EN 62586-1:2014

SLOVENSKI STANDARD
01-oktober-2014
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Power quality measurement in power supply systems - Part 1: Power Quality Instruments
(PQI) (IEC 62586-1:2013)
Messung der Spannungsqualität in Energieversorgungssystemen -Teil 1: Messgeräte für
die Spannungsqualität (IEC 62586-1:2013)
Mesure de la qualité de l'alimentation dans les réseaux d'alimentation - Partie 1:
Instruments de mesure de la qualité de l'alimentation (CIE 62586-1:2013)
Ta slovenski standard je istoveten z: EN 62586-1:2014
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62586-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS 17.220.20
English Version
Power quality measurement in power supply systems - Part 1:
Power quality instruments (PQI)
(IEC 62586-1:2013)
Mesure de la qualité de l'alimentation dans les réseaux Messung der Spannungsqualität in
d'alimentation - Partie 1: Instruments de mesure de la Energieversorgungssystemen - Teil 1: Messgeräte für die
qualité de l'alimentation Spannungsqualität
(CEI 62586-1:2013) (IEC 62586-1:2013)
This European Standard was approved by CENELEC on 2014-01-16. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62586-1:2014 E
Foreword
The text of document 85/460/FDIS, future edition 1 of IEC 62586-1, prepared by IEC/TC 85
"Measuring equipment for electrical and electromagnetic quantities" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 62586-1:2014.

The following dates are fixed:
(dop) 2014-12-20
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2017-01-16
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive.

For the relationship with EU Directive see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 62586-1:2013 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60359 NOTE Harmonized as EN 60359.
IEC 61010 Series NOTE Harmonized as EN 61010 Series (partly modified).

- 3 - EN 62586-1:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu
Publication Year Title EN/HD Year

IEC 60068-1 -  Environmental testing - EN 60068-1 -
Part 1: General and guidance
IEC 60068-2-1 -  Environmental testing - EN 60068-2-1 -
Part 2-1: Tests - Test A: Cold
IEC 60068-2-2 -  Environmental testing - EN 60068-2-2 -
Part 2-2: Tests - Test B: Dry heat
IEC 60068-2-6 -  Environmental testing - EN 60068-2-6 -
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)
IEC 60068-2-14 -  Environmental testing - EN 60068-2-14 -
Part 2-14: Tests - Test N: Change of
temperature
IEC 60068-2-27 -  Environmental testing - EN 60068-2-27 -
Part 2-27: Tests - Test Ea and guidance:
Shock
IEC 60068-2-31 -  Environmental testing - EN 60068-2-31 -
Part 2-31: Tests - Test Ec: Rough
handling shocks, primarily for equipment-
type specimens
IEC 60068-2-52 -  Environmental testing - EN 60068-2-52 -
Part 2-52: Tests - Test Kb: Salt mist,
cyclic (sodium chloride solution)
Environmental testing -
IEC 60068-2-57 -  EN 60068-2-57 -
Part 2-57: Tests - Test Ff: Vibration -
Time-history and sine-beat method
IEC 60068-2-78 -  Environmental testing - EN 60068-2-78 -
Part 2-78: Tests - Test Cab: Damp heat,
steady state
IEC 60529 -  Degrees of protection provided by EN 60529 -
enclosures (IP Code)
IEC 60654-1 -  Industrial-process measurement and EN 60654-1 -
control equipment - Operating
conditions -
Part 1: Climatic conditions
Publication Year Title EN/HD Year

