Electromagnetic compatibility (EMC) Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems
Standards Australia
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.
RECONFIRMATION NOTICE
Technical Committee EL-034 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been determined
that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original
date of publication. Users are advised to ensure that they are using the latest versions of
such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 31 October 2013.
Approved for reconfirmation in New Zealand on behalf of the Standards Council of
New Zealand on 25 October 2013.
The following are represented on Technical Committee EL-034:
Australian Chamber of Commerce and Industry
Australian Industry Group
Australian Information Industry Association
Bureau of Steel Manufacturers of Australia
Consumer Electronics Suppliers Association
Consumers Federation of Australia
Electrical Regulatory Authorities Council
Electricity Engineers Association (New Zealand)
Energy Networks Association
Engineers Australia
Lighting Council Australia
Ministry of Business, Innovation and Employment (NZ)
National Measurement Institute
New Zealand Coordinating Committee on Power & Telecommunication Systems
New Zealand Electric Fence Energiser Manufacturers Standards WG
University of Canterbury New Zealand
University of Wollongong
This part of AS/NZS 61000 is concerned with conducted disturbances in the frequency range
from 0 kHz to 9 kHz, with an extension up to 148,5 kHz specifically for mains signalling
systems. It gives compatibility levels for public medium voltage a.c. distribution systems
having 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 (including
the planning levels defined in 3.1.5);
b) the immunity limits to be set by product committees and others for the equipment
exposed 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 yet
possible to establish compatibility levels, some information is provided.
The medium-voltage systems covered by this standard are public distribution systems
supplying either:
a) private installations in which equipment is connected directly or through transformers, or
b) 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.
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | This standard has been reconfirmed in Australia in 2013 and remains current in New Zealand. Reconfirmation Notice 29-11-2013 |
| Committee | EL-034 |
| Supersedes |
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