AS/NZS 3003:2011
Electrical installations - Patient areas
Specifies special requirements for electrical installations in patient areas. These requirements are additional to those specified in AS/NZS 3000 and the New Zealand Electricity Regulations. Applies only to installations (or alterations or additions) made or carried out after the date this Standard is published. However, it is strongly recommended that hospital management carefully evaluate the procedures undertaken within existing installations and take steps to implement the appropriate electrical safety requirements specified herein for areas that are used for cardiac-type procedures or for procedures involving the regular use of medical electrical equipment.
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AS/NZS 3003:2011 ELECTRICAL INSTALLATIONS-PATIENT AREAS
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.4.1 Applied part, Type B
1.4.2 Body-protected electrical area
1.4.3 Body-type procedure
1.4.4 Cardiac-protected electrical area
1.4.5 Cardiac-type procedure
1.4.6 Class I equipment
1.4.7 Class II equipment
1.4.8 Class III equipment
1.4.9 Competent person
1.4.10 Equipotential (EP) junction
1.4.11 Groups of socket-outlets
1.4.12 Leakage protective device (LPD)
1.4.13 Line isolation monitor (LIM)
1.4.14 Medical electrical equipment
1.4.15 Overload monitor
1.4.16 Patient
1.4.17 Patient area
1.4.18 Patient environment
1.4.19 Patient location
1.4.20 Prospective hazard current
1.4.21 Readily accessible
1.4.22 Return earth
1.4.23 Supply, essential (essential supply)
1.4.24 Supply, normal (normal supply)
1.4.25 Supply, uninterruptible (uninterruptible power supply or UPS)
1.4.26 Transformer-isolated supply
SECTION 2 GENERAL REQUIREMENTS FOR BODY-PROTECTED AND CARDIAC-PROTECTED ELECTRICAL AREAS
2.1 GENERAL
2.2 CLASSIFICATION OF PATIENT AREAS
2.2.1 General
2.2.2 Locations required to be wired as cardiac-protected electrical areas
2.2.3 Locations required to be wired as body-protected electrical areas
2.3 SUPPLY OF ELECTRICITY TO PATIENT AREAS-NEW ZEALAND ONLY
2.4 LOW-VOLTAGE A.C. SUPPLIES
2.4.1 Separation of circuits
2.4.2 Protection of wiring systems against mechanical damage
2.4.3 LPD protection required
2.4.4 LPD protection not required
2.4.5 Low-voltage uninterruptible supplies (UPS)
2.5 LOW-VOLTAGE D.C. SUPPLIES
2.6 ACCESS TO CONTROLS AND INDICATORS
2.7 LOW-VOLTAGE SOCKET-OUTLETS
2.7.1 Number of socket-outlets
2.7.2 Socket-outlets that are not readily accessible
2.7.3 Socket-outlets for cleaning equipment
2.7.4 Marking and identification of socket-outlets
2.7.5 Type of socket-outlet
2.8 RESIDUAL CURRENT DEVICES (RCDs)
2.8.1 Type of RCD
2.8.2 Discrimination
2.8.3 Number of poles
2.8.4 Number and disposition of electrical points controlled by RCDs
2.8.5 Indication
2.8.6 Marking
2.8.7 Permanently-wired equipment
2.9 LOW-VOLTAGE ISOLATED SUPPLIES
2.9.1 General
2.9.2 Isolation transformers
2.9.3 Overload monitor
2.9.4 Line isolation monitor
2.9.5 Overcurrent circuit-breaker
2.9.6 System prospective hazard current
2.9.7 Number of socket-outlets
2.9.8 Permanently-wired equipment
2.10 ISOLATION SWITCHES
2.11 EXTRA-LOW-VOLTAGE SUPPLIES
2.11.1 General
2.11.2 Source of extra-low-voltage supply
2.12 MARKING
2.12.1 General
2.12.2 Marking of patient areas
2.13 TESTING AND COMMISSIONING OF ELECTRICAL WORK
2.14 CERTIFICATION
SECTION 3 ADDITIONAL REQUIREMENTS FOR BODY-PROTECTED ELECTRICAL AREAS
3.1 GENERA
3.2 EARTHING
SECTION 4 ADDITIONAL REQUIREMENTS FOR CARDIAC-PROTECTED ELECTRICAL AREAS
4.1 GENERAL
4.2 EARTH-FREE EXTRA-LOW VOLTAGE
4.3 DISPOSITION OF ELECTRICAL POINTS CONTROLLED BY RCDS
4.4 EARTHING AND EQUIPOTENTIAL BONDING
4.4.1 General
4.4.2 Equipotential earthing system
4.4.3 Return earths
SECTION 5 SPECIAL PATIENT AREAS
5.1 GENERAL