IEC 60664-1 2007 Insulation coordination for equipment EN 60664-1 2007
within low-voltage systems -
Part 1: Principles, requirements and tests
IEC 60721-3-1 -  Classification of environmental EN 60721-3-1 -
conditions -
Part 3: Classification of groups
of environmental parameters
and their severities -
Section 1: Storage
IEC 60721-3-2 -  Classification of environmental EN 60721-3-2 -
conditions -
Part 3: Classification of groups of
environmental parameters and their
severities -
Section 2: Transportation
IEC 60721-3-3 -  Classification of environmental EN 60721-3-3 -
conditions -
Part 3: Classification of groups of
environmental parameters and their
severities -
Section 3: Stationary use at
weatherprotected locations
IEC 61000-4-7 2002 Electromagnetic compatibility (EMC) - EN 61000-4-7 2002
+A1 2008 Part 4-7: Testing and measurement +A1 2009
techniques - General guide on harmonics
and interharmonics measurements and
instrumentation, for power supply
systems and equipment connected
thereto
IEC 61000-4-15 2010 Electromagnetic compatibility (EMC) - EN 61000-4-15 2011
Part 4-15: Testing and measurement
techniques - Flickermeter - Functional
and design specifications
IEC 61000-4-30 2008 Electromagnetic compatibility (EMC) - EN 61000-4-30 2009
Part 4-30 : Testing and measurement
techniques - Power quality measurement
methods
IEC/TS 61000-6-5 -  Electromagnetic compatibilty (EMC) - - -
Part 6-5: Generic standards - Immunity
for power station and substation
environments
IEC 61010-1 2010 Safety requirements for electrical EN 61010-1 2010
equipment for measurement, control
and laboratory use -
Part 1: General requirements
IEC 61010-2-030 -  Safety requirements for electrical EN 61010-2-030 -
equipment for measurement, control
and laboratory use -
Part 2-030: Particular requirements for
testing and measuring circuits

- 5 - EN 62586-1:2014
Publication Year Title EN/HD Year

IEC 62262 -  Degrees of protection provided by EN 62262 -
enclosures for electrical equipment
against external mechanical impacts
(IK code)
IEC 62586-2 -  Power quality measurement in power EN 62586-2 -
supply systems -
Part 2: Functional tests and uncertainty
requirements
CISPR 22 -  Information technology equipment - EN 55022 -
Radio disturbance characteristics - Limits
and methods of measurement
Annex ZZ
(informative)
Coverage of Essential Requirements of EU Directives

This European Standard has been prepared under a mandate given to CENELEC by the
European Commission and the European Free Trade Association and within its scope the
standard covers protection requirements of Annex I Article 1 of the EU Directive 2004/108/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.
WARNING: Other requirements and other EU Directives may be applicable to the products falling
within the scope of this standard.

IEC 62586-1 ®
Edition 1.0 2013-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power quality measurement in power supply systems –

Part 1: Power quality instruments (PQI)

Mesure de la qualité de l'alimentation dans les réseaux d'alimentation –

Partie 1: Instruments de mesure de la qualité de l'alimentation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 17.220.20 ISBN 978-2-8322-1290-5

– 2 – 62586-1 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviations, notations and symbols . 9
3.1 General definitions . 9
3.2 Terms and definitions related to environments. 10
3.3 Definitions related to uncertainty . 10
3.4 Notations . 11
3.4.1 Functions . 11
3.4.2 Symbols and abbreviations . 11
3.4.3 Indices . 12
4 Environmental conditions . 12
4.1 General . 12
4.2 Environments FI1, FI2, FI1-H, FI2-H, FO and FO-H . 13
4.3 Environments PI, PI-H, PO and PO-H . 14
4.4 Relationship between ambient air temperature and relative humidity . 15
5 Ratings . 15
5.1 Rated input energising voltages . 15
5.2 Rated frequencies . 15
6 Design and construction . 15
6.1 General . 15
6.2 General architecture . 15
6.3 Functions embedded in PQI-A and PQI-S . 16
6.3.1 PQI-A minimum functions definition . 16
6.3.2 PQI-S minimum functions definition . 17
6.3.3 Summary of IEC 61000-4-30 requirements for functions . 17
6.4 Additional requirements complementary to IEC 61000-4-30 . 18
6.4.1 Data to be provided for testing reasons . 18
6.4.2 Resolution of the presented data . 20
6.4.3 Clarification about “data flagging” . 20
6.4.4 Temperature drift requirement within the rated range of operation for
ambient air temperature . 20
6.5 Safety requirements . 21
6.6 EMC requirements . 22
6.6.1 Emissions . 22
6.6.2 Immunity . 22
6.7 Climatic requirements of PQI . 22
6.8 Mechanical requirements . 22
6.8.1 Product mechanical robustness . 22
6.8.2 Enclosure robustness . 22
6.9 Degree of protection by enclosures . 23
6.10 Start-up requirements . 23
7 Marking and operating instructions . 23
7.1 General . 23
7.2 Marking . 23

