Article XI — Fire Pump

Every highrise building shall be equipped with two primary fire pumps, one electric and one diesel. Each pump shall be capable of supplying five hundred (500) gpm for the first standpipe and two hundred fifty (250) gpm for each additional required standpipe, not to exceed two thousand five hundred (2500) gpm at a minimum of one hundred (100) psi at the top most outlet, plus fire sprinkler demand.

Secondary fire pumps shall be required in two hundred seventy-five (275) foot high intervals. When secondary fire pumps are required they shall be so placed as to divide the upper portion of the building into equal sections. Under no condition shall any fire pump be required to pump more than two hundred seventy-five (275) feet vertically.

Piping systems shall not be subjected to pressures greater than those for which the system has been designed and tested. Piping tests shall be at pressure at least fifty (50) pounds more than the maximum pressure that will be required to deliver the required water throughout the building. (N.F.P.A. 13, 1-11.2.1) Where it is necessary to install a fire pump above the ground level, the fire pump shall be electrically driven and have its feeder conductors installed in rigid metal conduit that is located in a totally protected area, or shaft that has a minimum fire resistant rating of two hours. (Prior code §§ 9.28.1273, 15.17.1701)

Fire pumps and associated equipment shall be located in a separate two-hour fire resistive room. There shall be no other equipment in the room.

• A. Location of the fire pumps, diesel fuel tanks, and controls shall be approved by the authority having jurisdiction prior to installation.

B. When a fire pump is located in a basement or other areas subjected to flooding, sump pump(s) shall be installed. Sump pumps shall be connected to the standby power system. The sump water level shall be monitored in the fire control room. A "trouble" signal shall be transmitted when water level rises above normal. (Prior code §§ 9.28.1274, 15.17.1702)

15.100.760 Fuel supply.

Fuel supply for diesel fire pumps shall be of sufficient size for at least four hours operation at full power. Fuel tanks shall comply with U.F.C. Article 79.

Filling of fuel tanks shall be accomplished from the exterior of the building. (Prior code §§ 9.28.1275, 15.17.1703)

During the construction, when standpipes exceed twenty (20) floors (or two hundred seventy-five (275) feet) a temporary or permanent pump shall be installed and connected at that level and be available for fire department use. A manual switch shall be provided at the ground level at an approved location for manual control of the pump. The standpipe shall have the required number of inlets. (Prior code §§ 9.28.1276, 15.17.1704)