Installation requirements for large industrial fans?

The basic installation requirements of the large industrial fan in Onfu need only consider the basic requirements, such as the size of your building facilities, the best height of roof or ceiling should be 4.5 meters, and at least one meter above the safety space. Leave more than 0.45 meters of safe space at the end of the wind blade, with 380V power supply.
1. Architectural structure: H-beam, I-beam, brick-concrete square beam, spherical column structure, etc.
2. The total height of the building should not be less than 4.5 meters.
3. The safe distance between the fan blade and the obstacle is not less than 0.2 meters.
4. Input power supply: 380V/220V.