prEN IEC/IEEE 62582-6:2021

Nuclear power plants - Instrumentation and control important to safety - Electrical equipment condition monitoring methods - Part 6: Insulation resistance

This part of IEC/IEEE 62582 contains methods for condition monitoring of organic and polymeric materials in instrumentation and control cables using insulation resistance measurements in the detail necessary to produce accurate and reproducible results during simulated accident conditions. It includes the requirements for the measurement system and measurement procedure, and the reporting of the measurement results. NOTE Measurement of insulation resistance during simulated accident conditions with the aim of determining the lowest value during the accident in order to assess cable performance involves special requirements given in this document. Methods for measurement under stable (non-accident) conditions are available in other international standards, e.g. IEC 62631-3-3. The different parts of the IEC/IEEE 62582 series are measurement standards, primarily for use in the management of ageing in initial qualification and after installation. IEC/IEEE 62582- 1 includes requirements for the application of the other parts of the IEC/IEEE 62582 series and some elements which are common to all methods. Information on the role of condition monitoring in qualification of equipment important to safety is found in IEC/IEEE 60780-323.

Kernkraftwerke - Leittechnik mit sicherheitstechnischer Bedeutung - Zustandsüberwachung elektrischer Geräte - Teil 6: Isolationswiderstand

Centrales nucléaires de puissance – Instrumentation et contrôle-commande importants pour la sûreté – Méthodes de surveillance de l'état des matériels électriques – Partie 6: Résistance d'isolement

Jedrske elektrarne - Merilna in nadzorna oprema za zagotavljanje varnosti - Metode za spremljanje stanja električne opreme - 6. del: Izolacijska upornost

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN IEC/IEEE 62582-6:2021
01-maj-2021
Jedrske elektrarne - Merilna in nadzorna oprema za zagotavljanje varnosti -
Metode za spremljanje stanja električne opreme - 6. del: Izolacijska upornost

Nuclear power plants - Instrumentation and control important to safety - Electrical

equipment condition monitoring methods - Part 6: Insulation resistance
Kernkraftwerke - Leittechnik mit sicherheitstechnischer Bedeutung -
Zustandsüberwachung elektrischer Geräte - Teil 6: Isolationswiderstand

Centrales nucléaires de puissance - Instrumentation et contrôle-commande importants

pour la sûreté - Méthodes de surveillance de l'état des matériels électriques - Partie 6:

Résistance d'isolement
Ta slovenski standard je istoveten z: prEN IEC/IEEE 62582-6:2021
ICS:
27.120.20 Jedrske elektrarne. Varnost Nuclear power plants. Safety
oSIST prEN IEC/IEEE 62582-6:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
---------------------- Page: 2 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
EUROPEAN STANDARD DRAFT
prEN IEC/IEEE 62582-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2021
ICS 27.120.20
English Version
Nuclear power plants - Instrumentation and control important to
safety - Electrical equipment condition monitoring methods - Part
6: Insulation resistance
(IEC/IEEE 62582-6:2019)

Centrales nucléaires de puissance - Instrumentation et Kernkraftwerke - Leittechnik mit sicherheitstechnischer

contrôle-commande importants pour la sûreté - Méthodes Bedeutung - Zustandsüberwachung elektrischer Geräte -

de surveillance de l'état des matériels électriques - Partie 6: Teil 6: Isolationswiderstand

Résistance d'isolement (IEC/IEEE 62582-6:2019)
(IEC/IEEE 62582-6:2019)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-05-28.
The text of this draft consists of the text of IEC/IEEE 62582-6:2019.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 73225 Ref. No. prEN IEC/IEEE 62582-6:2021 E
---------------------- Page: 3 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
prEN IEC/IEEE 62582-6:2021 (E)
European foreword

This document (prEN IEC/IEEE 62582-6:2021) consists of the text of document IEC/IEEE 62582-

6:2019, prepared by IEC/TC 45 "Instrumentation, control and electrical power systems of nuclear

facilities"
This document is currently submitted to the CENELEC Enquiry.
The following dates are proposed:
• latest date by which the existence of this document (doa) dor + 6 months
has to be announced at national level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be withdrawn (to be confirmed or
modified when voting)

As stated in the nuclear safety directive 2009/71/EURATOM, Chapter 1, Article 2, item 2, Member States

are not prevented from taking more stringent safety measures in the subject-matter covered by the

Directive, in compliance with Community law.