5.2 HOME CARE INSTALLATIONS
5.2.1 Compliance with this Standard not required
5.2.2 Compliance with this Standard required
5.2.3 Use of portable RCDs
5.3 INSTALLATION FOR SELF-HARM PATIENTS
5.3.1 General
5.3.2 Marking
SECTION 6 ALTERATIONS, ADDITIONS AND REPAIRS TO ELECTRICAL INSTALLATIONS IN PATIENT AREAS
6.1 INTRODUCTION
6.2 ALTERATIONS AND ADDITIONS
6.2.1 General
6.2.2 Patient areas not wired as cardiac-protected or body-protected electrical areas
6.2.3 Inspection and testing patient areas prior to alteration or addition to electrical installation
6.2.4 Installation of new socket-outlets
6.2.5 Alterations or additions to electrical installations in cardiac-protected electrical areas
6.3 REPAIRS
SECTION 7 MAGNETIC FIELDS
7.1 GENERAL
7.2 REQUIREMENTS
7.3 TESTING
7.4 TEST PROCEDURE
SECTION 8 MARKING OF PATIENT AREAS
8.1 GENERAL
8.2 BODY-PROTECTED ELECTRICAL AREA SIGN
8.3 CARDIAC-PROTECTED ELECTRICAL AREA SIGN
SECTION 9 ROUTINE INSPECTION AND TESTING OF CARDIAC-PROTECTED AND BODY-PROTECTED ELECTRICAL AREAS
9.1 GENERAL
9.2 BODY-PROTECTED ELECTRICAL AREAS
9.2.1 General
9.2.2 Earthing
9.2.3 Residual current devices (RCDs)
9.2.4 Line isolation monitors (LIMs)
9.2.5 Overload monitors
9.2.6 Uninterruptible power supplies (UPSs)
9.2.7 Documentation (report)
9.3 CARDIAC-PROTECTED ELECTRICAL AREAS
9.3.1 General
9.3.2 Earthing
9.3.3 Potential difference between accessible metal equipment
9.3.4 Residual current devices (RCDs)
9.3.5 Line isolation monitors (LIMs)
9.3.6 Overload monitors
9.3.7 Uninterruptible power supplies (UPSs)
9.3.8 Documentation (report)
APPENDIX A - PLANNING OF AREAS AND SELECTING THE RIGHT TYPE OF LPD
A1 CHOOSING RCD-PROTECTED OR TRANSFORMER-ISOLATED SUPPLY SYSTEMS
A1.1 General
A1.2 Summary
A2 DECIDING ON THE NUMBER AND DISPOSITION OF FINAL SUB-CIRCUITS
A2.1 Socket-outlets
A2.2 Number of protective devices
APPENDIX B - COMMISSIONING INSPECTION CHECK LIST
APPENDIX C - RECORDING FORM
APPENDIX D - INSTRUMENT FOR MEASURING POTENTIAL DIFFERENCES IN AN INSTALLATION
D1 GENERAL
D2 MEASURING INSTRUMENT
APPENDIX E - CALCULATIONS FOR EQUIPOTENTIAL EARTHING
E1 REQUIREMENTS OF THE STANDARD
E2 EXAMPLES OF RESISTANCE CALCULATIONS
E2.1 General
E2.2 Equipotential earthing system
E2.3 Connections to the EP junction
APPENDIX F - DOCUMENTATION OF COMPLIANCE TO AS/NZS 3000:2011
F1 GENERAL
F2 FORM
APPENDIX G - ROUTINE INSPECTION REPORT FOR BODY-PROTECTED ELECTRICAL AREA
APPENDIX H - ROUTINE INSPECTION REPORT FOR CARDIAC-PROTECTED ELECTRICAL AREA
Amendments
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Related Information
Electricity (Safety) Regulations 2010
Ministry: WorkSafe New Zealand: Energy Safety
Section: 75(1)
Citation context:The owners and operators of the following installations must ensure that the installations are periodically assessed as set out below, to determine whether they are electrically safe and otherwise comply with these regulations:... ...(f) low voltage and extra-low voltage installations intended for use with electrical medical devices situated— (ii) in any other medical location: AS/NZS 3003
Electricity (Safety) Regulations 2010
Ministry: WorkSafe New Zealand: Energy Safety
Section: Schedule 2
Citation context:AS/NZS 3003 (means) AS/NZS 3003:2003: Electrical installations—Patient areas of hospitals, medical and dental practices and dialyzing locations
Electricity (Safety) Regulations 2010
Ministry: WorkSafe New Zealand: Energy Safety
Section: 25
Citation context:Despite anything in these regulations, the following installations, fittings, and appliances are deemed to be electrically safe if they comply with the standards indicated and are used in accordance with those standards: (a) installations, fittings, and appliances in medical locations:... ...AS/NZS 3003, ...
