(1)
Except as provided in Sentences (2) to (5), Articles 3.2.5.10. and 3.2.5.11., and Sentence 3.2.4.9.(2), the design, construction, installation and testing of a standpipe system shall conform to NFPA 14, “Standard for the Installation of Standpipe and Hose Systems.”
(2)
A dry standpipe that is not connected to a water supply shall not be considered as fulfilling the requirements of this Article.
(3)
If more than one standpipe is provided, the total water supply need not be more than 30 L/s.
(4)
The residual water pressure at the design flow rate at the topmost hose connection of a standpipe system that is required to be installed in a building is permitted to be less than 690 kPa provided
(a)
the building is sprinklered throughout,
(b)
the water supply at the base of the sprinkler riser is capable of meeting, without a fire pump, the design flow rate and pressure demand of the sprinkler system, including the inside and outside hose allowance, and
(c)
fire protection equipment is available to deliver, by means of the fire department connection, the full demand flow rate at a residual water pressure of 690 kPa at the topmost hose connection of the standpipe system. (See Note A-3.2.5.9.(4)(c))
(5)
A fire department connection shall be provided for every standpipe system.