In a similar manner, this European standard does not prevent Member States from taking more stringent

nuclear safety and/or security measures in the subject-matter covered by this standard.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 62631-3-3 NOTE Harmonized as EN 62631-3-3
IEC/IEEE 60780-323 NOTE Harmonized as EN 60780-323
---------------------- Page: 4 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
prEN IEC/IEEE 62582-6:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. 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
JCGM 100 2008 Evaluation of measurement data - Guide to - -
the expression of uncertainty in
measurement
---------------------- Page: 5 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
---------------------- Page: 6 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
IEC/IEEE 62582-6
Edition 1.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Nuclear power plants ‒ Instrumentation and control important to safety ‒
Electrical equipment condition monitoring methods –
Part 6: Insulation resistance
Centrales nucléaires de puissance – Instrumentation et contrôle-commande
importants pour la sûreté – Méthodes de surveillance de l'état des matériels
électriques –
Partie 6: Résistance d'isolement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.120.20 ISBN 978-2-8322-7050-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
– 2 – IEC/IEEE 62582-6:2019 © IEC/IEEE 2019
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 8

4 Abbreviated terms and acronyms ..................................................................................... 9

5 General description ....................................................................................................... 10

6 Applicability and reproducibility ..................................................................................... 12

7 Instrumentation .............................................................................................................. 12

7.1 Measurement voltage level ................................................................................... 12

7.2 Uncertainty ........................................................................................................... 12

7.3 Calibration ............................................................................................................ 13

8 IR measurement procedure ........................................................................................... 13

8.1 General ................................................................................................................. 13

8.2 Requirements on tracking of changes of IR during the simulated accident

conditions ............................................................................................................. 13

8.3 Test specimen ...................................................................................................... 13

8.4 Interference .......................................................................................................... 13

8.5 Conditioning .......................................................................................................... 13

8.6 IR measurement during the dynamic phase of the simulated accident

conditions ............................................................................................................. 14

8.6.1 Set-up for the measurement .......................................................................... 14

8.6.2 Connection of IR voltage and start of measurement ....................................... 14

8.6.3 Default voltage .............................................................................................. 14

8.6.4 Determination of IR value with the specimen not energized during the

accident simulation ........................................................................................ 14

8.6.5 Determination of the IR value with the specimen energized during the

accident simulation ........................................................................................ 15

9 Measurement report ...................................................................................................... 16

Annex A (informative) Example of equivalent diagram for a cable and the measuring

device using DC .................................................................................................................... 17

Annex B (informative) Measurement of leakage current using AC voltage ............................ 18

Annex C (informative) Dependence of IR on temperature only and combined with

steam ................................................................................................................................... 19

Annex D (informative) Examples of results of measurement of IR on aged cables

during simulated accident conditions..................................................................................... 20

Annex E (informative) Example of a measurement loop and calculation of the time
available for stabilization for more than one conductor or group of conductors

measured with the same measurement instrument ................................................................ 23

E.1 Example of one measurement loop ....................................................................... 23

E.2 Total time for each measurement of all combinations during the dynamic

phase of the simulated accident conditions ........................................................... 23

Bibliography .......................................................................................................................... 24

Figure 1 – Time to stabilization of IR measured before LOCA, after 10 min in LOCA

and after 60 min in LOCA ...................................................................................................... 11

---------------------- Page: 8 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
IEC/IEEE 62582-6:2019 © IEC/IEEE 2019 – 3 –