Electricity (Safety) Regulations 2010
Ministry: WorkSafe New Zealand: Energy Safety
Section: 60(2)
Citation context:A person who installs any of the following must ensure that the installation complies with Part 2 of AS/NZS 3000 and also with the standard indicated: (a) an installation intended for use with electrical medical devices: AS/NZS 3003...
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AS/NZS 3003:2011 ELECTRICAL INSTALLATIONS-PATIENT AREAS
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.4.1 Applied part, Type B
1.4.2 Body-protected electrical area
1.4.3 Body-type procedure
1.4.4 Cardiac-protected electrical area
1.4.5 Cardiac-type procedure
1.4.6 Class I equipment
1.4.7 Class II equipment
1.4.8 Class III equipment
1.4.9 Competent person
1.4.10 Equipotential (EP) junction
1.4.11 Groups of socket-outlets
1.4.12 Leakage protective device (LPD)
1.4.13 Line isolation monitor (LIM)
1.4.14 Medical electrical equipment
1.4.15 Overload monitor
1.4.16 Patient
1.4.17 Patient area
1.4.18 Patient environment
1.4.19 Patient location
1.4.20 Prospective hazard current
1.4.21 Readily accessible
1.4.22 Return earth
1.4.23 Supply, essential (essential supply)
1.4.24 Supply, normal (normal supply)
1.4.25 Supply, uninterruptible (uninterruptible power supply or UPS)
1.4.26 Transformer-isolated supply
SECTION 2 GENERAL REQUIREMENTS FOR BODY-PROTECTED AND CARDIAC-PROTECTED ELECTRICAL AREAS
2.1 GENERAL
2.2 CLASSIFICATION OF PATIENT AREAS
2.2.1 General
2.2.2 Locations required to be wired as cardiac-protected electrical areas
2.2.3 Locations required to be wired as body-protected electrical areas
2.3 SUPPLY OF ELECTRICITY TO PATIENT AREAS-NEW ZEALAND ONLY
2.4 LOW-VOLTAGE A.C. SUPPLIES
2.4.1 Separation of circuits
2.4.2 Protection of wiring systems against mechanical damage
2.4.3 LPD protection required
2.4.4 LPD protection not required
2.4.5 Low-voltage uninterruptible supplies (UPS)
2.5 LOW-VOLTAGE D.C. SUPPLIES
2.6 ACCESS TO CONTROLS AND INDICATORS
2.7 LOW-VOLTAGE SOCKET-OUTLETS
2.7.1 Number of socket-outlets
2.7.2 Socket-outlets that are not readily accessible
2.7.3 Socket-outlets for cleaning equipment
2.7.4 Marking and identification of socket-outlets
2.7.5 Type of socket-outlet
2.8 RESIDUAL CURRENT DEVICES (RCDs)
2.8.1 Type of RCD
2.8.2 Discrimination
2.8.3 Number of poles
2.8.4 Number and disposition of electrical points controlled by RCDs
2.8.5 Indication
2.8.6 Marking
2.8.7 Permanently-wired equipment
2.9 LOW-VOLTAGE ISOLATED SUPPLIES
2.9.1 General
2.9.2 Isolation transformers
2.9.3 Overload monitor
2.9.4 Line isolation monitor
2.9.5 Overcurrent circuit-breaker
2.9.6 System prospective hazard current
2.9.7 Number of socket-outlets
2.9.8 Permanently-wired equipment
2.10 ISOLATION SWITCHES
2.11 EXTRA-LOW-VOLTAGE SUPPLIES
2.11.1 General
2.11.2 Source of extra-low-voltage supply
2.12 MARKING
2.12.1 General
2.12.2 Marking of patient areas
2.13 TESTING AND COMMISSIONING OF ELECTRICAL WORK
2.14 CERTIFICATION
