- Site Analysis
- Site Use
- Passive Design
- Material Use
- Wet Areas
- Health and Safety
- Other Resources
Health and Safety
Taking care with materials, equipment and work procedures and dealing with hazards.
Automatic fire sprinklers
Automatic fire sprinklers provide the most effective protection against fire damage. If a fire starts in a sprinkler-protected building, the sprinkler heads immediately above the fire will operate by discharging water to control the fire.
The most common domestic fire sprinkler systems:
- use a glass bulb, heat-sensitive element
- activate at about 68oC
- have a flat and wide spray pattern with small and medium droplet sizes
- have sprinkler heads that may be concealed, flush-mounted, side-wall or pendant type
- require a 20 mm diameter pipe connection.
If a fire develops, not all sprinkler heads will operate, but only those closest to the fire. (65% of fires are controlled by a single sprinkler head and 95% are controlled by five sprinkler heads or less).
When a sprinkler head is set off, the fire brigade is also called.
Installation and maintenance
The design and installation of a domestic sprinkler system must be carried out by a qualified practitioner, with independent inspection and certification.
Maintenance and testing should be in accordance with the relevant standards and in accordance with the manufacturer’s instructions.
The current standard NZS 4541:2013 Automatic fire sprinkler systems will be replaced by the 2020 version of the standard on 1 June 2021.
Update: 10 September 2020