NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
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Specification 24 Lift installations
Specification 24 Lift installations
S24C1
Scope
2019: Spec E3.1: 1
S24C1
Scope
2019: Spec E3.1: 1
This Specification contains requirements for electric passenger lift installations and electrohydraulic passenger lift installations.
This Specification contains requirements for electric passenger lift installations and electrohydraulic passenger lift installations.
S24C2
Lift cars exposed to solar radiation
2019: Spec E3.1: 2
S24C2
Lift cars exposed to solar radiation
2019: Spec E3.1: 2
- mechanical ventilation at a rate of one air change per minute; or
- mechanical cooling.
To specify the ventilation requirements for a lift car exposed to solar radiation.
Lift cars exposed to solar radiation
A lift car may be on the outside of the building in which case it will be exposed to direct solar radiation at some time of the year. However, it may also be in a shaft and in some situations that may be a metal shaft. In this case the sun heats the metal and the metal, in turn, re-radiates the heat to the lift.
An alternate power supply means an alternate source of power to the primary source, in order to enhance the reliability of a system. It may be from a battery bank, from a second power grid connection or from a site generator.
S24C3
Lift car emergency lighting
2019: Spec E3.1: 3
S24C3
Lift car emergency lighting
2019: Spec E3.1: 3
A lift car must have an emergency lighting system designed—
- to come on automatically upon failure of the normal lighting supply; and
- to provide at least 20 lux of lighting for 2 hours on the alarm initiation button.
S24C4
Cooling of lift shaft
2019: Spec E3.1: 4
S24C4
Cooling of lift shaft
2019: Spec E3.1: 4
While a lift in a lift shaft is in service, the cooling of the lift shaft must—
- ensure that the dry bulb air temperature in the lift shaft does not exceed 40°C; and
- if the cooling is by a ventilation system, be provided with an air change rate determined using a temperature rise of no more than 5 K.
S24C5
Lift foyer access
2019: Spec E3.1: 5
S24C5
Lift foyer access
2019: Spec E3.1: 5
Where there is a security foyer in a building, access may be via locked security doors provided—
- security doors revert to the unlocked state in the event of—
- power failure; or
- fire alarm; and
- locked foyer areas are monitored by closed circuit television and intercom system to a 24 hour staffed location.
S24C6
Emergency access doors in a single enclosed lift shaft
2019: Spec E3.1: 6
S24C6
Emergency access doors in a single enclosed lift shaft
2019: Spec E3.1: 6
- The clear opening size of emergency doors must be not less than 600 mm wide x 980 mm high.
- Hinged doors must not open towards the interior of the lift shaft.
- Doors must be self-closing and self-locking.
- Doors must be marked on the landing side with the letters not less than 35 mm high:DANGER LIFTWELL ACCESSKEEP FURNITURE AND FIXTURES CLEAR
- Doors from the landing side must only be openable by a tool.
- Each emergency door must be provided with a positive breaking electrical contact, wired into the control circuit to prevent movement of the lift until the emergency door is both closed and locked.
- ropes are installed; and
- the vertical distance between the lift car sill and the landing door head is less than 600 mm; and
- the counterweight is resting on its fully compressed buffer.