SIST IEC 60839-5-5:2002

Alarm systems - Part 5: Requirements for alarm transmission systems - Section 5: Requirements for digital communicator systems using the public switched telephone network

Specifies the requirements for digital communicator systems using the public switched telephone network which are additional to those specified in IEC 60839-5-1 and IEC 60839-5-2. Covers switched connections providing event driven signalling between an alarm system and a remote centre.

Systèmes d'alarme - Partie 5: Prescriptions pour les systèmes de transmission d'alarme - Section 5: Systèmes automatiques d'établissement de communications numériques utilisant le réseau téléphonique public commuté

Spécifie les prescriptions pour les systèmes automatiques d'établissement de communications numériques utilisant le réseau téléphonique public commuté, qui sont à ajouter aux prescriptions spécifiées dans la CEI 60839-5-1 et la CEI 60839-5-2. Couvre les liaisons commutées assurant la liaison des signaux d'événements entre un système d'alarme et un centre de surveillance à distance.

Alarm systems - Part 5: Requirements for alarm transmission systems - Section 5: Requirements for digital communicator systems using the public switched telephone network

General Information

• Status: Published
• Publication Date: 31-Aug-1995
• Withdrawal Date: 31-May-2002
• ICS: 13.320 - Alarm and warning systems
• ICS: 35.200 - Interface and interconnection equipment
• 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 60811-509:2012 - Electric and optical fibre cables - Test methods for non-metallic materials - Part 509: Mechanical tests - Test for resistance of insulations and sheaths to cracking (heat shock test)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST IEC 60839-5-5:2002
01-junij-2002
Alarm systems - Part 5: Requirements for alarm transmission systems - Section 5:
Requirements for digital communicator systems using the public switched
telephone network
Alarm systems - Part 5: Requirements for alarm transmission systems - Section 5:
Requirements for digital communicator systems using the public switched telephone
network
Systèmes d'alarme - Partie 5: Prescriptions pour les systèmes de transmission d'alarme
- Section 5: Systèmes automatiques d'établissement de communications numériques
utilisant le réseau téléphonique public commuté
Ta slovenski standard je istoveten z: IEC 60839-5-5
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
SIST IEC 60839-5-5:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST IEC 60839-5-5:2002

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SIST IEC 60839-5-5:2002
NORME CEI
INTERNATIONALE IEC
60839-5-5
INTERNATIONAL
Première édition
STAN DARD
First edition
1991-04
Systèmes d'alarme
Partie 5:
Prescriptions pour les systèmes de transmission
d'alarme
Section 5: Systèmes automatiques
d'établissement de communications numériques
utilisant le réseau téléphonique public commuté
Alarm systems
Part 5:
Requirements for alarm transmission systems
Section 5: Requirements for digital
communicator systems using the public
switched telephone network
Numéro de référence
Reference number
IEC
• CEI/IEC 60839-5-5: 1991

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

SIST IEC 60839-5-5:2002
Numéros des publications Numbering
Depuis le ter janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are
sont numérotées à partir de 60000. issued with a designation in the 60000 series.
Publications consolidées Consolidated publications
Les versions consolidées de certaines publications de
Consolidated versions of some IEC publications
la CEI incorporant les amendements sont disponibles. including amendments are available. For example,
Par exemple, les numéros d'édition 1.0, 1.1 et 1.2 edition numbers 1.0, 1.1 and 1.2 refer, respectively, to
indiquent respectivement la publication de base, la the base publication, the base publication incor-
publication de base incorporant l'amendement 1, et la
porating amendment 1 and the base publication
publication de base incorporant les amendements 1
incorporating amendments 1 and 2.
et 2.
Validité de la présente publication Validity of this publication
Le contenu technique des publications de la CEI est
The technical content of IEC publications is kept
constamment revu par la CEI afin qu'il reflète l'état under constant review by the IEC, thus ensuring that
actuel de la technique. the content reflects current technology.
Des renseignements relatifs à la date de reconfir- Information relating to the date of the reconfirmation
mation de la publication sont disponibles dans le
of the publication is available in the IEC catalogue.
Catalogue de la CEI.
Les renseignements relatifs à des questions à l'étude et Information on the subjects under consideration and
des travaux en cours entrepris par le comité technique work in progress undertaken by the technical
qui a établi cette publication, ainsi que la liste des committee which has prepared this publication, as well
publications établies, se trouvent dans les documents ci- as the list of publications issued, is to be found at the
dessous: following IEC sources:
• «Site web» de la CEI* • IEC web site*
• Catalogue des publications de la CEI • Catalogue of IEC publications
Publié annuellement et mis à jour Published yearly with regular updates
régulièrement (On-line catalogue)*
(Catalogue en ligne)*
• Bulletin de la CEI
•
IEC Bulletin
Disponible à la fois au «site web» de la CEI*
Available both at the IEC web site* and
et comme périodique imprimé
as a printed periodical
Terminologie, symboles graphiques
Terminology, graphical and letter
et littéraux
symbols
En ce qui concerne la terminologie générale, le lecteur
For general terminology, readers are referred to
se reportera à la CEI 60050: Vocabulaire Électro-
IEC 60050: International Electrotechnical Vocabulary
technique International (VEI).
(IEV).
Pour les symboles graphiques, les symboles littéraux
For graphical symbols, and letter symbols and signs
et les signes d'usage général approuvés par la CEI, le
approved by the IEC for general use, readers are
lecteur consultera la CEI 60027: Symboles littéraux à
referred to publications IEC 60027: Letter symbols to
utiliser en électrotechnique, la CEI 60417: Symboles
be used in electrical technology, IEC 60417: Graphical
graphiques utilisables sur le matériel. Index, relevé et
symbols for use on equipment. Index, survey and
compilation des feuilles individuelles, et la CEI 60617:
compilation of the single sheets and IEC 60617:
Symboles graphiques pour schémas.
Graphical symbols for diagrams.

