How to prevent moisture and dehumidification for electric equipment?

How to prevent moisture and dehumidification for electric equipment? Use industrial dehumidifier. In the humid environment, indoor power facilities are facing more and more obvious threats, which have a great impact on the safe operation of electrical equipment. In electrical engineering, when the relative humidity is greater than 80% RH, it is called high humidity; High humidity is the main factor of electrical equipment accidents.

For people who have been engaged in electrical work for a long time, the fault prone season of electrical equipment is wet spring; When the temperature suddenly changes or the temperature difference between day and night is large (suddenly decreased, increased), the electrical equipment is often prone to failure. At this time, the equipment operation management personnel need to pay more attention to the safe operation of the equipment.

(1) humidity and insulation strength: humid air can reduce the insulation strength of electrical equipment. On the one hand, the humidity is too high, so that the insulation performance of the air is reduced. Many places in the switchgear are insulated by air gap.

On the other hand, the moisture in the air adheres to the surface of insulating materials, which reduces the insulation resistance of electrical equipment. Especially for the equipment with long service life, the humidity will be more serious and the insulation resistance will be lower due to the dust inside to absorb moisture. The leakage current of equipment increases greatly, even causes insulation breakdown and accidents.

Humidity and mold: humid air is conducive to the growth of mold. The practice shows that when the temperature is 25 ~ 30 ℃ and the relative humidity is 75% ~ 95%, it is a good condition for mold growth. Mold contains a lot of water, so that the insulation performance of the equipment will be greatly reduced. For some porous insulating materials, mold roots can also penetrate into the interior of the material, causing insulation breakdown.

(3) humidity and metal corrosion: humid air will rust conductive metal, magnetic silicon steel sheet and metal shell in power equipment. It will reduce the performance and service life of the equipment, and even cause electrical failure.

The harm of humidity to electrical equipment can not be ignored! So, how to prevent moisture and dehumidification of electrical equipment? Use industrial dehumidifier, it's OK! In the distribution room, substation, high voltage room and machine room and other power facilities, the corresponding industrial dehumidifier is configured according to the actual situation, and the indoor humidity is strictly controlled below 70% RH, which can effectively avoid the damage of power equipment by humidity and ensure its safe operation!