1 - AS/NZS 3003:2003 ELECTRICAL INSTALLATIONS - PATIENT AREAS OF HOSPITALS, MEDICAL AND DENTAL PRACTICES AND DIALYZING LOCATIONS
4 - PREFACE
6 - CONTENTS
9 - 1 SCOPE AND GENERAL
9 - 1.1 Scope
9 - 1.2 Application
10 - 1.3 Referenced documents
11 - 1.4 Definitions
11 - 1.4.1 Applied part,Type B
12 - 1.4.2 Body-protected electrical area
12 - 1.4.3 Body-type procedure
12 - 1.4.4 Cardiac-protected electrical area
13 - 1.4.5 Cardiac-type procedure
13 - 1.4.6 Class I equipment
13 - 1.4.7 Class II equipment
13 - 1.4.8 Class III equipment
13 - 1.4.9 Equipotential (EP)junction
13 - 1.4.10 Equipotential (EP)terminal
14 - 1.4.11 Leakage protective device (LPD)
14 - 1.4.12 Line isolation monitor (LIM)
14 - 1.4.13 Medical electrical equipment
14 - 1.4.14 Overload monitor
14 - 1.4.15 Patient
14 - 1.4.16 Patient area
15 - 1.4.17 Patient environment
15 - 1.4.18 Patient location
16 - 1.4.19 Prospective hazard current
16 - 1.4.20 Return earth
16 - 1.4.21 Supply,essential (essential supply)
16 - 1.4.22 Supply,normal (normal supply)
16 - 1.4.23 Supply,uninterruptible (uninterruptible supply or UPS)
16 - 1.4.24 Transformer-isolated supply
17 - 2 GENERAL REQUIREMENTS FOR BODY-PROTECTED AND CARDIAC- PROTECTED ELECTRICAL AREAS
17 - 2.1 General
17 - 2.2 Supply of electricity to patient areas New Zealand only
17 - 2.3 Low-voltage a.c.supplies
17 - 2.3.1 Protection of wiring systems against mechanical damage
17 - 2.3.2 LPD protection required
18 - 2.3.3 LPD protection not required
18 - 2.3.4 Low-voltage uninterruptible supplies (UPS)
19 - 2.4 Low-voltage d.c.supplies
20 - 2.5 Access to controls and indicators
20 - 2.6 Low-voltage socket-outlets
20 - 2.6.1 Number of socket-outlets
20 - 2.6.2 Marking and protection of socket-outlets for cleaning purposes
20 - 2.6.3 Marking and identification of socket-outlets
21 - 2.6.4 Type of socket-outlet
21 - 2.7 Residual current devices (RCDs)
21 - 2.7.1 General
22 - 2.7.2 Number of poles
22 - 2.7.3 Number and disposition of points controlled by RCDs
22 - 2.7.4 Indication
22 - 2.7.5 Marking
22 - 2.7.6 Permanently-wired equipment
23 - 2.8 Low-voltage isolated supplies
23 - 2.8.1 General
23 - 2.8.2 Isolation transformers
23 - 2.8.3 Overload monitor
23 - 2.8.4 Line isolation monitor
23 - 2.8.5 Overcurrent circuit-breaker
24 - 2.8.6 System prospective hazard current
24 - 2.8.7 Number of socket-outlets
24 - 2.8.8 Permanently-wired equipment
24 - 2.9 Isolation switches
25 - 2.10 Marking
25 - 2.10.1 General
25 - 2.10.2 Marking of patient areas
25 - 2.11 Commissioning
25 - 2.12 Inspection and documentation New Zealand only
26 - 3 ADDITIONAL REQUIREMENTS FOR BODY-PROTECTED ELECTRICAL AREAS
26 - 3.1 General
26 - 3.2 Earthing
26 - 3.3 Home dialysis installations
27 - 4 ADDITIONAL REQUIREMENTS FOR CARDIAC-PROTECTED ELECTRICAL AREAS
27 - 4.1 General
27 - 4.2 Extra-low-voltage supplies
27 - 4.2.1 General
27 - 4.2.2 Source of extra-low-voltage supply
27 - 4.2.3 Earth-free
27 - 4.2.4 Batteries
27 - 4.3 Disposition of points controlled by RCDs
27 - 4.4 Earthing and equipotential bonding
27 - 4.4.1 General
28 - 4.4.2 Equipotential earthing system
31 - 4.4.3 Return earths
31 - 4.4.4 Equipotential terminal (EP terminal)
37 - APPENDIX A - RATIONALE FOR THE REQUIREMENTS OF THIS STANDARD
37 - A1 Section 1 General and scope
37 - A2 Section 2 General requirements for patient areas
37 - A2.1 General
37 - A2.2 Electricity supply
37 - A2.3 and A2.4 LPD protection and supply wiring
37 - A2.5 Access to protective devices
38 - A2.6 Socket-outlets
38 - A2.7 Residual current devices (RCD)
39 - A2.8 Low-voltage isolated supplies
40 - A2.9 Isolation switches
40 - A2.10 Marking
40 - A2.11 Commissioning
40 - A3 Section 3 Additional requirements for body-protected electrical areas
40 - A3.1 General
40 - A3.2 Earthing
40 - A3.3 Home dialysis installations
40 - A4 Section 4 Additional requirements for cardiac-protected electrical areas
40 - A4.1 General
40 - A4.2 Extra-low-voltage supplies
41 - A4.3 Disposition of points controlled by RCDs
41 - A4.4 Earthing
42 - APPENDIX B - PLANNING OF AREAS
42 - B1 Choosing RCD-protected or isolation-protected supply systems
42 - B1.1 General
42 - B1.2 Summary
43 - B2 Deciding on the number and disposition of final subcircuits
43 - B2.1 Socket-outlets
43 - B2.2 Number of protective devices
44 - APPENDIX C - MARKING OF PATIENT AREAS
44 - C1 General
44 - C2 Body-protected electrical area sign
44 - C3 Cardiac-protected electrical area sign
45 - APPENDIX D - COMMISSIONING FOR PATIENT AREAS
45 - D1 Commissioning inspection check list
51 - D2 Testing
51 - D3 Documentation
52 - APPENDIX E - SAMPLE RECORDING FORMS
56 - APPENDIX F - MEASURES FOR AVOIDING INTERFERENCE FROM MAGNETIC FIELDS
56 - F1 General
56 - F2 Location of equipment
56 - F3 Underfloor heating
57 - APPENDIX G - METHOD FOR MEASURING MAGNETIC FIELDS
59 - APPENDIX H - INSTRUMENT FOR MEASURING POTENTIAL DIFFERENCES IN AN INSTALLATION
61 - APPENDIX I - CALCULATIONS FOR EQUIPOTENTIAL EARTHING
61 - I1 Requirements of the Standard
61 - I2 Examples of resistance calculations
61 - I2.1 General
61 - I2.2 Equipotential earthing system
61 - I2.3 Connections to the EP junction
63 - APPENDIX J - ALTERATIONS TO EQUIPOTENTIAL EARTHING SYSTEMS IN EXISTING INSTALLATIONS
63 - J1 General
63 - J2
64 - J3