Figure A.1 – Set-up for measurement of IR using a DC voltage source (guard is not

needed if the ground plane is close to the insulator) ............................................................. 17

Figure B.1 – Set-up for measurement of IR using an AC voltage source ............................... 18

Figure C.1 – Temperature influence on IR of an insulation between 20 °C and 150 °C .......... 19

Figure D.1 – Example of result of measurement of IR between conductors and

ground/shielding during a LOCA test ..................................................................................... 20

Figure D.2 – Example of measurement of IR between conductor and ground and

between conductors .............................................................................................................. 21

Figure D.3 – Example of measurement of IR on a three-conductor cable during LOCA

simulation ............................................................................................................................. 22

Figure E.1 – Example of one measurement loop ................................................................... 23

---------------------- Page: 9 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
– 4 – IEC/IEEE 62582-6:2019 © IEC/IEEE 2019
NUCLEAR POWER PLANTS ‒
INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY ‒
ELECTRICAL EQUIPMENT CONDITION MONITORING METHODS –
Part 6: Insulation resistance
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.

IEEE Standards documents are developed within IEEE Societies and Standards Coordinating Committees of the

IEEE Standards Association (IEEE-SA) Standards Board. IEEE develops its standards through a consensus

development process, which brings together volunteers representing varied viewpoints and interests to achieve

the final product. Volunteers are not necessarily members of IEEE and serve without compensation. While IEEE

administers the process and establishes rules to promote fairness in the consensus development process, IEEE

does not independently evaluate, test, or verify the accuracy of any of the information contained in its standards.

Use of IEEE Standards documents is wholly voluntary. IEEE documents are made available for use subject to

important notices and legal disclaimers (see http://standards.ieee.org/IPR/disclaimers.html for more

information).

IEC collaborates closely with IEEE in accordance with conditions determined by agreement between the two

organizations.

2) The formal decisions 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. The formal decisions of IEEE on technical matters, once consensus within IEEE Societies

and Standards Coordinating Committees has been reached, is determined by a balanced ballot of materially

interested parties who indicate interest in reviewing the proposed standard. Final approval of the IEEE

standards document is given by the IEEE Standards Association (IEEE-SA) Standards Board.

3) IEC/IEEE Publications have the form of recommendations for international use and are accepted by IEC

National Committees/IEEE Societies in that sense. While all reasonable efforts are made to ensure that the

technical content of IEC/IEEE Publications is accurate, IEC or IEEE 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

(including IEC/IEEE Publications) transparently to the maximum extent possible in their national and regional

publications. Any divergence between any IEC/IEEE Publication and the corresponding national or regional

publication shall be clearly indicated in the latter.

5) IEC and IEEE do not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC and IEEE are 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 IEEE or their directors, employees, servants or agents including individual

experts and members of technical committees and IEC National Committees, or volunteers of IEEE Societies

and the Standards Coordinating Committees of the IEEE Standards Association (IEEE-SA) Standards Board,

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/IEEE Publication or any other IEC or IEEE 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 implementation of this IEC/IEEE Publication may require use of

material covered by patent rights. By publication of this standard, no position is taken with respect to the

existence or validity of any patent rights in connection therewith. IEC or IEEE shall not be held responsible for

identifying Essential Patent Claims for which a license may be required, for conducting inquiries into the legal

validity or scope of Patent Claims or determining whether any licensing terms or conditions provided in

connection with submission of a Letter of Assurance, if any, or in any licensing agreements are reasonable or

non-discriminatory. Users of this standard are expressly advised that determination of the validity of any patent

rights, and the risk of infringement of such rights, is entirely their own responsibility.

