“Statutory requirements apply to all fire-protected building classifications designated in items (1) through (18). Code compliance mandates system installation if the facility triggers any one of the following criteria.”2. Buildings with 5 or more floors (excluding the basement) and a total floor area of ​​6,000 ^m² or more.
3. The total floor area of ​​the underground shopping area is 1,000 ^m² or more.
4. Buildings with a section used as an arcade road extending 50m or more (vehicle roads such as self-parking garages and rooftop parking lots of shopping centers)

Standards for installing water inlets
1. It should have a double-mouthed shape.
2. Place signs in easily visible locations.
3. The hose connection port shall be installed at a height of 50 cm or more and 100 cm or less from the ground surface.
Standards for the installation of water outlets
1. Stairwells, emergency elevator lobbies, and locations where firefighters can effectively carry out firefighting operations.
2. It shall be installed on the third floor or higher of the building, or in the basement.
3. The horizontal distance from each part of that floor to one water outlet shall be 50m or less, and the arcade shall be 25m or less.
4. The water outlets installed on the 11th floor and above will be of the double-outlet type, and a box containing the water discharge equipment will be installed there.
5. Place signs in easily visible locations.
6. The hose connection port shall be installed at a height of 50 cm or more and 100 cm or less from the floor.