SIST IEC 60839-5-2:2002

Alarm systems - Part 5: Requirements for alarm transmission systems - Section 2: General requirements for equipment

Specifies the general requirements for equipment used in alarm transmission systems. Does not specify the equipment used to display the information at the alarm receiving centre or the installation of the equipment.

Systèmes d'alarme - Partie 5: Prescriptions pour les systèmes de transmission d'alarme - Section 2: Prescriptions générales pour les matériels utilisés

Spécifie les prescriptions générales relatives aux matériels utilisés dans les systèmes de transmission d'alarme. Ne s'applique pas aux matériels utilisés qui donnent l'information au niveau des centrales de réception d'alarme ou à l'installation de ces matériels.

Alarm systems - Part 5: Requirements for alarm transmission systems - Section 2: General requirements for equipment

General Information

• Status: Published
• Publication Date: 31-Aug-1995
• Withdrawal Date: 31-May-2002
• ICS: 13.320 - Alarm and warning systems
• Technical Committee: EAL - Alarm systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2002
• Due Date: 01-Jun-2002
• Completion Date: 01-Jun-2002
• Directive: TP200 - Pravilnik o določitvi varnostnih standardov poslovanja sodišč
• Ref Project: IEC 60811-507:2012 - Electric and optical fibre cables - Test methods for non-metallic materials - Part 507: Mechanical tests - Hot set test for cross-linked materials

Standards Content (Sample)

SLOVENSKI STANDARD
SIST IEC 60839-5-2:2002
01-junij-2002
Alarm systems - Part 5: Requirements for alarm transmission systems - Section 2:
General requirements for equipment
Alarm systems - Part 5: Requirements for alarm transmission systems - Section 2:
General requirements for equipment
Systèmes d'alarme - Partie 5: Prescriptions pour les systèmes de transmission d'alarme
- Section 2: Prescriptions générales pour les matériels utilisés
Ta slovenski standard je istoveten z: IEC 60839-5-2
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
SIST IEC 60839-5-2:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST IEC 60839-5-2:2002

---------------------- Page: 2 ----------------------

SIST IEC 60839-5-2:2002
NORME CEI
INTERNATIONALE IEC
60839-5-2
INTERNATIONAL
Première édition
STAN DARD
First edition
1991-04
Systèmes d'alarme
Partie 5:
Prescriptions pour les systèmes de transmission
d'alarme
Section 2: Prescriptions générales
pour
les matériels utilisés
Alarm systems
Part 5:
Requirements for alarm transmission systems
Section 2: General requirements for equipment
© IEC 1991 Droits de reproduction réservés — Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous forme que ce soit aucun any form or by any means, electronic or mechanical,
quelque et par
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
IEC McNSayHapogHae 3rteKTpOTexHH4eCHaR HOMHCCHA
Pour prix, voir catalogue en vigueur
• For price, see current catalogue

---------------------- Page: 3 ----------------------

SIST IEC 60839-5-2:2002
839-5-2 © IEC - 3 -
CONTENTS
Page
FOREWORD 5
Clause
1 Scope 7
2 Normative references 7
3 General considerations 9
4 Requirements 9
5 Electrical safety and protection 13
6 Environmental requirements 13
7 Test methods 15
8 Marking 23
9 Product specification 23

---------------------- Page: 4 ----------------------

SIST IEC 60839-5-2:2002
839-5-2 © IEC - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ALARM SYSTEMS
Part 5: Requirements for alarm transmission systems
Section 2: General requirements for equipment
FOREWORD
1)
The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
2)
They have the form of recommendations for international use and they are accepted by the National
Committees in that sense.
3) in order to promote international unification, the IEC expresses the wish that all National Committees
should adopt the text of the IEC recommendation for their national rules in so far as national conditions will
permit. Any divergence between the IEC recommendation and the corresponding national rules should, as
far as possible, be clearly indicated in the latter.
This section of the International Standard IEC 839-5 has been prepared by IEC,Technical
Committee No. 79: Alarm systems.
The text of this section is based on the following documents:
Six Months' Rule Report on Voting Two Months' Procedure
Report on Voting
79(CO)20
79(00)30 79(00)38 79(00)48
Full information on the voting for the approval of this section can be found in the Voting
Report
s indicated in the above table.