---------------------- Page: 10 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
IEC/IEEE 62582-6:2019 © IEC/IEEE 2019 – 5 –
International Standard IEC/IEEE 62582-6 has been prepared by subcommittee 45A:

Instrumentation, control and electrical power systems of nuclear facilities, of IEC technical

committee 45: Nuclear instrumentation, in cooperation with the Nuclear Power Engineering

Committee of the Power & Energy Society of the IEEE] , under the IEC/IEEE Dual Logo

Agreement.
It is published as an IEC/IEEE dual logo standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
45A/1267/FDIS 45A/1277/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

A list of all parts in the IEC/IEEE 62582 series, published under the general title Nuclear

power plants – Instrumentation and control important to safety – Electrical equipment

condition monitoring methods, can be found on the IEC website.

International standards are drafted in accordance with the rules given in the ISO/IEC

Directives, Part 2.

The IEC Technical Committee and IEEE Technical Committee have 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.
_____________
A list of IEEE participants can be found at the following URL: https://ieee-
sa.imeetcentral.com/p/eAAAAAAAQbmGAAAAACt2TZA
---------------------- Page: 11 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
– 6 – IEC/IEEE 62582-6:2019 © IEC/IEEE 2019
INTRODUCTION
a) Technical background, main issues and organisation of the Standard

This IEC/IEEE standard specifically focuses on insulation resistance measurement methods

for monitoring of the dielectric condition of instrumentation and control cables during

simulation of design basis events.

This IEC/IEEE standard is the sixth part of the IEC/IEEE 62582-series. It contains detailed

descriptions of condition monitoring based on insulation resistance measurements.

The IEC/IEEE 62582-series of standards is issued with a joint logo which makes it applicable

to management of ageing of electrical equipment qualified to IEEE as well as IEC Standards.

For aged cables and accessories, the dielectric behaviour during simulated accident

conditions generally indicates the condition of the cable during the simulated accident

condition.

Significant research has been performed on condition monitoring techniques and the use of

these techniques in equipment qualification as noted in NUREG/CR-6704, vol.2
(BNL-NUREG-52610) and JNES-SS-0903, 2009.

It is intended that this Standard be used by test laboratories, operators of nuclear power

plants, systems evaluators and licensors.

b) Situation of the current Standard in the structure of the IEC SC 45A standard series

IEC/IEEE 62582-6 is the third level IEC SC 45A document tackling the specific issue of

application and performance of insulation resistance measurements during simulated accident

conditions in nuclear power plants.

IEC/IEEE 62582-6 is to be read in association with IEC/IEEE 62582-1. IEC/IEEE 62582-1

provides requirements for application of methods for condition monitoring of electrical

equipment important to safety of nuclear power plants.

For more details on the structure of the IEC SC 45A standard series, see item d) of this

introduction.
c) Recommendations and limitations regarding the application of the Standard

It is important to note that this Standard establishes no additional functional requirements for

safety systems.

d) Description of the structure of the IEC SC 45A standard series and relationships

with other IEC documents and other bodies documents (IAEA, ISO)

The top-level documents of the IEC SC 45A standard series are IEC 61513 and IEC 63046.

IEC 61513 provides general requirements for I&C systems and equipment that are used to

perform functions important to safety in NPPs. IEC 63046 provides general requirements for

electrical power systems of NPPs; it covers power supply systems including the supply

systems of the I&C systems. IEC 61513 and IEC 63046 are to be considered in conjunction

and at the same level. IEC 61513 and IEC 63046 structure the IEC SC 45A standard series

and shape a complete framework establishing general requirements for instrumentation,

control and electrical systems for nuclear power plants.

IEC 61513 and IEC 63046 refer directly to other IEC SC 45A standards for general topics

related to categorization of functions and classification of systems, qualification, separation,

---------------------- Page: 12 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
IEC/IEEE 62582-6:2019 © IEC/IEEE 2019 – 7 –

defence against common cause failure, control room design, electromagnetic compatibility,

cybersecurity, software and hardware aspects for programmable digital systems, coordination

of safety and security requirements and management of ageing. The standards referenced

directly at this second level should be considered together with IEC 61513 and IEC 63046 as

a consistent document set.

