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AS/NZS 3003:2018
[Current]Electrical installations - Patient areas
This Standard specifies safety requirements for electrical installations in areas where it is intended that low-voltage medical electrical equipment will be used on a patient. It applies to new electrical installations and to alterations, additions and repairs of existing electrical installations.
Published: 26/03/2018
Pages: 85
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 General
1.3 Referenced documents
1.4 Acronyms
1.5 Definitions
2 General requirements for body-protected and cardiac-protected electrical areas
2.1 General
2.2 Classification of patient areas
2.2.1 Documentation
2.2.2 Patient area boundaries
2.2.3 Patient areas required to be wired as cardiac-protected electrical areas
2.2.4 Patient areas required to be wired as body-protected electrical areas
2.3 Supply of electricity to patient areas
2.4 Low-voltage A.C. Supplies
2.4.1 Separation of circuits
2.4.1.1 Body-protected electrical areas
2.4.1.2 Cardiac-protected electrical areas
2.4.1.3 Body-protected and cardiac-protected electrical areas
2.4.2 Protection of wiring systems and electrical equipment against mechanical damage
2.4.3 Leakage protective device protection required
2.4.3.1 General
2.4.3.1.1 Electrical points
2.4.3.1.2 Extra-low-voltage (ELV) charging sockets-outlets
2.4.3.2 Socket-outlets requiring LPD protection
2.4.3.2.1 General
2.4.3.2.2 Locations of socket-outlets requiring LPD protection
2.4.3.2.3 Types of socket-outlets requiring LPD protection
2.4.3.3 Permanently-wired medical electrical equipment requiring LPD protection
2.4.4 Low-voltage uninterruptible supplies (UPS)
2.4.4.1 General
2.4.4.2 Leakage protective device protection of uninterruptible supplies (UPS)
2.4.4.3 Uninterruptable power supply status indicators
2.5 Low-voltage D.C. supplies
2.6 Access to controls and indicators
2.7 Socket-outlets
2.7.1 Number of socket-outlets
2.7.2 Socket-outlets requiring isolating switches
2.7.3 Socket-outlets for cleaning equipment
2.7.3.1 Location of socket-outlets identified ‘CLEANING PURPOSES ONLY’
2.7.3.2 Protection of socket-outlets identified ‘CLEANING PURPOSES ONLY’
2.7.4 Identification of socket-outlets
2.7.4.1 Identification of socket-outlets protected by LPDs
2.7.4.2 Switch indication
2.7.4.3 Colour coding
2.7.4.3.1 Low voltage (LV) socket-outlets
2.7.4.3.2 Extra-low-voltage (ELV) socket-outlets
2.7.4.4 Power available indication for RCD-protected socket-outlets
2.7.5 Socket-outlet switches
2.8 Residual current devices (RCDs)
2.8.1 Type of RCD
2.8.2 Discrimination
2.8.3 Number and disposition of electrical points controlled by RCDs
2.8.4 Indication
2.8.5 Identification of RCDs
2.8.6 Permanently wired equipment
2.8.7 Test facility
2.8.8 Location of RCDs
2.9 Low-voltage isolated supplies
2.9.1 General
2.9.2 Isolation transformers
2.9.3 Overcurrent circuit-breaker
2.9.4 Overload monitor
2.9.5 Line isolation monitor
2.9.5.1 General
2.9.5.2 Identification of LIMs
2.9.6 System prospective hazard current
2.9.7 Number and disposition of electrical points protected by an isolated supply
2.9.8 Permanently wired equipment
2.9.9 Test facility
2.10 Isolation switches
2.11 Extra-low-voltage (ELV) supplies
2.11.1 General
2.11.2 Source of ELV supply
2.12 Identification
2.12.1 General
2.12.2 Identification of patient areas
2.13 Testing and verification of electrical work
2.14 Additional documentation
3 Additional requirements for body-protected electrical areas
3.1 General
3.2 Earthing
4 Additional requirements for cardiac-protected electrical areas
4.1 General
4.2 Earth-free ELV
4.3 Disposition of electrical points controlled by LPDs
4.4 Earthing and equipotential bonding
4.4.1 General
4.4.2 Equipotential earthing system
4.4.2.1 General
4.4.2.2 Provision of equipotential earthing system
4.4.2.3 Form of equipotential earthing system
4.4.2.4 Earthing of socket-outlets
4.4.2.4.1 General
4.4.2.4.2 Protective earthing conductor
4.4.2.5 Earthing of permanently installed electrical equipment
4.4.2.5.1 Points required to be earthed via the EP junction or node
4.4.2.5.2 Method of connecting the earthing conductor to the equipment
4.4.2.5.3 Method of connecting the earthing conductor to the EP junction or node
4.4.2.5.4 Insulation and segregation of earthing conductors
4.4.2.5.5 Maximum resistance of earthing conductors
4.4.2.6 Equipotential earthing of non-electrical equipment and fittings
4.4.2.7 Earthing connections
4.4.2.8 Equipotential (EP) junction
4.4.2.9 Equipotential (EP) test facility
4.4.2.10 Equipotential (EP) test terminal
4.4.3 Return earths