---------------------- Page: 5 ----------------------

SIST IEC 60839-5-2:2002
- 7 -
839-5-2 © IEC
ALARM SYSTEMS
Part 5: Requirements for alarm transmission systems
Section 2: General requirements for equipment
1 Scope
This section of IEC 839-5 specifies the general requirements for equipment used in alarm
transmission systems.
It does not specify the equipment used to display the information at the alarm receiving
centre or the installation of the equipment.
Additional requirements for specific types of alarm transmission systems are given in
separate sections as part of IEC 839-5. This does not preclude the use of any alarm trans-
mission system not covered by one of these specific sections, provided that it meets these
general requirements.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute
provisions of this section of IEC 839-5. At the time of publication, the editions indicated
were valid. All standards are subject to revision, and parties to agreements based on this
section of IEC 839-5 are encouraged to investigate the possibility of applying the most re-
cent editions of the standards indicated below. Members of IEC and ISO maintain regis-
ters of currently valid International Standards.
IEC 68, Environmental testing.
Principles concerning the safety of equipment electrically connected
IEC Guide 105: 1985,
to a telecommunications network.
IEC 529: 1989, Degrees of protection provided by enclosures (IP Code).
IEC 664: 1980, Insulation co-ordination within low-voltage systems including clearances
and creepage distances for equipment.
IEC 801, Electromagnetic compatibility for industrial-process measurement and control
equipment.
IEC 839-1-1: 1988, Alarm systems - Part 1: General requirements - Section One: General.
IEC 839-1-3: 1988, Alarm systems - Part 1: General requirements - Section Three:
Environmental testing.

---------------------- Page: 6 ----------------------

SIST IEC 60839-5-2:2002
839-5-2 © IEC - 9 -
Alarm systems - Part 5: Requirements for alarm transmission systems
IEC 839-5-1: 1991,
- Section 1: General requirements for systems.
CCITT Protection against interference, Vol. IX: 1989,
- Recommendation K.21: Resistivity of subscribers' terminals to overvoltages and
overcurrents.
CCITT Data communication over the telephone network, Vol. VIII, Fascicle VIII.1: 1985.
- Recommendation V.24: List of definitions for interchange circuits between data
terminal equipment and data circuit-terminating equipment.
- Recommendation V.28: Electrical characteristics for unbalanced double-current
interchange circuits
- Recommendation V.31 bis: Electrical characteristics for single-current interchange
circuits using optocouplers.
3 General considerations
Where use is made of public networks, the relevant recommendations (CCITT, CCIR, etc.)
are applicable. Where appropriate, reference should also be made to the ISO Open
System Interconnection (OSI) layered architecture model.
4 Requirements
4.1 Equipment at the supervised premises
4.1.1 Equipment container
Where the equipment is supplied in its own container, it shall meet the requirements of
Class IP3X as described in IEC 529.
4.2 Interface with the alarm transmission system
Alarm transmission equipment installed at the supervised premises and designed to inter-
face with alarm systems from different suppliers shall provide an alarm system inte rface
meeting the requirements of 4.2.1 or 4.2.2.
Alarm transmission equipment installed at the alarm receiving centre and designed to inter-
face with annunciation equipment from different suppliers shall provide a terminal inte rface
meeting the requirements of 4.2.1 or 4.2.2.
4.2.1 D.C. switching at the interface
The alarm transmission system shall not respond to input signals at the interface lasting
less than 50 ms and shall respond to input signals lasting more than 200 ms.
The alarm transmission system shall provide output signals at the inte rface of a duration
greater than 200 ms.

---------------------- Page: 7 ----------------------

SIST IEC 60839-5-2:2002
IEC -
839-5-2 © 11 -
The electrical inte rface shall be either:
1) an electrical interface in accordance with the CCITT V.31 bis Recommendation, or
the alarm transmission system shall transmit an alarm condition when a d.c. voltage
2)
of either greater than 10,2 V in a nominal 12 V system or 20,4 V in a nominal 24 V
system is applied to the input.
The alarm condition shall cease to be transmitted when the input current is reduced below
2,5 mA for longer than 1 s.
An alarm or fault condition shall not be transmitted when a monitoring current of greater
than 2,5 mA, but less than 10 mA, is flowing through the input circuit.
The input impedance of the alarm transmission system shall not exceed 1 ka.
4.2.2 Serial data interface
Functional interface
a)
ace at physical level shall follow the CCITT V.24 Recommendation.
The functional inte rf
NOTE - This is the same as RS232C.
b) Electrical interface
The electrical inte rface shall follow the CCITT V.28 Recommendation.
Monitoring of the connection to the alarm transmission system
4.3
4.3.1 D. C. switching at the interface
With all of the inputs from the alarm system in their normal condition (non-alarm), the
alarm transmission equipment shall monitor the connections to the alarm system and shall
generate an alarm or fault condition within 1 s in the event of a short of all of the conduc-
tors or an open circuit of any conductor that would inhibit the transmission of an alarm
from the alarm system.
NOTE - It is recommended that failure of this connection should also be monitored by the alarm system.
Details of the method of monitoring, and of any restrictions, shall be given in the product
specification.
4.3.2 Serial data interface
The integrity of the interface to the alarm system shall be monitored by the regular trans-
mission of a status message in both directions and an alarm or fault signal shall be genera-
ted within 1 s in the alarm system and in the alarm transmission system in the event of a
failure to communicate.
Facilities shall be provided to allow the monitoring of the terminal inte rface by the annun-
ciation equipment.