62586-1 © IEC:2013 – 3 –
7.3 Operating instructions . 23
8 Functional, environmental and safety type tests . 24
8.1 General . 24
8.2 Reference conditions for type tests . 24
8.3 Safety tests . 25
8.4 EMC tests . 25
8.4.1 Emissions . 25
8.4.2 Immunity . 25
8.5 Climatic tests . 26
8.6 Mechanical tests . 27
8.6.1 Product mechanical robustness . 27
8.6.2 Degree of protection provide by enclosures for electrical equipment
against external mechanical impacts (IK code) . 28
8.6.3 Degree of protection by enclosure (IP code) . 28
8.7 Functional and uncertainty tests . 28
9 Routine tests . 28
9.1 General . 28
9.2 Protective bonding test . 28
9.3 Dielectric strength test . 28
9.4 Intrinsic uncertainty test . 28
10 Certificates and declarations . 28
11 Re-calibration and re-verification . 28
Annex A (informative) Information about environment H and G described in
IEC/TS 61000-6-5 . 29
Bibliography . 30

Figure 1 – Instrument generic measurement chain . 16
Figure 2 – Uncertainty requirement as a function of temperature . 21
Figure A.1 – Example of power station and substation: selection of the specification
for apparatus and the related connections . 29

Table 1 – Products coding table . 12
Table 2 – Definition of class A products . 12
Table 3 – Definition of class S products . 13
Table 4 – Description of FI1, FI2, FI1-H, FI2-H, FO, FO-H environments . 13
Table 5 – Description of PI, PI-H, PO and PO-H environments . 14
Table 6 – PQI-A functions . 16
Table 7 – PQI-S minimum functions . 17
Table 8 – Summary of measurements requested for testing . 19
Table 9 – Uncertainty multipliers for different temperature ranges . 21
Table 10 – Enclosure mechanical requirements . 22
Table 11 – Minimum IP requirements . 23
Table 12 – Characteristics specification template . 24
Table 13 – Reference conditions for testing . 25
Table 14 – Climatic requirements . 26
Table 15 – Product mechanical requirements . 27

– 4 – 62586-1 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER QUALITY MEASUREMENT IN POWER SUPPLY SYSTEMS –

Part 1: Power quality instruments (PQI)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62586-1 has been prepared by IEC technical committee 85:
Measuring equipment for electrical and electromagnetic quantities.
The text of this standard is based on the following documents:
FDIS Report on voting
85/460/FDIS 85/466/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 62586 series, published under the general title Power quality
measurement in power supply systems, can be found on the IEC website.

62586-1 © IEC:2013 – 5 –
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – 62586-1 © IEC:2013
INTRODUCTION
Electricity as delivered to the network users has several characteristics which are variable
and which affect its usefulness to the network user.
Power quality instruments on the market have different characteristics. This standard provides
a common system of references in order to facilitate their selection, comparison and
evaluation. This standard specifies a classification based on product performances,
environment and safety.
It is acknowledged that IEC 61000-4-30 is a basic EMC publication. Detailed guidance on
instrument performance, performance verification methods, additional influence quantities and
other similar information should, in general, be found in a product standard.
IEC 62586-1 is a product standard that refers to IEC 61000-4-30, IEC 61000-4-7 and
IEC 61000-4-15 for measuring methods. IEC 62586-2 specifies functional tests and
uncertainty requirements for instruments in the scope of IEC 62586-1.
IEC 62586-1 is therefore complementing basic EMC standards with environmental, safety and
performance requirements.
62586-1 © IEC:2013 – 7 –
POWER QUALITY MEASUREMENT IN POWER SUPPLY SYSTEMS –

Part 1: Power quality instruments (PQI)

1 Scope
This part of IEC 62586 specifies product and performance requirements for instruments
whose functions include measuring, recording and possibly monitoring power quality
parameters in power supply systems, and whose measuring methods (class A or class S) are
defined in IEC 61000-4-30.
These requirements are applicable in single, dual- (split phase) and 3-phase a.c. power
supply systems at 50 Hz or 60 Hz.
These instruments can be used:
– in the generation, transmission and distribution of electricity, for example inside a power
station, substation or a distributed generator connection.
– at the interface point between the installation and the network, e.g. in order to check the
compliance of the connection agreement between a network operator and the customer.
NOTE 1 These instruments can also be used for other applications, e.g. inside commercial / industrial
installations especially where comparable measurements are needed (i.e. data centers or petrochemical plants).
These instruments are fixed-installed or portable. They are intended to be used indoors
and/or outdoors.
Devices such as digital fault recorders, energy/power meters, protection relays or circuit
breakers may include power quality functions defined in 61000-4-30 class A or class S. If
such devices are specified according to this standard, then this standard fully applies and
applies in addition to the relevant product standard. This standard does not replace the
relevant product standard.
NOTE 2 It is not the intent of this standard to address user interface or topics unrelated to device measurement
performance.
NOTE 3 The standard does not cover post-processing and interpretation of the data, for example with a dedicated
software.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60068-2-1, Environmental testing – Part 2-1: Tests – Tests A: Cold
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Tests B: Dry heat
IEC 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)

