In recent years, smart cities, industry, and life have flourished; As a manufacturer of sheet metal chassis and cabinets, the boxes and cabinets produced for the market need to be designed according to the environment. Different environments can easily have various impacts on electrical equipment cabinets. The environmental types in which electrical equipment is located are diverse, which can be roughly divided into natural environments, industrial environments, and some special types of environments.
In the natural environment, air humidity, sandstorm conditions, atmospheric pressure, temperature, and so on can all have an impact on it. Taking Dagang Oilfield in China as an example, the climate corresponding to the dimension of the oilfield is warm temperate zone. According to the characteristics of China's continental climate, the natural environment of Dagang Oilfield is characterized by four distinct seasons, moderate temperature, more annual precipitation in summer and less in winter, water logging in summer, and spring drought in spring. In such cases, it is necessary to design the components and casing materials of electrical equipment to prevent the impact of the surrounding natural environment.
Design of chassis and cabinet environment
The selection of electrical cabinet materials should be consistent with the surrounding temperature, humidity, dryness, and other indicators to adapt to changes in the natural environment. Under normal circumstances, the temperature of the electrical cabinet to the surrounding environment is below 55 degrees Celsius, and the average temperature of a day cannot exceed 35 degrees Celsius, with a minimum temperature of -10 degrees Celsius; The requirement for atmospheric humidity must be maintained between 20% and 80%, and condensation must not occur. If the electrical cabinet is installed in an indoor environment, it is necessary to ensure that the surrounding environment is clean and free from any conductive phenomena, as well as violent shaking and collision. If the surrounding environment cannot meet the requirements of work indicators, it is necessary to communicate with users in a timely manner and redesign. In some special environments, such as the seaside, the material settings of the cabinet should be able to ensure its strong resistance to salt spray corrosion.
The waterproof function design of the cabinet is mainly improved from the overall structure of the cabinet. For example, at the joint of the external structure of the cabinet, a sealing tape should be used to stick it, and the selection of the sealing tape should be able to resist the impact of high temperature and oxidation environment on it. At the vent of the electrical cabinet, a filter should be added to filter more dust, achieving a dustproof effect.
Environmental requirements for electric control cabinets
1. Environmental temperature: It is required to be within the range of -10 ℃ to 40 ℃. If the environmental temperature is between 40 ℃ to 50 ℃, forced ventilation measures should be taken to facilitate heat dissipation; 2. Relative humidity: not exceeding 50% RH at an ambient temperature of 40 ℃, and not exceeding 90% RH at an ambient temperature of 20 ℃; 3. Air conditions: The air must not contain excessive dust, acid salts, corrosive, conductive, or explosive gases; The power control cabinet is a metal cabinet that assembles switchgear, measuring instruments, protective appliances, and auxiliary equipment in a closed space according to electrical wiring requirements. The equipment inside the cabinet must be maintained in a certain temperature and humidity environment to operate reliably. In the event of equipment failure in the cabinet or the shutdown of the computer room air conditioning, the temperature of the control cabinet will be very high, and any abnormal environmental temperature will affect the normal operation of the equipment, This will further affect the normal operation of the computer room business, so you need a solution for the environmental temperature and humidity of the power control cabinet in the computer room
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