Part B4 Fire-fighting water services
Introduction to this Part
This Part sets out requirements for the design, construction, installation, replacement, repair, alteration and maintenance of any part of a fire-fighting water service from the point of connection or other acceptable source(s) of supply to the fire-fighting equipment, including hydrant, hose reel, sprinkler services and wall drencher systems.
The Objective of this Part is to—
- safeguard people from illness, injury or loss (including loss of amenity) due to the failure of a fire-fighting water installation; and
- ensure that a fire-fighting water installation is suitable; and
- conserve water and energy; and
- safeguard the environment; and
- safeguard public and private infrastructure; and
- ensure that a fire-fighting water installation is designed and is capable of being maintained so that throughout its serviceable life it will continue to satisfy Objectives (a) to (e).
Fire-fighting equipment must be provided with adequate water for its intended purpose.
BP4.1 Design, construction and installation
A fire-fighting water service must ensure the following:
Water is provided at required flow rates and pressures for the correct functioning of the fire-fighting equipment.
Accessfor maintenance of mechanical components and operational controls.
The system can be isolated for testing and maintenance.
A fire-fighting water service must avoid uncontrolled discharge or failure.
B4.2 General requirements
Fire-fighting water services for Class 2 to Class 9 buildings and structures must comply with the requirements of Part E1 in Volume One of the NCC.
The installation of a fire-fighting water service must be in accordance with—
AS/NZS 3500.1; and
Explanatory information: Cross-volume considerations
NCC Volume One Class 2 to 9 buildings
NCC Volume Two Class 1 and 10 buildings
Excavations for pipework adjacent to a building and footings
Termite management for attachments to buildings and penetrations through a slab
Penetrations for pipework through a vapour barrier
Pipework in timber bearers and joists of solid timber or engineered wood products
Fittings, fixtures and pipework installations in steel framed construction
Penetrations through a fire-resisting wall or floorC3 Protection of openings
Fixtures or fittings in a wet areaF1 Damp and weather proofing
Service pipework external to the building and penetrations through roof cladding in a bushfire prone area
Pipework sound insulation