– 8 – 62586-1 © IEC:2013
IEC 60068-2-14, Environmental testing – Part 2-14 Tests – Test N: Change of temperature
IEC 60068-2-27, Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks,
primarily for equipment-type specimens
IEC 60068-2-52, Environmental testing – Part 2-52: Tests – Test Kb: Salt mist, cyclic (sodium
chloride solution)
IEC 60068-2-57, Environmental testing – Part 2-57: Tests – Test Ff: Vibration – Time-history
and sine-beat method
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady
state
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60654-1, Industrial-process measurement and control equipment – Operating conditions –
Part 1: Climatic conditions
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60721-3-1, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 1: Storage
IEC 60721-3-2, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 2: Transportation
IEC 60721-3-3, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 3: Stationary use at weatherprotected
locations
IEC 61000-4-7:2002, Electromagnetic compatibility (EMC) – Part 4-7: Testing and
measurement techniques – General guide on harmonics and interharmonics measurements
and instrumentation, for power supply systems and equipment connected thereto
Amendment 1:2008
IEC 61000-4-15:2010, Electromagnetic compatibility (EMC) – Part 4-15: Testing and
measurement techniques – Flickermeter – Functional and design specifications
IEC 61000-4-30:2008, Electromagnetic compatibility (EMC) – Part 4-30: Testing and
measurement techniques – Power quality measurement methods
IEC /TS 61000-6-5, Electromagnetic compatibility (EMC) – Part 6-5: Generic standards –
Immunity for power station and substation environments
IEC 61010-1:2010, Safety requirements for electrical equipment for measurement, control,
and laboratory use – Part 1: General requirements
IEC 61010-2-030, Safety requirements for electrical equipment for measurement, control, and
laboratory use – Part 2-030: Particular requirements for testing and measuring circuits
IEC 62262, Degrees of protection provided by enclosures for electrical equipment against
external mechanical impacts (IK code)

62586-1 © IEC:2013 – 9 –
IEC 62586-2, Power quality measurement in power supply systems – Part 2: Functional tests
and uncertainty requirements
CISPR 22, Information technology equipment – Radio disturbance characteristics – Limits and
methods of measurement
3 Terms, definitions, abbreviations, notations and symbols
For the purposes of this document, the terms and definitions given in IEC 61000-4-30 as well
as the following terms and definitions apply.
3.1 General definitions
3.1.1
power quality instrument
PQI
instrument whose main function is to measure, record and possibly monitor power quality
parameters in power supply systems, and whose measuring methods (class A or class S) are
defined in IEC 61000-4-30
3.1.2
power quality instrument class A
PQI-A
PQI whose measuring methods comply with class A of IEC 61000-4-30
3.1.3
power quality instrument class S
PQI-S
PQI whose measuring methods comply with class S of IEC 61000-4-30
3.1.4
portable instrument
portable measuring instrument
measuring instrument designed to be easily carried by hand and to be connected and
disconnected by the user
[SOURCE: IEC 60050-300:2001, 312-02-18]
3.1.5
fixed installed instrument
fixed installed measuring instrument
measuring instrument designed to be permanently mounted and which is intended to be
connected by means of permanently installed connectors
[SOURCE: IEC 60050-300:2001, 312-02-17, modified – “conductors” has been replaced by
“connectors”.]
3.1.6
panel mounted instrument
fixed installed instrument intended to be mounted in a cut out of a panel or a chassis
3.1.7
modular instrument fixed on DIN rail
fixed installed instrument intended to be used in switchgear or control gear, fixed on a DIN rail