At a third level, IEC SC 45A standards not directly referenced by IEC 61513 or by IEC 63046

are standards related to specific equipment, technical methods, or specific activities. Usually

these documents, which make reference to second-level documents for general topics, can be

used on their own.

A fourth level extending the IEC SC 45 standard series, corresponds to the Technical Reports

which are not normative.

The IEC SC 45A standards series consistently implements and details the safety and security

principles and basic aspects provided in the relevant IAEA safety standards and in the

relevant documents of the IAEA nuclear security series (NSS). In particular this includes the

IAEA requirements SSR-2/1, establishing safety requirements related to the design of nuclear

power plants (NPPs), the IAEA safety guide SSG-30 dealing with the safety classification of

structures, systems and components in NPPs, the IAEA safety guide SSG-39 dealing with the

design of instrumentation and control systems for NPPs, the IAEA safety guide SSG-34

dealing with the design of electrical power systems for NPPs and the implementing guide

NSS17 for computer security at nuclear facilities. The safety and security terminology and

definitions used by SC 45A standards are consistent with those used by the IAEA.

IEC 61513 and IEC 63046 have adopted a presentation format similar to the basic safety

publication IEC 61508 with an overall life-cycle framework and a system life-cycle framework.

Regarding nuclear safety, IEC 61513 and IEC 63046 provide the interpretation of the general

requirements of IEC 61508-1, IEC 61508-2 and IEC 61508-4, for the nuclear application

sector. In this framework IEC 60880, IEC 62138 and IEC 62566 correspond to IEC 61508-3

for the nuclear application sector. IEC 61513 and IEC 63046 refer to ISO as well as to IAEA

GS-R part 2 and IAEA GS-G-3.1 and IAEA GS-G-3.5 for topics related to quality assurance

(QA). At level 2, regarding nuclear security, IEC 62645 is the entry document for the

IEC/SC 45A security standards. It builds upon the valid high level principles and main

concepts of the generic security standards, in particular ISO/IEC 27001 and ISO/IEC 27002; it

adapts them and completes them to fit the nuclear context and coordinates with the

IEC 62443 series. At level 2, IEC 60964 is the entry document for the IEC/SC 45A control

rooms standards and IEC 62342 is the entry document for the ageing management standards.

NOTE 1 It is assumed that for the design of I&C systems in NPPs that implement conventional safety functions

(e.g. to address worker safety, asset protection, chemical hazards, process energy hazards) international or

national standards would be applied.

NOTE 2 IEC/SC 45A domain was extended in 2013 to cover electrical systems. In 2014 and 2015 discussions

were held in IEC/SC 45A to decide how and where general requirements for the design of electrical systems were

to be considered. IEC/SC 45A experts recommended that an independent standard be developed at the same level

as IEC 61513 to establish general requirements for electrical systems. Project IEC 63046 is now launched to cover

this objective. When IEC 63046 is published, this NOTE 2 of the introduction of IEC/SC 45A standards will be

suppressed.
---------------------- Page: 13 ----------------------
oSIST prEN IEC/IEEE 62582-6:2021
– 8 – IEC/IEEE 62582-6:2019 © IEC/IEEE 2019
NUCLEAR POWER PLANTS ‒
INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY ‒
ELECTRICAL EQUIPMENT CONDITION MONITORING METHODS –
Part 6: Insulation resistance
1 Scope

This part of IEC/IEEE 62582 contains methods for condition monitoring of organic and

polymeric materials in instrumentation and control cables using insulation resistance

measurements in the detail necessary to produce accurate and reproducible results during

simulated accident conditions. It includes the requirements for the measurement system and

measurement procedure, and the reporting of the measurement results.

NOTE Measurement of insulation resistance during simulated accident conditions with the aim of determining the

lowest value during the accident in order to assess cable performance involves special requirements given in this

document. Methods for measurement under stable (non-accident) conditions are available in other international

standards, e.g. IEC 62631-3-3.
The different parts of the IEC/IEEE 62582 series are measurement stand
...