Standby Power Supply
A standby power supply system or emergency power supply is only required for specific buildings nominated by a building surveyor/ building certifier under the Building Code of Australia (BCA) in the building approval process. Standby power supply ultimately becomes an essential safety measure in most jurisdictions in Australia
Building Code of Australia
The Building Code of Australia nominates in three areas the need for a standby power supply in clauses E3.4 and Specification G3.8, these are:
Part extract of Clause E3.4(e) Emergency lifts follows:
E3.4 Emergency lifts
(e) An emergency lift must –
(i) comply with AS 1735.2 or Appendix A of AS 1735.1; and
(ii) in a Class 9a building serving a patient care area –
(A) have minimum dimensions, measured clear of all obstructions, including handrails, etc complying with Table E3.4; and
(B) be connected to a standby power supply system where installed; and
Part extract of Specification G3.8 Clause 6: (Standby Power Supply)
- STANDBY POWER SYSTEM
(a) If a required path of travel to an exit is within an atrium, a suitable alternative power supply must be provided to operate required safety systems, including sprinkler systems and fire hydrant pumps, air handling systems, alarms, warning and communication systems and emergency lighting circuits.
The following illustration depicts what constitutes an exit from a storey. The doors entering the stairwells are generically called exit doors.