Specification 12 Fire doors, smoke doors, fire windows and shutters
S12C1
Scope
2019: Spec C3.4: 1
This Specification sets out requirements for the construction of fire doors, smoke doors, fire windows and fire shutters.
S12C2
Fire doors
2019: Spec C3.4: 2
S12C3
General requirements for smoke doors
2019: Spec C3.4: 3.1
Smoke doors must be constructed so that smoke will not pass from one side of the doorway to the other and, if they are glazed, there is minimal danger of a person being injured by accidentally walking into them.
S12C4
Construction Deemed-to-Satisfy for smoke doors
2019: Spec C3.4: 3.2
A smoke door of one or two leaves satisfies S12C3 if it is constructed as follows:
- The leaves are side-hung to swing—
- in the direction of egress; or
- in both directions.
- The leaves are solid-core and at least 35 mm thick, or are capable of resisting smoke at 200°C for 30 minutes.
- The leaves are fitted with smoke seals.
- The leaves—
- are normally in the closed position; or
- operate such that—
- they are closed automatically with the automatic closing operation initiated by smoke detectors, installed in accordance with the relevant provisions of AS 1670.1, located on each side of the doorway not more than 1.5 m horizontal distance from the doorway; and
- in the event of power failure to the door, they will fail-safe in the closed position.
- The leaves return to the fully closed position after each manual opening.
- Any glazing incorporated in the door complies with AS 1288.
- If a glazed panel is capable of being mistaken for an unobstructed exit, the presence of the glass must be identified by an opaque mid-height band, mid-rail, crash-bar or other opaque construction.
S12C5
Fire shutters
2019: Spec C3.4: 4
A required fire shutter must—
- be a shutter that—
- is identical with a tested prototype that has achieved the required FRL; and
- is installed in the same manner and in an opening that is not larger than the tested prototype; and
- did not have a rise in average temperature on the side remote from the furnace of more than 140 K during the first 30 minutes of the test; or
- be a steel shutter complying with AS 1905.2 if a metallic fire shutter is not prohibited by C4D6.