SECTION 3 ADDITIONAL REQUIREMENTS FOR BODY-PROTECTED ELECTRICAL AREAS
3.1 GENERA
3.2 EARTHING
SECTION 4 ADDITIONAL REQUIREMENTS FOR CARDIAC-PROTECTED ELECTRICAL AREAS
4.1 GENERAL
4.2 EARTH-FREE EXTRA-LOW VOLTAGE
4.3 DISPOSITION OF ELECTRICAL POINTS CONTROLLED BY RCDS
4.4 EARTHING AND EQUIPOTENTIAL BONDING
4.4.1 General
4.4.2 Equipotential earthing system
4.4.3 Return earths
SECTION 5 SPECIAL PATIENT AREAS
5.1 GENERAL
5.2 HOME CARE INSTALLATIONS
5.2.1 Compliance with this Standard not required
5.2.2 Compliance with this Standard required
5.2.3 Use of portable RCDs
5.3 INSTALLATION FOR SELF-HARM PATIENTS
5.3.1 General
5.3.2 Marking
SECTION 6 ALTERATIONS, ADDITIONS AND REPAIRS TO ELECTRICAL INSTALLATIONS IN PATIENT AREAS
6.1 INTRODUCTION
6.2 ALTERATIONS AND ADDITIONS
6.2.1 General
6.2.2 Patient areas not wired as cardiac-protected or body-protected electrical areas
6.2.3 Inspection and testing patient areas prior to alteration or addition to electrical installation
6.2.4 Installation of new socket-outlets
6.2.5 Alterations or additions to electrical installations in cardiac-protected electrical areas
6.3 REPAIRS
SECTION 7 MAGNETIC FIELDS
7.1 GENERAL
7.2 REQUIREMENTS
7.3 TESTING
7.4 TEST PROCEDURE
SECTION 8 MARKING OF PATIENT AREAS
8.1 GENERAL
8.2 BODY-PROTECTED ELECTRICAL AREA SIGN
8.3 CARDIAC-PROTECTED ELECTRICAL AREA SIGN
SECTION 9 ROUTINE INSPECTION AND TESTING OF CARDIAC-PROTECTED AND BODY-PROTECTED ELECTRICAL AREAS
9.1 GENERAL
9.2 BODY-PROTECTED ELECTRICAL AREAS
9.2.1 General
9.2.2 Earthing
9.2.3 Residual current devices (RCDs)
9.2.4 Line isolation monitors (LIMs)
9.2.5 Overload monitors
9.2.6 Uninterruptible power supplies (UPSs)
9.2.7 Documentation (report)
9.3 CARDIAC-PROTECTED ELECTRICAL AREAS
9.3.1 General
9.3.2 Earthing
9.3.3 Potential difference between accessible metal equipment
9.3.4 Residual current devices (RCDs)
9.3.5 Line isolation monitors (LIMs)
9.3.6 Overload monitors
9.3.7 Uninterruptible power supplies (UPSs)
9.3.8 Documentation (report)
APPENDIX A - PLANNING OF AREAS AND SELECTING THE RIGHT TYPE OF LPD
A1 CHOOSING RCD-PROTECTED OR TRANSFORMER-ISOLATED SUPPLY SYSTEMS
A1.1 General
A1.2 Summary
A2 DECIDING ON THE NUMBER AND DISPOSITION OF FINAL SUB-CIRCUITS
A2.1 Socket-outlets
A2.2 Number of protective devices
APPENDIX B - COMMISSIONING INSPECTION CHECK LIST
APPENDIX C - RECORDING FORM
APPENDIX D - INSTRUMENT FOR MEASURING POTENTIAL DIFFERENCES IN AN INSTALLATION
D1 GENERAL
D2 MEASURING INSTRUMENT
APPENDIX E - CALCULATIONS FOR EQUIPOTENTIAL EARTHING
E1 REQUIREMENTS OF THE STANDARD
E2 EXAMPLES OF RESISTANCE CALCULATIONS
E2.1 General
E2.2 Equipotential earthing system
E2.3 Connections to the EP junction
APPENDIX F - DOCUMENTATION OF COMPLIANCE TO AS/NZS 3000:2011
F1 GENERAL
F2 FORM
APPENDIX G - ROUTINE INSPECTION REPORT FOR BODY-PROTECTED ELECTRICAL AREA
APPENDIX H - ROUTINE INSPECTION REPORT FOR CARDIAC-PROTECTED ELECTRICAL AREA
Amendments
Previous versions
AS/NZS 3003:2011
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.