5 Special patient areas
5.1 General
5.2 Homecare installations
5.2.1 Conformance with AS/NZS 3000
5.2.2 Conformance with this Standard
5.2.2.1 Leakage protective device (LPD) protection
5.2.2.2 Socket-outlets
5.2.2.3 Circuit protection and identification
5.2.3 Conformance with this Standard
5.2.3.1 Leakage protective device (LPD) protection
5.2.3.2 Socket-outlets
5.2.3.3 Circuit protection and identification
5.3 Disability and aged care installations
5.4 Installations for self-harm patients
5.4.1 General
5.4.2 Identification
6 Alterations and repairs to electrical installations in patient areas
6.1 Introduction
6.2 Alterations
6.2.1 General
6.2.2 Patient areas not signposted as cardiac-protected or body-protected electrical areas
6.2.3 Patient areas signposted as cardiac-protected or body-protected electrical areas
6.2.4 Installation of new socket-outlets in patient areas wired as either body-protected or cardiac-protected
6.2.5 Alterations to electrical installations in patient areas
6.2.5.1 Alterations in cardiac-protected electrical areas
6.2.5.2 Fixed electrical equipment rated at or above 2.0 kW
6.2.5.3 Reclassification of existing cardiac-protected electrical areas as body-protected electrical areas.
6.3 Repairs
6.3.1 Patient areas not wired as cardiac-protected or body-protected electrical areas
6.3.2 Patient areas wired as cardiac-protected or body-protected electrical areas
6.4 Identification
7 Identification of patient areas
7.1 General
7.2 Body-protected electrical area sign
7.3 Cardiac-protected electrical area sign
8 Routine inspection and testing of cardiac-protected and body-protected electrical areas
8.1 General
8.2 Body-protected electrical areas
8.2.1 General
8.2.1.1 Inspection
8.2.1.2 Labelling
8.2.1.3 Socket-outlets
8.2.1.3.1 Colour coding
8.2.1.3.2 Power-available lights
8.2.1.3.3 Maximum number of socket-outlets per LPD
8.2.1.3.4 Power ‘ON’ indicators
8.2.1.4 Switches
8.2.1.5 Wiring
8.2.2 Earthing
8.2.3 Residual current devices (RCDs)
8.2.3.1 General
8.2.3.2 Sensitivity test
8.2.3.3 Maximum tripping time tests
8.2.3.4 Maximum tripping time tests
8.2.3.5 Residual current device (RCD) power-available indicator lights
8.2.3.6 Audible and visible RCD trip indicators
8.2.4 Line isolation monitors (LIMs)
8.2.4.1 Prospective hazard current of the installation
8.2.4.2 Prospective hazard current alarm
8.2.5 Overload monitors
8.2.6 Uninterruptible power supplies (UPSs)
8.2.7 Documentation
8.3 Cardiac-protected electrical areas
8.3.1 General
8.3.1.1 Inspection
8.3.1.2 Labelling
8.3.1.3 Socket-outlets
8.3.1.3.1 Colour coding
8.3.1.3.2 Power-available lights
8.3.1.3.3 Maximum number of socket-outlets per LPD
8.3.1.3.4 Power ‘ON’ indicators
8.3.1.3.5 Switches
8.3.1.3.6 Wiring
8.3.1.3.7 Disposition of socket-outlets protected by RCDs
8.3.2 Earthing
8.3.2.1 Inspection
8.3.2.2 Testing
8.3.3 Residual current devices (RCDs)
8.3.3.1 General
8.3.3.2 Sensitivity test
8.3.3.3 Maximum tripping time tests
8.3.3.4 Maximum tripping time tests
8.3.3.5 RCD power-available indicator lights
8.3.3.6 Audiovisual RCD trip indicators
8.3.4 Line isolation monitors (LIMs)
8.3.4.1 Prospective hazard current of the installation
8.3.4.2 Prospective hazard current alarm
8.3.5 Overload monitors
8.3.6 Uninterruptible power supplies (UPS)
8.3.7 Documentation
Appendix A
A1 Choosing RCD-protected or transformer-isolated supply systems
A2 Deciding on the number and disposition of final sub-circuits
A2.1 Socket-outlets
A2.2 Number of protective devices
A2.2.1 Number of RCDs
A2.2.2 Number of isolation transformers
Appendix B
B1 General
B2 Commissioning inspection checklist for patient areas
B3 Commissioning checklist
Appendix C
Appendix D
D1 General
D2 Examples of resistance calculations
D2.1 General
D2.2 Equipotential earthing system
D2.3 Connections to the EP junction or node
Appendix E
Appendix F
Appendix G
G1 General
G2 Provisions
G3 Testing
G4 Test apparatus and timing
Amendment control sheet
AS 3003:2018
Amendment No. 1 (2019)
Revised text
Cited references in this standard
[Current]
Emergency lighting and exit signs for buildings, Part 1: System design, installation and operation
[Current]
Approval and test specification - General requirements for electrical equipment
[Current]
Electrical installations - Selection of cables, Part 1.1: Cables for alternating voltages up to and including 0.6/1 kV - Typical Australian installation conditions
[Current]
Electrical installations (known as the Australian/New Zealand Wiring Rules)
Content history
[Current]
[Superseded]
[Available Superseded]
DR AS/NZS 3003:2016
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