AS/NZS 3018:1997

1 - AS/NZS 3018:1997 ELECTRICAL INSTALLATIONS-DOMESTIC INSTALLATIONS
4 - PREFACE
6 - CONTENTS
11 - SECTION 1 SCOPE AND GENERAL
11 - 1.1 SCOPE
11 - 1.2 APPLICATION
12 - 1.3 REFERENCED DOCUMENTS
13 - 1.4 OTHER REQUIREMENTS
13 - 1.5 DEFINITIONS
13 - 1.6 ARRANGEMENT
15 - SECTION 2 SUPPLY AUTHORITY REQUIREMENTS
15 - 2.1 GENERAL
15 - 2.2 METHODS OF SUPPLY
15 - 2.2.1 General
15 - 2.2.2 Overhead supply
15 - 2.2.3 Underground supply
16 - 2.3 METERING EQUIPMENT
23 - SECTION 3 CONSUMERS MAINS
23 - 3.1 GENERAL
23 - 3.2 CABLE TYPES
23 - 3.3 ASSUMED CONDITIONS
23 - 3.3.1 Grouping
23 - 3.3.2 Installation conditions
23 - 3.3.3 Voltage drop
24 - 3.3.4 Ambient temperature
24 - 3.3.5 Unprotected consumers mains
24 - 3.4 IDENTIFICATION
24 - 3.5 MINIMUM CURRENT CARRYING CAPACITY
27 - 3.6 MAXIMUM DEMAND
27 - 3.6.1 General
27 - 3.6.2 Limitation of maximum demand by circuit-breaker
27 - 3.7 CABLE SELECTION
31 - SECTION 4 SWITCHBOARDS AND SWITCHGEAR
31 - 4.1 GENERAL
31 - 4.2 SWITCHBOARDS
31 - 4.2.1 Construction
31 - 4.2.2 Location
42 - 4.2.3 Wiring
42 - 4.2.4 Marking
42 - 4.3 MAIN SWITCHES
42 - 4.3.1 Control
42 - 4.3.2 Minimum current rating
42 - 4.3.3 Identification of main switches
43 - 4.4 CIRCUIT PROTECTIVE DEVICES
43 - 4.4.1 General
43 - 4.4.2 Overcurrent protection
43 - 4.4.3 Earth leakage current protection
43 - 4.4.4 Orientation of circuit protective devices
44 - SECTION 5 EARTHING AND EQUIPOTENTIAL BONDING
44 - 5.1 GENERAL
44 - 5.2 EARTH ELECTRODE
44 - 5.3 MAIN EARTHING CONDUCTORS
44 - 5.4 MEN CONNECTION
45 - 5.5 PROTECTIVE EARTHING CONDUCTORS
45 - 5.6 EQUIPOTENTIAL BONDING CONDUCTORS
45 - 5.7 INSTALLATION
50 - SECTION 6 CIRCUIT WIRING
50 - 6.1 GENERAL
50 - 6.2 TYPE
50 - 6.3 INSTALLATION METHODS
50 - 6.3.1 General
51 - 6.3.2 Underground wiring
51 - 6.4 BULK THERMAL INSULATION
51 - 6.4.1 Effect of bulk thermal insulation
51 - 6.4.2 Completely surrounded by thermal insulation
52 - 6.4.3 Partially surrounded by thermal insulation
52 - 6.4.4 Materials
52 - 6.5 DISTINGUISHING COLOURS OF CABLES
52 - 6.6 FINAL SUBCIRCUITS
52 - 6.6.1 Minimum conductor size
52 - 6.6.2 Number of final subcircuits for GPOs
53 - 6.6.3 Separate final subcircuits required
53 - 6.6.4 Maximum number of points per single purpose final subcircuit
53 - 6.6.5 Maximum number of points per mixed final subcircuit
53 - 6.6.6 RCD protection
53 - 6.6.7 Voltage drop
54 - 6.7 NON-METALLIC CONDUIT
58 - SECTION 7 ACCESSORIES AND EQUIPMENT
58 - 7.1 GENERAL
58 - 7.2 PREVENTION OF CONTACT BETWEEN LIVE PARTS AND CONDUCTIVE BUILDING MATERIALS
58 - 7.3 SWITCHES AND CEILING ROSES
58 - 7.4 MOUNTING OF ACCESSORIES
58 - 7.5 ACCESS TO EQUIPMENT IN ENCLOSED OR RESTRICTED SPACES 7.5.1 General
58 - 7.5.1 General
58 - 7.5.2 Bodily access
59 - 7.5.3 Below floors
59 - 7.6 LAMPS AND LUMINAIRES NEAR THERMAL INSULATING MATERIAL
59 - 7.7 SOCKET-OUTLETS
59 - 7.7.1 Mounting
59 - 7.7.2 Polarization
59 - 7.8 CONNECTION OF FIXED AND STATIONARY APPLIANCES
60 - 7.9 ROOM HEATERS AND ELECTRIC HEATING CABLE SYSTEMS
60 - 7.9.1 General
60 - 7.9.2 Control switch
60 - 7.9.3 Marking of an electric heating cable system
61 - 7.10 WATER HEATERS
61 - 7.11 DAMP SITUATIONS
61 - 7.11.1 Accessories -Common requirements in all damp situations
61 - 7.11.2 Fixed appliances-Common requirements in all damp situations
61 - 7.11.3 Restricted zones near baths, showers and other fixed water containers
62 - 7.11.4 Socket-outlets
70 - 7.11.5 Switches
70 - 7.11.6 Lampholders and luminaires
72 - SECTION 8 SWIMMING AND SPA POOLS
72 - 8.1 GENERAL
72 - 8.2 DEFINITIONS
73 - 8.3 WIRING SYSTEMS
73 - 8.3.1 General
73 - 8.3.2 Underground wiring
75 - 8.3.3 Joints incables
75 - 8.3.4 Flexible cords