---------------------- Page: 8 ----------------------

SIST IEC 60839-5-2:2002
839-5-2 © IEC -13 -
Details of the method of monitoring, and of any restrictions, shall be given in the product
specification.
5 Electrical safety and protection
Protection of persons and resistibility of alarm transmission equipment against electrical
shock, fire and consequential hazards shall be provided in accordance with IEC relevant
standards and with IEC Guide 105.
Tests related to mains voltage connection points shall be designed in accordance with IEC
664 to withstand conditions occurring on the mains supply connection.
The equipment shall include protection against power induction, power contact and the
effects of lightning such that it meets the requirements of the CCITT K.21
Recommendation for categories without the addition of agreed primary protection.
6 Environmental requirements
6.1 All equipment
The equipment shall continue to meet the requirements of this section of IEC 839-5 when
subjected to the following environmental conditions and shall not generate false alarms or
fault messages or modify transmitted messages.
The environmental requirements are intended to apply to equipment for use in weather
protected locations. If the equipment is intended for use in outdoor installations, the tests
listed below shall be carried out using severity levels appropriate for such applications.
6.1.1 Dry
heat
Dry heat of +40 °C for 16 h as described in IEC 839-1-3, test A-1 (severity 3).
6.1.2 Cold
Low temperature of +5 °C for 16 h as described in IEC 839-1-3, test A-2 (severity 2).
6.1.3
Electrical spikes
Electrical spikes as described in IEC 839-1-3, test A-9 (severity 4).
6.1.4
Electrostatic discharges
Electrostatic discharges as described in IEC 839-1-3, test A-11 (severity 3).
6.1.5
Electromagnetic fields
Electromagnetic fields as described in IEC 839-1-3, test A-13 (severity 3).

---------------------- Pag
...

IEC 60811-507
®

Edition 1.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Electric and optical fibre cables – Test methods for non-metallic materials –
Part 507: Mechanical tests – Hot set test for cross-linked materials

Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux
non-métalliques –
Partie 507: Essais mécaniques – Essai d’allongement à chaud pour les
matériaux réticulés

IEC 60811-507:2012

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2012 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.


Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch

About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:

IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [e-mail].


A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.

Liens utiles:

Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: [e-mail].

---------------------- Page: 2 ----------------------
IEC 60811-507

®


Edition 1.0 2012-03




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Electric and optical fibre cables – Test methods for non-metallic materials –

Part 507: Mechanical tests – Hot set test for cross-linked materials




Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux

non-métalliques –

Partie 507: Essais mécaniques – Essai d’allongement à chaud pour les


matériaux réticulés













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX K


ICS 29.035.01; 29.060.20 ISBN 978-2-88912-983-6



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: 3 ----------------------
– 2 – 60811-507  IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Test method . 6
4.1 General . 6
4.2 Apparatus . 7
4.3 Sample and test piece preparation . 7
4.4 Procedure . 7
4.5 Expression of the results . 8
5 Test report. 8
Annex A (informative) Recommended performance requirement . 9
Bibliography . 10

---------------------- Page: 4 ----------------------
60811-507  IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTRIC AND OPTICAL FIBRE CABLES –
TEST METHODS FOR NON-METALLIC MATERIALS –

Part 507: Mechanical tests –
Hot set test for cross-linked materials


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 60811-507 has been prepared by IEC technical committee 20:
Electric cables.
This Part 507 of IEC 60811 cancels and replaces Clause 9 of IEC 60811-2-1:1998, which is
withdrawn. Full details of the replacements are shown in Annex A of IEC 60811-100:2012.
There are no specific technical changes with respect to the previous edition, but see the
Foreword to IEC 60811-100: 2012.

---------------------- Page: 5 ----------------------
– 4 – 60811-507  IEC:2012
The text of this standard is based on the following documents:
FDIS Report on voting
20/1303/FDIS 20/1352/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.
This part of IEC 60811 shall be used in conjunction with IEC 60811-100.
A list of all the parts in the IEC 60811 series, published under the general title Electric and
optical fibre cables – Test methods for non-metallic materials, can be found on the IEC
website.
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.

---------------------- Page: 6 ----------------------
60811-507  IEC:2012 – 5 –
INTRODUCTION
The IEC 60811 series specifies the test methods to be used for testing non-metallic materials
of all types of cables. These test methods are intended to be referenced in standards for
cable construction and for cable materials.
NOTE 1 Non-metallic materials are typically used for insulating, sheathing, bedding, filling or taping within cables.
NOTE 2 These test methods are accepted as basic and fundamental and have been developed and used over
many years principally for the materials in all energy cables. They have also been widely accepted and used for
other cables, in particular optical fibre cables, communication and control cables and cables for ships and offshore
applications.

