AS/NZS 3009:1998 pdf free.Electrical installations – Emergency power supplies in hospitals.
AS/NZS 3009 sets out requirements for the design, installation and operation of emergency power supplies for power and lighting for hospitals. The Standard applies to the design, installation, operation and maintenance of those portions of the hospital electrical system in which the failure of the supply from the normal supply authority would jeopardize the effective and safe care of its patients.
Requirements for the wiring of the electrical installation for the normal supply to hospitals are specified in AS 3000 in Australia and the Electricity Regulations in New Zealand.
AS/NZS 3009 does not cover the special requirements for uninterruptible power supplies for computer equipment. These special power supplies should be the subject of separate specification and negotiation with the equipment supplier.
NOTE: This Standard does not apply to essential services (fire and smoke control equipment. emergency evacuation equipment and lifts) covered by AS 3000 in Australia and the Electricity Regulations in New Zealand.
1.2 PURPOSE The purpose of this Standard is to reduce the hazards which may arise
from interruption of the normal power supply to a hospital or portion thereof.
This Standard—
(a) specifies emergency lighting and power requirements for those portions of hospitals where restoration of such supply is considered necessary to patient care; and
(b) specifies that minimum emergency evacuation lighting is to be installed in accordance with AS/NZS 2293.1 in locations designated by the relevant building regulations.
The Standard does not prescribe the type or size of hospital or patient-care area that requires emergency power supplies. Instead it identifies those medical treatment areas or functions of which regular usage necessitates restoration of lighting and power considered necessary to the continuing safe care of patients. This identification provides a basis for hospital administrators and designers to evaluate the need and type of emergency power and lighting to be provided in a patient-care area.
1.4 DEFINITIONS For the purpose of this Standard, the definitions below apply.
1.4.1 Conditional circuits—those circuits which arc not required to have power restored within 2 mm and for which power restoration is not considered necessary for continued patient care, but which may, for other reasons, bc connected to the emergency power supply.
1.4.2 Delayed vital circuits—those circuits identified in Table 2.1 which can tolerate interruption of power supply for up to 2 mm.
1.4.3 Emergency circuits–—lighting and power circuits which, in the event of failure of the normal supply, will operate to permit necessary patient care to be continued.
1.4.4 Emergency evacuation lighting—lighting which is provided to ensure that the means of escape can be safely and effectively used at all times.
1.4.5 Emergency lighting—lighting necessary for patient care.
1.4.6 Emergency supply—a supply system used in the event of failure of the normal supply, in order to maintain operation of’ the installation or part thereof, for safety reasons.
1.4.7 Essential services—the electrical installations of building services classified by AS 3000 in Australia and the Electricity Regulations in New Zealand as essential for the safe operation of fire detection, warning and extinguishing systems, smoke control systems, evacuation systems and the safety of persons using lifts.AS/NZS 3009 pdf download.