– 10 – 62586-1 © IEC:2013
3.1.8
housing instrument fixed on DIN rail
fixed installed instrument, intended to be fixed on a DIN rail within a control panel
3.2 Terms and definitions related to environments
3.2.1
EMC environment H
harsh EMC environment
EXAMPLES High voltage stations, arc furnaces, welding, aluminium plants.
Note 1 to entry: This environment is described in IEC 61000-6-5 as H environment. A summary description of
such environments is given in Annex A.
3.2.2
EMC environment G
general EMC environment
EXAMPLES Power stations, MV and LV substations, extended industrial applications.
Note 1 to entry: This environment is described in IEC 61000-6-5 as G environment. A summary description of
such environments is given in Annex A.
3.2.3
uncontrolled environment
environment where climatic conditions such as temperature and humidity depend on external
climatic conditions and on housing of products
Note 1 to entry: Shelter or housing can be used to minimize the impact of environment.
3.2.4
controlled environment
environment where climatic conditions such as temperature and humidity are under control
Note 1 to entry: This kind of environment is usually controlled by HVAC systems.
3.2.5
limit range of operation
extreme conditions that an measuring instrument can withstand without damage and without
degradation of its metrological characteristics when it is subsequently operated within its
rated operating conditions
Note 1 to entry: Measuring instrument should be able to function within the limit range of operation
3.2.6
rated range of operation
range of values of a single influence quantity that forms a part of the rated operating
conditions
Note 1 to entry: Uncertainty requirements should be met within the rated range of operation
3.3 Definitions related to uncertainty
3.3.1
intrinsic uncertainty
uncertainty of a measuring instrument when used under reference conditions
Note 1 to entry: In this standard, it is the uncertainty of a measured value defined in its rated range and with all
influence quantities under reference conditions, unless otherwise stated.
[SOURCE: IEC 60359:2001, 3.2.10, modified – Note 1 to entry has been added.]

62586-1 © IEC:2013 – 11 –
3.3.2
influence quantity
quantity which is not the subject of the measurement and whose change affects the
relationship between the indication and the result of the measurement
Note 1 to entry: Influence quantities can originate from the measured system, the measuring equipment or the
environment.
Note 2 to entry: As the calibration diagram depends on the influence quantities, in order to assign the result of a
measurement it is necessary to know whether the relevant influence quantities lie within the specified range.
[SOURCE: IEC 60359:2001, 3.1.14, modified – Note 3 has been deleted.]
3.3.3
variation
variation due to a single influence quantity
difference between the value measured under reference conditions and any value measured
within the rated operating range (for this specific influence quantity)
Note 1 to entry: The other performance characteristics and the other influence quantities should stay within the
ranges specified for the reference conditions.
3.3.4
rated operating conditions
set of conditions that must be fulfilled during the measurement in order that a calibration
diagram may be valid
Note 1 to entry: Beside the specified measuring range and rated operating ranges for the influence quantities, the
conditions may include specified ranges for other performance characteristics and other indications that cannot be
expressed as ranges of quantities.
[SOURCE: IEC 60359:2001, 3.3.13]
3.3.5
operating uncertainty
uncertainty under the rated operating conditions
Note 1 to entry: The operating instrumental uncertainty, like the intrinsic one, is not evaluated by the user of the
instrument, but is stated by its manufacturer or calibrator. The statement may be expressed by means of an
algebraic relation involving the intrinsic instrumental uncertainty and the values of one or several influence
quantities, but such a relation is just a convenient means of expressing a set of operating instrumental
uncertainties under different operating conditions, not a functional relation to be used for evaluating the
propagation of uncertainty inside the instrument.
[SOURCE: IEC 60359:2001, 3.2.11, modified – the word "instrumental" has been removed
from both the term and the definition.]
3.3.6
overall system uncertainty
uncertainty including the uncertainty of all components related to the measurement system
(sensors, wires, measuring instrument, etc.) under the rated operating conditions
3.4 Notations
3.4.1 Functions
See functions defined in IEC 61000-4-30.
3.4.2 Symbols and abbreviations
N.R. Not requested
N.A. Not applicable
– 12 – 62586-1 © IEC:2013
3.4.3 Indices
min minimum value
max maximum value
4 Environmental conditions
4.1 General
This standard classifies power quality instruments according to the following criterion:
• instruments that are complying either with class A measurement methods of
IEC 61000-4-30 (PQI-A) or with class S measurement methods of IEC 61000-4-30 (PQI-
S);
• instruments that are either fixed installed (F), or portable (P);
• instruments that are intended to be used either Indoor (I) or Outdoor (O);
• instruments that are intended to be used in generic EMC environment G or in specific
harsh EMC environment H. See Annex A.
Instruments shall be named according to coding of Table 1. The list of all allowed instruments
is given in Table 2 and Table 3.
Table 1 – Products coding table
Power quality Functions class Fixed installed (F) Indoor (I) or EMC environment
instrument (PQI) according to or Portable (P) Outdoor (O) G (blank) or H (-H)
IEC 61000-4-30 (A instrument application
or S)
a a
PQI-A or PQI-S -FI1, -FI2, -FO, -PI or -PO Blank or -H
a
See Table 4 and Table 5.
Table 2 – Definition of class A products
Fixed installed Portable
Indoor application Outdoor Indoor application Outdoor
application application
EMC PQI-A-FI1 PQI-A-FO PQI-A-PI PQI-A-PO
environment G
PQI-A-FI2
EMC PQI-A-FI1-H PQI-A-FO-H PQI-A-PI-H PQI-A-PO-H
environment H
PQI-A-FI2-H
NOTE FI1 is an indoor environment with uncontrolled temperature variations, while FI2 is an indoor
environment with controlled temperature variations

