Livestock fan ventilation ventilation time requirements

Livestock fan in the life will be common to its shadow, its main function is ventilation, then in different occasions, the ventilation of the wind turbine ventilation, what time requirements?
1, the general environmental requirements of the number of livestock fans ventilation for about 28 hours each time;
2, crowded places, for about 35 hours each time;
3, there are heating equipment production workshop, animal husbandry fan for 45 hours each time;
4, high temperature and pollution of the workshop, for 55 hours each time;
5, in the more humid areas to increase the number of appropriate, on the contrary should be reduced accordingly.

Livestock fan ventilation ventilation time requirementsultima modifica: 2017-07-01T13:10:12+02:00da shoelike
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