How many fire hydrants should there be in the city?
According to the standard to do it, the protection radius is 150, the maximum spacing is 120, are the largest, of course, you are more sure that there is no problem with the layout.
The outdoor fire hydrant (DN100) protection radius of 150 meters, however, high-rise buildings, the radius of protection by blocking, set or several adapters should each building along the street. At present, there is no index according to the urban area allocation.
