AS/NZS 61000.2.2:2003

1 - AS/NZS 61000.2.2:2003 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 Definitions
8 - 3.1 General definitions
8 - 3.1.1 (electromagnetic) disturbance
9 - 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
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
11 - 3.2.8 voltage unbalance (imbalance)
11 - 4 Compatibility levels
11 - 4.1 General comment
11 - 4.2 Voltage fluctuations and flicker
13 - 4.3 Harmonics
13 - 4.4 Interharmonics
14 - 4.5 Voltage dips and short supply interruptions
14 - 4.6 Voltage unbalance
15 - 4.7 Transient overvoltages
15 - 4.8 Temporary power frequency variation
15 - 4.9 DC component
16 - 4.10 Mains signalling
16 - 4.10.1 General
16 - 4.10.2 Ripple control systems (110 Hz to 3 000 Hz)
17 - 4.10.3 Medium-frequency power-line carrier systems (3 kHz to 20 kHz)
17 - 4.10.4 Radio-frequency power-line carrier systems (20 kHz to 148,5 kHz)
17 - 4.10.5 Mains-mark systems
18 - Annex A - The function of compatibility levels and planning levels in EMC
18 - A.1 The need for compatibility levels
18 - A.2 Relation between compatibility level and immunity levels
19 - A.3 Relation between compatibility level and emission limits
20 - A.4 Planning levels
21 - A.5 Illustration of compatibility, emission, immunity and planning levels
22 - Annex B - Discussion of some disturbance phenomena
22 - B.1 Resolution of non-sinusoidal voltages and currents
24 - B.2 Interharmonics and voltage components at frequencies above that of the 50 th harmonic
28 - B.3 Voltage dips and short supply interruptions
29 - B.4 Transient overvoltages
29 - B.5 DC component
30 - Bibliography

Specifies compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems. This Standard is identical with and has been reproduced from IEC 61000-2-2:2002.

This standard is concerned with conducted disturbances in the frequency range from 0 kHz to9 kHz, with an extension up to 148,5 kHz specifically for mains signalling systems. It gives compatibility levels for public low voltage a.c. distribution systems having a nominal voltageup to 420 V, single-phase or 690 V, three-phase and a nominal frequency of 50 Hz or 60 Hz.The compatibility levels specified in this standard apply at the point of common coupling. Atthe power input terminals of equipment receiving its supply from the above systems the severity levels of the disturbances can, for the most part, be taken to be the same as the levels at the point of common coupling. In some situations this is not so, particularly in the case of a long line dedicated to the supply of a particular installation, or in the case of a disturbance generated or amplified within the installation of which the equipment forms a part.Compatibility levels are specified for electromagnetic disturbances of the types which can be expected in public low voltage power supply systems, for guidance in:– the limits to be set for disturbance emission into public power supply systems (includingthe planning levels defined in 3.1.5).– 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 50th harmonic;– voltage distortions at higher frequencies (above the 50th 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 yet possible to establish compatibility levels, some information is provided.

First published as AS/NZS 61000.2.2:2003.