How can distribution cabinet achieve normal usage conditions

2025-10-16 16:02:46

The requirements for the operating environment of Large Distribution cabinet are very strict during use. Due to the temperature, humidity, altitude, and other requirements of internal components, the operating environment of Home decoration distribution box should also be installed and used according to specific requirements. So, what are the specific requirements? Today, Mining distribution cabinet are listed for everyone.

1. Altitude: generally not exceeding 1000 meters For equipment installed at altitudes above 1000 meters, the insulation level of the external insulation should be determined by multiplying the required insulation withstand voltage by a correction factor Ka [ka=1 ÷ (1.1-H × 10-4 [x1])]. Due to the thin air in high-altitude areas, the external insulation of electrical appliances is prone to breakdown. Therefore, reinforced insulation type electrical appliances are used to increase the air insulation distance, or insulation protection measures are added inside distribution cabinet.

2. Environmental temperature: The ambient air temperature should not exceed 40 ℃ (upper limit), generally -5 ℃ (lower limit) in general areas, and -15 ℃ in severe cold areas. If the ambient temperature is too high, the conductivity of the metal will decrease, the resistance will increase, and the surface oxidation will intensify; On the other hand, excessively high temperatures can greatly shorten the lifespan of the insulation components inside the cabinet and reduce the insulation strength On the contrary, if the ambient temperature is too low, internal stress will be generated in the insulation, which will lead to the damage of the insulation.

3. Environmental humidity: The daily average value should not exceed 95%, and the monthly average value should not exceed 90%.

4. Other conditions: Places without fire, explosion hazards, serious pollution, chemical corrosion, and severe vibration.

5. Earthquake intensity: not exceeding 8 degrees.