62586-1 © IEC:2013 – 13 –
Table 3 – Definition of class S products
Fixed installed Portable
Indoor application Outdoor Indoor application Outdoor
application application
EMC PQI-S-FI1 PQI-S-FO PQI-S-PI PQI-S-PO
environment G
PQI-S-FI2
EMC PQI-S-FI1-H PQI-S-FO-H PQI-S-PI-H PQI-S-PO-H
environment H
PQI-S-FI2-H
NOTE FI1 is an indoor environment with uncontrolled temperature variations, while FI2 is an indoor
environment with controlled temperature variations

4.2 Environments FI1, FI2, FI1-H, FI2-H, FO and FO-H
Those environments are dedicated to fixed-installed instruments, used:
– in EMC environment G or in EMC environment H;
– for indoor operation or outdoor operation.
Table 4 – Description of FI1, FI2, FI1-H, FI2-H, FO, FO-H environments
Environmental parameters Storage and transport Indoor operation Outdoor operation
Ambient temperature: limit IEC 60721-3-1 / 1K5    FI1: IEC 60721-3-3 / 3K6    Depends on the
a
range of operation geographic regions or
-40 °C to + 70 °C -25 °C to + 55 °C
g
the application
IEC 60721-3-2 / 2K4    FI2: IEC 60721-3-3 / 3K5
At least the
-40 °C to + 70 °C mod.: 0 °C to +45 °C
requirements for indoor
operation are mandatory
Ambient temperature: rated --- FI1:IEC 60721-3-3 / 3K5 IEC 60721-3-3 / 3K6
b
range of operation
mod.   -10 °C to + 45° -25 °C to + 55 °C
FI2:IEC 60721-3-3 / 3K5
mod.   0 °C to + 45 °C
d d d
Relative humidity: 24 h average from 5 % to 95 % from 5 % to 95 % from 5 % to 95 %
2 2
Solar radiations Negligible 700 W/m 1120 W/m
Wind-driven precipitation (rain, Negligible Negligible Significant precipitation.
snow, hail, etc.)
Air pollution by dust, salt, No significant air No significant air Significant air pollution
c c
smoke, corrosive/flammable pollution pollution by dust and salt.
gas, vapours
Vibration, earth tremors IEC 60721-3-1 / 1M1 IEC 60721-3-3 / 3M1 IEC 60721-3-3 / 3M1
IEC 60721-3-2 / 2M1
Electromagnetic Environment --- IEC 61000-6-5 IEC 61000-6-5
disturbances s FI1, FI2, environment G environment G
immunity FO
Environment --- IEC 61000-6-5 IEC 61000-6-5
s FI1-H, FI2- environment H environment H
H, FO-H
Altitude ---
≤ 2 000 m ≤ 2 000 m
Pollution degree --- 2 according to IEC 61010 2 or 3 according to
IEC 61010
– 14 – 62586-1 © IEC:2013
Environmental parameters Storage and transport Indoor operation Outdoor operation
Overvoltage category (related --- IEC 61010 Overvoltage IEC 61010 Overvoltage
e f e f
to the mains supply) category III category III
Measurement category (related --- IEC 61010 Measurement IEC 61010 Measurement
e f e f
to the measurement inputs) category III or IV category III or IV
a
See definition. Temperature may be lower on the front
...