---------------------- Page: 7 ----------------------
– 6 – 60811-507  IEC:2012
ELECTRIC AND OPTICAL FIBRE CABLES –
TEST METHODS FOR NON-METALLIC MATERIALS –

Part 507: Mechanical tests –
Hot set test for cross-linked materials



1 Scope
This Part 507 of IEC 60811 gives the procedure for the hot set test, which typically applies to
cross-linkable compounds used for insulating and sheathing materials.
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 60811-100:2012, Electric and optical fibre cables – Test methods for non-metallic
materials – Part 100: General
IEC 60811-201, Electric and optical fibre cables – Test methods for non-metallic materials

Part 201: General tests – Measurement of insulation thickness
IEC 60811-202, Electric and optical fibre cables – Test methods for non-metallic materials

Part 202: General tests – Measurement of thickness of non-metallic sheaths
IEC 60811-401, Electric and optical fibre cables – Test methods for non-metallic materials
Part 401: Miscellaneous tests – Thermal ageing methods – Ageing in an air oven
IEC 60811-501, Electric and optical fibre cables – Test methods for non-metallic materials
Part 501: Mechanical tests – Tests for determining the mechanical properties of insulating and

sheathing compounds
3 Terms and definitions
For the purposes of this document , the terms and definitions given in IEC 60811-100 apply.
4 Test method
4.1 General
This part of IEC 60811 shall be used in conjunction IEC 60811-100.
This standard gives the method for the hot set test, which applies to crosslinked compounds.
All the tests shall be carried out not less than 16 h after the extrusion or crosslinking of the
insulating or sheathing compounds.

---------------------- Page: 8 ----------------------
60811-507  IEC:2012 – 7 –
4.2 Apparatus
The apparatus consists of the following parts:
a) An oven capable of maintaining the temperature and tolerance specified.
b) Grips shall be provided, such that each test piece can be suspended from an upper grip in
the oven and weights attached to a lower grip attached to the test piece.
NOTE When testing tubular test pieces, the fixing of the grips should not cause air-tight sealing. This can be
achieved by inserting at least on one end a short piece of metal pin, having slightly smaller dimensions than those
of the inner side of the test piece.
4.3 Sample and test piece preparation
A sample of the cable or cord, or of the sheath removed from the cable, or samples of core,
cut into pieces of sufficient length, shall be taken, preferably from positions close to that from
which the samples for the tensile tests without ageing were taken, in accordance with
IEC 60811-501.
Test pieces, dumb-bell or tubular, shall be prepared according to IEC 60811-501.
Two test pieces of sheath and of insulation from each core, after they have been prepared
and their cross-sectional areas measured, as specified in the test method of IEC 60811-201
and/or IEC 60811-202. Dumb-bell test pieces shall be prepared from the inner part of the
sheath and of the insulation after any ridges and/or semi-conducting layers have been
removed.
The thickness shall be not less than 0,8 mm and not more than 2,0 mm. If a thickness of
0,8 mm cannot be obtained from the original sample, a minimum thickness of less than
0,8 mm is permitted; however, the greatest possible thickness shall be used.
The central 20 mm for the larger dumb-bells, or 10 mm for the smaller dumb-bells, shall be
marked on each test piece.
NOTE A thickness of less than 0,8 mm is only permitted where the specified thickness in the applicable cable
standard is less than 0,8 mm.
4.4 Procedure
Test conditions are specified in the relevant cable standard.
NOTE 1 In the absence of any requirement in the relevant cable standard, Annex A of this standard gives a
recommendation for test temperature and requirements.
The test pieces shall be suspended in the oven and the weights attached to the lower grip to
exert a force of the value specified for the material in the relevant cable standard. This
process shall be carried out as quickly as possible so that the oven door is open for the
minimum time.
After the oven has regained its temperature, the test pieces shall be held in the oven for a
further 10 min. The distance between the marker lines shall then be measured so that the
elongation can be calculated. If the oven does not have a window and the oven door has to be
opened to make the measurement, the measurement shall be made not more than 30 s after
opening the door.
In case of dispute, the test shall be carried out in an oven with a window and the
measurement made without opening the door.
The tensile force shall then be removed from the test pieces (by cutting the test pieces at the
lower grip), and the test pieces left to recover in the oven. The test pieces shall be held in the
oven for 5 min or until the specified temperature is regained, whichever is the longer.

---------------------- Page: 9 ----------------------
– 8 – 60811-507  IEC:2012
The test pieces shall then be removed from the oven and allowed to cool slowly to ambient
temperature, after which the distance between the marker lines shall be measured again.
NOTE 2 Adequate precautions should be taken to avoid physical danger from the handling of the heated grips,
weights and test pieces.
4.5 Expression of th
...