When are sprinklers required?
Throughout class 1 – 9 buildings if any part of the building has an effective height of more
than 25 m.
Table E1.5 REQUIREMENTS FOR SPRINKLERS
Occupancy | When sprinklers are required | ||||
---|---|---|---|---|---|
All classes— | Throughout the whole building if any part of the building has an effective height of more than 25 m. | ||||
(a) | including an open-deck carpark within a multi-classified building; but | ||||
(b) | excluding— | ||||
(i) an open-deck carpark being a separate building; and | |||||
(ii) a Class 8 electricity network substation, with a floor area not more than 200 m2, located within a multi-classified building. | |||||
Class 6 | In fire compartments where either of the following apply: | ||||
(a) | A floor area of more than 3 500 m2. | ||||
(b) | A volume more than 21 000 m3. | ||||
Class 7a, other than open-deck carparks | In fire compartments where more than 40 vehicles are accommodated. | ||||
Class 9c aged care building | Throughout the building and any fire compartment containing a Class 9c part. | ||||
Class 9b theatres, stages & public halls | see Part H1 | ||||
Atrium construction | see Part G3 | ||||
Large isolated buildings | see Clause C2.3 | ||||
Occupancies of excessive hazard (see Note 3) | In fire compartments where either of the following apply: | ||||
(a) | A floor area of more than 2 000 m2. | ||||
(b) | A volume of more than 12 000 m3. | ||||
Notes: | |||||
1. | See Specification C1.1 for use of sprinklers in Class 2 buildings and carparks generally. | ||||
2. | See Part E2 for use of sprinklers to satisfy Smoke Hazard Management provisions. | ||||
3. | For the purposes of this Table, occupancies of excessive fire hazard comprise buildings which contain— | ||||
(a) | hazardous processes or storage including the following: | ||||
(i) | Aircraft hangars. | ||||
(ii) | Cane furnishing manufacture, processing and storage. | ||||
(iii) | Fire-lighter and fireworks manufacture and warehousing. | ||||
(iv) | Foam plastic and foam plastic goods manufacture, processing and warehousing (e.g. furniture factory). | ||||
(v) | Hydrocarbon based sheet product, manufacture, processing and warehousing (e.g. vinyl floor coverings). | ||||
(vi) | Woodwool and other flammable loose fibrous material manufacture. | ||||
(b) | Combustible Goods with an aggregate volume exceeding 1000 m3 and stored to a height greater than 4 m including the following: | ||||
(i) | Aerosol packs with flammable contents. | ||||
(ii) | Carpets and clothing. | ||||
(iii) | Electrical appliances. | ||||
(iv) | Combustible compressed fibreboards (low and high density) and plywoods. | ||||
(v) | Combustible cartons, irrespective of content | ||||
(vi) | Esparto and other fibrous combustible material. | ||||
(vii) | Furniture including timber, cane and composite, where foamed rubber or plastics are incorporated. | ||||
(viii) | Paper storage (all forms of new or waste) (e.g. bales, sheet, horizontal or vertical rolls, waxed coated or processed). | ||||
(ix) | Textiles raw and finished, eg, rolled cloth, clothing and manchester. | ||||
(x) | Timber storage including sheets, planks, boards, joists and cut sizes. | ||||
(xi) | Vinyl, plastic, foamed plastic, rubber and other combustible sheets, offcuts and random pieces and rolled material storage, eg, carpet, tar paper, linoleum, wood veneer and foam mattresses. | ||||
(xii) | All materials having wrappings or preformed containers of foamed plastics. |
The type of sprinkler system to be installed will depend on the hazard classification of the building according to the NCC.
The 3 main hazzard classifications are :
- Light Hazard
- Ordinary (OH1 – OH3)
- High Hazard
The main difference between the 3 categories is the volumes of water and storage required increases with the hazard classifications. i.e High Hazard required more water, in higher quantities in a shorter time.