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For the purpose of Part 3 of Article II of this chapter, other additional terms used hereinafter are hereby defined as follows:
“Fire pump.” A device used for supplying water to an inside standpipe system at the pressure required by the system.
“Pressure maintenance pump.” A small centrifugal pump under automatic control used to maintain pressure on the system to avoid frequent operation of the fire pump.
“Siamese connections.” A two or other multiple inlet fitting installed on the outside of a building and connected to the standpipe main of an inside standpipe system for the use of the fire department only, to supply water to the system.
Water supply piping in an inside standpipe system. The sections of the piping are:
(1) Pump suction. The pipe which conveys the water from the city main or other source of supply to the fire pump.
(2) Standpipe main. The pipe which conveys the water from the fire pump to the standpipe risers.
(3) Standpipe risers, or standpipe. A vertical pipe which extends upward through a building and conveys the water from the standpipe main to the hose outlets
“Zone.” A portion of a standpipe system which supplies water to a number of consecutive stories in a building.
(Prior code § 91-54; Amend Coun. J. 10-30-96, p. 31261, § 1)