FRNSW pump performance for high rise buildings
Clause 7.7 of Australian Standard AS 2419.1-2005 requires a ‘fire brigade relay pump’ be installed in buildings having an effective height greater than 50 m. The fire hydrant system is to be designed for a ‘boost pressure’ of 950 kPa being input into the fire brigade booster connection from a standard FRNSW pumper. Hydraulic consultants should use this FRNSW pump performance input when specifying the duty of the fire brigade relay pump used in the design.
As the fire brigade relay pump requires a full flow bypass for redundancy purposes, any building having an effective height greater than 100 m should be fitted with a PN 35 rated fire brigade booster connection and have suitable high pressure Storz fittings for use by an appropriate pumping appliance.
Updated: 21st October 2019