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AS/NZS 61000.2.12:2003

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Electromagnetic compatibility (EMC) Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems (Reconfirmed 2013)
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

06-06-2023

Language(s)

English

Published date

12-29-2003

Preview

1 - AS/NZS 61000.2.12:2003 ELECTROMAGNETIC COMPATIBILITY(EMC) - ENVIRONMENT-COMPATIBILITY LEVELS FOR LOW-FREQUENCY CONDUCTED...
4 - PREFACE
6 - CONTENTS
7 - 1 Scope and object
8 - 2 Normative references
8 - 3 Terms and definitions
8 - 3.1 General definitions
8 - 3.1.1 (electromagnetic) disturbance
8 - 3.1.2 disturbance level
9 - 3.1.3 electromagnetic compatibility
9 - 3.1.4 (electromagnetic) compatibility level
9 - 3.1.5 planning level
9 - 3.1.6 point of common coupling PCC
9 - 3.2 Phenomena related definitions
10 - 3.2.1 fundamental frequency
10 - 3.2.2 fundamental component
10 - 3.2.3 harmonic frequency
10 - 3.2.4 harmonic component
10 - 3.2.5 interharmonic frequency
10 - 3.2.6 interharmonic component
11 - 3.2.7 total harmonic distortion THD
11 - 3.2.8 voltage unbalance (imbalance)
11 - 4 Compatibility levels
11 - 4.1 General comment
12 - 4.2 Voltage fluctuations and flicker
12 - 4.3 Harmonics
13 - 4.4 Interharmonics and voltage components at frequencies above that of the 50 th harmonic
13 - 4.5 Voltage dips and short supply interruptions
14 - 4.6 Voltage unbalance
14 - 4.7 Transient overvoltages
14 - 4.8 Temporary power frequency variation
14 - 4.9 DC component
14 - 4.10 Mains signalling
15 - 4.10.1 Ripple control systems (110 Hz to 3 000 Hz)
16 - 4.10.2 Medium-frequency power-line carrier systems (3 kHz to 20 kHz)
16 - 4.10.3 Radio-frequency power-line carrier systems (20 kHz to 148,5 kHz)
16 - 4.10.4 Mains-mark systems
17 - Annex A - The function of compatibility levels and planning levels in EMC
17 - A.1 The need for compatibility levels
17 - A.2 Relation between compatibility level and immunity levels
18 - A.3 Relation between compatibility level and emission limits
19 - A.4 Planning levels
20 - A.5 Illustration of compatibility, emission, immunity and planning levels
21 - Annex B - Discussion of some disturbance phenomena
21 - B.1 Resolution of non-sinusoidal voltages and currents
23 - B.2 Interharmonics and voltage components at frequencies above that of the 50th harmonic
25 - B.3 Voltage dips and short supply interruptions
26 - B.4 Transient overvoltages
26 - B.5 DC component
28 - Bibliography

Specifies compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems. This Standard is identical with and has been reproduced from IEC 61000-2-12:2003.

This part of AS/NZS 61000 is concerned with conducted disturbances in the frequency rangefrom 0 kHz to 9 kHz, with an extension up to 148,5 kHz specifically for mains signallingsystems. It gives compatibility levels for public medium voltage a.c. distribution systemshaving a nominal voltage between 1 kV and 35 kV and a nominal frequency of 50 Hz or 60 Hz(see IEC 60038).Compatibility levels are specified for electromagnetic disturbances of the types which can be expected in public medium voltage power supply systems, for guidance in:a) the limits to be set for disturbance emission into public power supply systems (includingthe planning levels defined in 3.1.5);b) the immunity limits to be set by product committees and others for the equipmentexposed to the conducted disturbances present in public power supply systems.The disturbance phenomena considered are:• voltage fluctuations and flicker;• harmonics up to and including order 50;• inter-harmonics up to the 50 th harmonic;• voltage distortions at higher frequencies (above 50 th harmonic);• voltage dips and short supply interruptions;• voltage unbalance;• transient overvoltages;• power frequency variation;• d.c. components;• mains signalling.Most of these phenomena are described in IEC 61000-2-1. In cases where it is not yetpossible to establish compatibility levels, some information is provided.The medium-voltage systems covered by this standard are public distribution systemssupplying either:a) private installations in which equipment is connected directly or through transformers, orb) substations feeding public low-voltage distribution systems.The compatibility levels specified in this standard apply at the point of common coupling in the case of (a) and at the medium-voltage terminals of the substation in the case of (b). See Clause 4.

Committee
EL-034
DocumentType
Standard
ISBN
0 7337 5642 5
Pages
22
ProductNote
This standard has been reconfirmed in Australia in 2013 and remains current in New Zealand. Reconfirmation Notice 29-11-2013
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
IEC 61000-2-12:2003 Identical

First published as AS/NZS 61000.2.12:2003.Reconfirmed 2013. First published as AS/NZS 61000.2.12:2003.

AS/NZS 61000.2.2:2003 Electromagnetic compatibility (EMC) Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems (Reconfirmed 2013)
AS/NZS 61000.4.7:1999 Electromagnetic compatibility (EMC) Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto

AS/NZS 61058.1:2008 Switches for appliances General requirements (IEC 61058-1, Ed. 3.1 (2000), MOD)
AS 2703-2008 Vehicle loop detector sensors
AS/NZS 4871.1:2010 Electrical equipment for mines and quarries General requirements
AS 2067-2008 Substations and high voltage installations exceeding 1 kV a.c.
AS/NZS 61000.2.4:2009 Electromagnetic compatibility (EMC) Environment-Compatibility levels in industrial plants for low-frequency conducted disturbances (Reconfirmed 2020)
AS/NZS 4871.1:2012 Electrical equipment for mines and quarries General requirements
AS/NZS 3007:2013 Electrical equipment in mines and quarries - Surface installations and associated processing plant

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