acidic, they can be attacked by metals and other materials. Moreover, once mold penetrates deep into the interior of some porous electrical equipment, the moisture carried by it will reduce the performance of these insulating materials, and even cause insulation breakdown.

So how to prevent the emergence of condensation problems in power equipment? Many power workers have also taken a lot of preventive measures, such as installing air conditioners or dehumidifiers in the power distribution room or high-voltage room, installing heating plates in the cabinets, etc., but these methods are not the symptoms, and the damp problem has not been effectively solved.

Engaged in the comprehensive management of the electrical environment for many years, Sabre believes that the damp condensation of power equipment is sometimes not only due to the climate, but also has a great relationship with the structure of the power equipment itself and the geographical environment of the operation of the equipment, and the causes of the damp condensation of electrical equipment should be analyzed from multiple angles, such as water accumulation in the cable trench, moist air pouring into the power cabinet, humid geographical environment, poor sealing of power equipment inlet and outlet lines and door cracks, poor closure in the high-voltage room or power distribution room, no effective moisture driving equipment, etc. Saberi believes that the power industry staff may wish to consult a professional power dehumidification agency when driving the tide of power equipment, and their rich work experience will help the power industry to better analyze the causes of humidity and tailor the dehumidification plan according to the specific reasons, so as to truly achieve twice the result with half the effort, and at the same time make more efficient dehumidification equipment and dehumidification solutions can serve the power industry.

Electrical equipment generally has magnets inside, so it is easy to absorb moisture. There is heat in it, and it is easy to absorb moisture.

Shanghai typhoon "anemone" just ushered in a high temperature day, which greatly produced steam, so that household appliances are damp and over time will speed up the corrosion of components, especially such as color TV, computer and other electrical appliances with dense conductive lines, they are easy to attach some extremely fine water droplets in the humid air, once it adsorbs the dust in the air, it will have strong conductivity, which will cause short circuit on the circuit board, cause electrical failure, and even make electrical appliances scrapped.

After the TV is turned on, some will make a "pop, pop" sound, some only have sound and no image, some have too many colors (see red, blue) and so on although there are images, only hear the hard disk self-test sound and can not see the screen display, the screen is black after a few minutes of display, and there is also a loud noise, CD or DV black screen when turned on, sometimes there will be mildew spots on the lens, and the LCD screen displays messy stripes; The DVD player cannot read the disk; The washing machine does not work. These are all symptoms of dampness in household appliances.