What are the moisture-proof measures for power distribution cabinet in humid environment?
Publish Time: 2024-12-16
As an important part of the power system, the stable operation of power distribution cabinet is crucial to ensure power supply. However, in a humid environment, water vapor is easily accumulated inside the power distribution cabinet, causing electrical components to be damp, insulation performance to deteriorate, and even short circuits and failures to occur. Therefore, taking effective moisture-proof measures is of great significance to extending the service life of the power distribution cabinet and ensuring power safety.
First of all, improving the environment in which the power distribution cabinet is located is the key. The distribution room should be kept clean and tidy, and it is strictly forbidden to pile up debris. Ensure that the ventilation equipment is good, the indoor temperature is moderate, and the relative humidity is controlled within a reasonable range. For distribution rooms in underground or closed humid environments, dehumidification equipment such as dehumidifiers or air conditioning dehumidification equipment should be installed to reduce indoor humidity.
Secondly, for the power distribution cabinet itself, a variety of moisture-proof measures can be taken. On the one hand, the power distribution cabinet can be sealed, and the ventilation windows and vents of the high-voltage room can be filtered to prevent humid air from entering. On the other hand, the cable trenches and cable tunnels at the bottom of the power distribution cabinet should be waterproof and sealed, and natural ventilation and moisture removal channels should be installed to keep the air in the cable tunnel dry.
In addition, for power distribution cabinets that have already experienced condensation, a condensation device or dehumidification system can be used to detect the environment inside the cabinet through a temperature and humidity sensor. When the humidity exceeds the set value, the heating circuit is started to prevent condensation. At the same time, you can also consider hanging water-absorbing materials such as silica gel bags in the cabinet, but it should be noted that its water absorption effect is limited and needs to be replaced regularly.
Finally, the power distribution cabinet should be inspected and maintained regularly to promptly detect and deal with moisture problems. During the inspection, focus should be placed on whether there are water droplets, condensation, etc. in the cabinet, and whether the cable holes are tightly sealed to prevent moisture from intruding.
In summary, moisture-proof measures for power distribution cabinets in humid environments involve multiple aspects such as environmental improvement, equipment sealing, use of dehumidification equipment, installation of condensation devices, and regular inspections. Only by comprehensively considering and taking effective measures can the stable operation of the power distribution cabinet in a humid environment be ensured, and the safe and reliable power supply can be guaranteed.
