Standard
Track updates
AS/NZS 3017:2022
[Current]Electrical installations - Verification by inspection and testing
Specifies inspection and test methods to demonstrate that low voltage electrical installations comply with safety requirements for the prevention of fire, and to prevent a person or livestock from sustaining an electric shock. Covers electrical installations connected to an MEN system of earthing.
Published: 02/12/2022
Pages: 96
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Introduction
1 Scope and general
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Terms and definitions
1.5 Safety
1.5.1 General
1.5.2 Work health and safety
2 Test equipment
2.1 Equipment required
2.2 Selection of test equipment
2.2.1 Equipment requirements
2.2.1.1 General
2.2.1.2 Meter error
2.2.1.3 Voltage ratings
2.2.1.4 Safe selection and use
2.2.2 Requirements for specific types of test equipment
2.2.2.1 Voltage indicator
2.2.2.2 Low range ohmmeter
2.2.2.3 Instrument for measuring insulation resistance
2.2.2.4 Instrument for measuring fault-loop impedance
2.2.2.5 Equipment for confirming correct operation of RCDs
2.2.2.6 Portable independent source providing 50 Hz supply
2.2.2.7 Test leads and probes
2.2.2.8 Trailing lead
2.2.2.9 Means of making temporary connection to mass of earth
2.2.2.10 Resistors
2.3 Test equipment checks
2.3.1 Basic functional checks before each use
2.3.2 Periodic checks of accuracy
2.3.3 Calibration
3 Visual inspection
3.1 General
3.2 Safety requirements — Before visual inspection
3.3 Check list
4 Testing installations
4.1 General requirements
4.2 Verification tests
4.2.1 Sequence of tests
4.2.2 Test failures
4.3 Test for de-energized
4.3.1 General
4.3.2 Considerations
4.3.3 Requirements
4.3.4 Results
4.3.5 Test procedure — Confirming isolation
4.3.5.1 Preparation
4.3.5.2 Testing for de-energized
4.3.5.3 Isolation
4.4 Earth continuity and resistance
4.4.1 General
4.4.2 Considerations
4.4.3 Requirements
4.4.4 Results
4.4.5 Procedures
4.4.5.1 Figures
4.4.5.2 Main earthing conductor
4.4.5.3 Protective earthing and equipotential bonding conductors
4.5 Insulation resistance
4.5.1 General
4.5.2 Considerations
4.5.3 Requirements
4.5.3.1 Preparation
4.5.3.2 Testing
4.5.4 Results
4.5.5 Procedures
4.5.5.1 Figures
4.5.5.2 Insulation resistance test of consumer mains
4.5.5.3 Insulation resistance test of each individual final subcircuits
4.6 Polarity and correct circuit connections
4.6.1 General
4.6.2 Considerations
4.6.3 Requirements
4.6.4 Results
4.6.5 Procedures
4.6.5.1 General
4.6.5.2 Polarity test — Consumer mains
4.6.5.3 Polarity test — Submains method 1
4.6.5.4 Polarity test — Submains method 2
4.6.5.5 Polarity test of submains for separate MEN installation in outbuilding
4.6.5.6 Polarity test of a switch using ohmmeter
4.6.5.7 Preparation for a polarity test of an energized submain
4.6.5.8 Testing polarity of energized submains to an outbuilding with MEN connection
4.6.5.9 Polarity test of energized submains incorporating protective earthing conductor
4.6.5.10 Polarity test of energized switch or socket outlet
4.6.5.11 Polarity and circuit connections test of lighting points using resistors
4.6.5.12 Polarity test of socket-outlet subcircuits using resistors
4.6.5.13 Polarity test of points supplying appliances
4.6.5.14 Interconnection test between conductors of different circuits
4.7 Test of phase sequence of multi-phase socket outlets
4.7.1 General
4.7.2 Considerations
4.7.3 Requirements
4.7.4 Results
4.7.5 Procedures
4.7.5.1 Figures
4.7.5.2 Phase sequence check continuity method for socket outlets (circuit isolated)
4.7.5.3 Phase sequence check for socket outlets — resistor method; (circuit isolated)
4.7.5.4 Phase sequence check for socket outlets — Using a phase rotation test instrument (circuit energized)
4.8 Earth fault-loop impedance
4.8.1 General
4.8.2 Considerations
4.8.2.1 EFLI testing considerations
4.8.2.2 Supply energized
4.8.2.3 Supply isolated
4.8.3 Requirements
4.8.3.1 General
4.8.3.2 Supply available
4.8.3.3 No supply available
4.8.4 Results
4.8.4.1 Testing energized circuit
4.8.4.2 Testing isolated circuit
4.8.5 Procedures
4.8.5.1 Circuit energized
4.8.5.2 Supply not available
4.9 Confirming function of residual current devices
4.9.1 General
4.9.2 Considerations
4.9.3 Requirements
4.9.3.1 Mandatory tests
4.9.4 Results
4.9.5 Procedures
4.9.5.1 General
4.9.5.2 Confirming correct connection to supply
4.9.5.3 Confirming operation of RCD and disconnection of protected circuit(s)
4.10 Measuring resistance of earth electrode to general mass of earth
4.10.1 General
4.10.2 Electrode testing
4.10.2.1 Method A − EFLI meter method (installation energized)
4.10.2.2 Method B — Fall of potential
4.10.2.3 Method C — Clamp meter
4.11 Measuring touch voltage
4.11.1 General
4.11.2 Considerations
4.11.3 Results
4.11.4 Procedure
4.12 Test for integrity of the incoming neutral
4.12.1 General
4.12.2 Considerations
4.12.3 Requirements
4.12.4 Results
4.12.5 Procedures
4.12.5.1 Test using an earth fault-loop impedance meter − Installation energized
4.12.5.2 Test using a clamp type ammeter − Installation energized
4.12.5.3 Test using a volt meter
5 Installation test records
Appendix A
A.1 General
A.2 Test equipment
A.2.1 General specifications
A.2.1.1 General
A.2.1.2 Instruments for use on energized circuits
A.2.1.3 Meter accuracy
A.2.2 Voltage devices
A.2.2.1 Voltage indicators
A.2.2.2 Voltmeters
A.2.3 Low range ohmmeter
A.2.3.1 Accuracy
A.2.3.2 Analogue meter
A.2.3.3 Digital meter
A.2.4 Device for initiating operation of RCDs
A.2.5 Independent source providing 50 Hz supply
A.2.5.1 Features
A.2.5.2 Connections and use
A.2.6 Test leads and probes
A.2.7 Resistors used in tests where supply isolated
A.3 Maintaining test equipment
A.3.1 Basic checks of equipment function
A.3.1.1 General
A.3.1.2 Voltage indicators
A.3.1.3 Ohmmeter
A.3.1.4 Insulation resistance test instrument
A.3.1.5 Trailing lead
A.3.2 Periodic checks of correct equipment function
A.3.2.1 General
A.3.2.2 Ohmmeters
A.3.2.3 Insulation resistance test instrument
A.3.2.4 EFLI meter
A.3.2.4.1 Test using known resistance
A.3.2.4.2 Test using known circuit
A.3.2.5 RCD initiation device
A.3.2.6 Portable independent source
A.3.2.7 Trailing lead
A.4 Record of checks of accuracy
Appendix B
Bibliography
Cited references in this standard
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