75 - 8.3.5 Wiring systems above the pool zone
75 - 8.4 ACCESSORIES
75 - 8.4.1 Enclosure requirements
75 - 8.4.2 Socket-outlets installed for the connection of pool equipment
76 - 8.4.3 Other socket-outlets
76 - 8.4.4 Additional requirements for New Zealand
76 - 8.5 APPLIANCES
76 - 8.5.1 Construction
77 - 8.5.2 Supply
78 - 8.6 LUMINAIRES
78 - 8.6.1 Underwater luminaires
78 - 8.6.2 Luminaires and lampholders installed within or above the pool zone
79 - 8.7 EARTHING AND BONDING
79 - 8.7.1 Elimination of voltage gradients
79 - 8.7.2 Equipotential bonding
80 - 8.7.3 Earthing and bonding conductors
81 - SECTION 9 TESTING
81 - 9.1 GENERAL
81 - 9.2 REQUIRED TESTS
82 - 9.3 RESISTANCE OF THE EARTHING SYSTEM
82 - 9.4 RESISTANCE OF EQUIPOTENTIAL BONDING SYSTEMS
82 - 9.5 REQUIRED CHECKS AND TESTS
83 - APPENDIX A - DEFINITIONS
83 - A1 DEFINITIONS AND NOMENCLATURE
83 - A1.1 General
83 - A1.2 Accessible, readily
83 - A1.3 Accessory
83 - A1.4 Active (or active conductor)
83 - A1.5 Aerial conductor
83 - A1.6 Aerial conductor, insulated
84 - A1.7 Appliance
84 - A1.8 Appliance, fixed
84 - A1.9 Appliance, portable
84 - A1.10 Appliance, stationary
84 - A1.11 Cable
84 - A1.12 Cable core
84 - A1.13 Cable, flexible
84 - A1.14 Cable, sheathed
84 - A1.15 Circuit-breaker
84 - A1.16 Conductor
84 - A1.17 Consumers mains
84 - A1.18 Consumers terminals (point of supply)
85 - A1.19 Cord, flexible
85 - A1.20 Current, overload
85 - A1.21 Current, short-circuit
85 - A1.22 Damp situation
85 - A1.23 Earthed
85 - A1.24 Earthed situation
86 - A1.25 Earthing conductor
86 - A1.26 Earthing system
86 - A1.27 Enclosure
86 - A1.28 Equipment
86 - A1.29 Exposed metal
87 - A1.30 Installation
87 - A1.31 Installation, domestic
87 - A1.32 Insulated
87 - A1.33 Insulation, double
88 - A1.34 Lampholder, all-insulated
88 - A1.35 Live
88 - A1.36 Luminaire (lighting fitting)
88 - A1.37 Multiphase
88 - A1.38 Multiple earthed neutral (MEN) system
88 - A1.39 Neutral (neutral conductor or mid-wire)
88 - A1.40 Non-hygroscopic
88 - A1.41 Outlet, general purpose (GPO)
89 - A1.42 Overcurrent
89 - A1.43 Plug
89 - A1.44 Point (in wiring)
89 - A1.45 Point of attachment
89 - A1.46 Point of entry
89 - A1.47 Residual current device (RCD)
89 - A1.48 Service protection device
89 - A1.49 Service line
90 - A1.50 Service cable, underground
90 - A1.51 Socket-outlet
90 - A1.52 Subcircuit, final
90 - A1.53 Submains
90 - A1.54 Supply authority
90 - A1.55 Switchboard
90 - A1.56 Switchboard, main
91 - A1.57 Switchgear, self-contained
91 - A1.58 Switch, multipole
91 - A1.59 Switch, single-pole
91 - A1.60 Track system
91 - A1.61 Voltage
91 - A1.62 Wiring enclosure
91 - A1.63 Wiring, fixed
91 - A1.64 Wiring, underground
92 - APPENDIX B - TYPICAL MAXIMUM DEMAND CALCULATIONS
95 - APPENDIX C - MIXED FINAL SUBCIRCUIT
95 - C1 NUMBER OF POINTS PER FINAL SUBCIRCUIT
95 - C2 SAMPLE CALCULATION
98 - INDEX

Specifies requirements for the installation of electrical equipment and the testing of the completed installation in single domestic premises. The requirements and methods are consistent with AS 3000 and reflect common practices. Installations carried out in accordance with these requirements are considered as complying with AS 3000. A number of illustrations have been included to clarify the requirements.

This Standard sets out acceptable methods for electricalinstallations in single domestic premises, based on the requirements ofAS 3000 or the New Zealand Electricity Regulations (ER 1993).NOTE: AS 3000 is referred to throughout this Standard. Where these referencesoccur they are to be taken to refer also to ER 1993 for New Zealand.

First published as AS/NZS 3018:1997.