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 (IbImax)
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