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Date：12-13-2021
Environmental conditions
Box-type substations are used in high-rise residential buildings, luxury villas, square parks, residential quarters, small and medium-sized factories, mines, oil fields, and temporary construction power for places such as power distribution systems to receive and distribute electrical energy.
Environmental conditions for use:
1. Altitude: 1000m and below.
2. Ambient temperature: -25℃～+40℃.
3. Wind speed: no more than 35m/s.
4. Relative air humidity: no more than 90% (+25°C).
5. Earthquake horizontal acceleration: not more than 0.4m/s, vertical acceleration: not more than 0.2m/s.
6. Place of use: There should be no conductive dust, corrosive, flammable, and explosive hazardous materials that are harmful to metals and insulation.
7. There is no severe vibration at the installation site, and the vertical slope is not more than 3 degrees. Environmental conditions
