AS 1284.1-2004

1 - AS 1284.1-2004 ELECTRICITY METERING - GENERAL PURPOSE INDUCTION WATTHOUR METERS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 APPLICATION
6 - 1.3 REFERENCED DOCUMENTS
6 - 1.4 DEFINITIONS
6 - 1.4.1 Definitions related to the meter
7 - 1.4.2 Definitions related to components
8 - 1.4.3 Characteristic terms
9 - 1.4.4 Rated values
9 - 1.4.5 Reference conditions
9 - 1.4.6 Tests
9 - 1.5 CONDITIONS FOR OPERATION IN SERVICE
10 - SECTION 2 CONSTRUCTIONAL REQUIREMENTS
10 - 2.1 GENERAL
10 - 2.2 CASE AND TERMINAL COVER
10 - 2.2.1 Mechanical strength
10 - 2.2.2 Ignitability and combustion propagation
10 - 2.2.3 Entry of objects, dust and moisture
12 - 2.2.4 Visibility of internal parts
12 - 2.2.5 Fixing screws (bottom-connected meter)
12 - 2.3 DIMENSIONS
13 - 2.4 SECURITY SEALING
13 - 2.5 TERMINATIONS (BOTTOM-CONNECTED METERS)
13 - 2.5.1 Terminals
13 - 2.5.2 Clearance and creepage distances
13 - 2.5.3 Protection against short-circuit
13 - 2.6 DISCONNECTING DEVICES
14 - 2.7 REGISTER
14 - 2.7.1 General
14 - 2.7.2 Multi-rate register
14 - 2.8 ROTOR
14 - 2.8.1 Magnetic flotation
14 - 2.8.2 Disc clearances
15 - 2.8.3 Direction of rotation
15 - 2.8.4 Disc markings
16 - SECTION 3 ELECTRICAL REQUIREMENTS
16 - 3.1 STANDARD VALUES
16 - 3.2 STANDARD VOLTAGE RATINGS
16 - 3.3 STANDARD CURRENT RATINGS (IbŒImax)
16 - 3.4 VOLTAGE AND CURRENT CIRCUIT PARAMETERS
16 - 3.4.1 Burden of voltage circuit intended for operation from a voltage transformer
16 - 3.4.2 Burden of current circuit (CT-operated meter)
17 - 3.4.3 Power loss in register changeover device
17 - 3.5 TEMPERATURE LIMITS
17 - 3.5.1 Temperature limits for electrical insulation
17 - 3.5.2 Temperature limits for terminals
17 - 3.5.3 Test conditions
17 - 3.6 CONNECTION
19 - 3.7 DIELECTRIC PROPERTIES
19 - 3.7.1 General
19 - 3.7.2 Insulation of internal parts
19 - 3.7.3 Double insulation
19 - 3.7.4 Lightning-impulse withstand test
21 - SECTION 4 PERFORMANCE REQUIREMENTS
21 - 4.1 REFERENCE CONDITIONS
21 - 4.2 LIMITS OF ERROR
21 - 4.2.1 Meter constant
21 - 4.2.2 Register test
22 - 4.2.3 Load range errors
22 - 4.2.4 Interpretation of test results
22 - 4.3 EFFECT OF INFLUENCE QUANTITIES
22 - 4.3.1 General
22 - 4.3.2 Effect of change of ambient temperature
23 - 4.3.3 Effect of change of voltage
23 - 4.3.4 Effect of change of frequency
23 - 4.3.5 Effect of current waveform distortion
23 - 4.3.6 Effect of tilt
24 - 4.3.7 Effect of current coil self-heating
24 - 4.3.8 Effect of external magnetic field
24 - 4.3.9 Effect of reversed-phase sequence (three-element meter)
24 - 4.3.10 Effect of alternative usage and phase reversal (two-element meter)
25 - 4.3.11 Effect of register friction
25 - 4.3.12 Effect of short-time overcurrent
25 - 4.3.13 Effect of shock
26 - 4.3.14 Effect of high temperature
27 - 4.3.15 Effect of register changeover device
27 - 4.4 STARTING
27 - 4.5 RUNNING WITH NO LOAD
28 - SECTION 5 MARKING
28 - 5.1 NAMEPLATE
28 - 5.2 DURABILITY OF MARKING
28 - 5.3 DIAGRAMS OF CONNECTIONS
29 - SECTION 6 DETERMINATION OF COMPLIANCE
29 - 6.1 TYPE TESTS
29 - 6.2 ROUTINE TESTS
31 - APPENDIX A - INFORMATION TO BE SUPPLIED WITH ENQUIRY AND ORDER
32 - APPENDIX B - LIST OF REFERENCED DOCUMENTS
33 - APPENDIX C - NOISE LEVEL TESTING OF METERS
33 - C1 SCOPE
33 - C2 TEST APPARATUS
33 - C3 PROCEDURE
33 - C4 REPORT
34 - APPENDIX D - METHOD FOR THE DETERMINATION OF THE RESISTANCE OF CERTAIN COMPONENTS TO ULTRAVIOLET LIGHT
34 - D1 SCOPE
34 - D2 PRINCIPLE
34 - D3 TEST APPARATUS
34 - D4 PROCEDURE
34 - D5 REPORT
35 - APPENDIX E - METHOD FOR THE DETERMINATION OF THE EFFECT OF AN EXTERNAL MAGNETIC FIELD
35 - E1 SCOPE
35 - E2 PRINCIPLE
35 - E3 TEST APPARATUS
35 - E4 PROCEDURE
35 - E4.1 Single-element meter
35 - E4.2 Multi-element meter
36 - E5 REPORT

Specifies safety and performance requirements for general purpose single-rate and multi-rate induction watthour meters with terminals arranged for bottom connection or with contact blades arranged for the meter to plug-in to a socket conforming to AS1284.4.

This Standard specifies requirements for general purpose single-rate and multi-rate induction watthour meters (hereinafter referred to as ‘meters’) for the measurement of 50 Hz a.c. electrical energy in domestic, industrial or commercial premises.The Standard specifies terminal arrangements and connections for bottom-connected meters, also contact blade arrangements and connections for single-element single-phase 2-wire plug-in meters by cross-reference to AS 1284.4.NOTE: This Standard includes guidance to purchasers of meters. Appendix A provides information which should be supplied with enquiry and order to facilitate the specification and purchase of meters.

Originated as part of AS C39-1927T and AS C39.3-1965.
Previous edition AS 1284.1-1991.
Fourth edition 2004.