* Voir adresse «site web» sur la page de titre.
* See web site address on title page.

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SIST IEC 60839-5-5:2002
NORME CEI
INTERNATIONALE IEC
60839 -5-5
INTERNATIONAL
Première édition
STAN
DARD
First edition
1991-04
Systèmes d'alarme
Partie 5:
Prescriptions pour les systèmes de transmission
d'alarme
Section 5: Systèmes automatiques
d'établissement de communications numériques
utilisant le réseau téléphonique public commuté
Alarm systems
Part 5:
Requirements for alarm transmission systems
Section 5: Requirements for digital
communicator systems using the public
switched telephone network
© 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 quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,
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
e-mail: [e-mail] Telefax: [phone] IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
IEC Me»cnyHapoAHaR 3/1eMTpoTexHH4ecnaR HOMHCCHA
Pour prix, voir catalogue en vigueur
• •
For price, see current catalogue

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SIST IEC 60839-5-5:2002
839-5-5 © CEI
- 2 -
SOMMAIRE
Pages
AVANT-PROPOS 4
Articles
1 Domaine d'application 6
2 Références normatives 6
3 Définitions 8
4 Considérations générales 8
8
5 Prescriptions
6 Méthodes d'essais 16

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SIST IEC 60839-5-5:2002
839-5-5 ©IEC - 3 -
CONTENTS
Page
FOREWORD 5
Clause
1 Scope 7
2 Normative references 7
3 Definitions 9
4 General considerations 9
5 Requirements 9
6 Test methods 17

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SIST IEC 60839-5-5:2002
- 4 - 839-5-5 © CEI
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
SYSTÈMES D'ALARME
Partie 5: Prescriptions pour les systèmes de
transmission d'alarme
Section 5: Systèmes automatiques d'établissement de
communications numériques utilisant le réseau téléphonique
public commuté
AVANT-PROPOS
1) Les décisions ou accords officiels de la CEI en ce qui concerne les questions techniques, préparés par des
Comités d'Etudes où sont représentés tous les Comités nationaux s'intéressant à ces questions, expriment
dans la plus grande mesure possible un accord international sur les sujets examinés.
2) Ces décisions constituent des recommandations internationales et sont agréées comme telles par les
Comités nationaux.
3) Dans le but d'encourager l'unification internationale, la CEI exprime le voeu que tous les Comités nationaux
adoptent dans leurs règles nationales le texte de la recommandation de la CEI, dans la mesure où les
conditions nationales le permettent. Toute divergence entre la recommandation de la CEI et la règle
nationale correspondante doit, dans la mesure du possible, être indiquée en termes clairs dans cette
dernière.
La présente section de la Norme internationale CEI 839-5 a été établie par le Comité
d'Etudes n° 79 de la CEI: Systèmes d'alarme.
Le texte de la présente section est issu des documents suivants:
Règle des Six Mois Rapport de vote Procédure des Deux Mois Rapport de vote
79(BC)22
79(BC)33 79(BC)40 79(BC)50
Les rapports de vote indiqués dans le tableau ci-dessus donnent toute information sur le
vote ayant abouti à l'approbation de cette section.

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SIST IEC 60839-5-5:2002
839-5-5 © IEC - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ALARM SYSTEMS
Part 5: Requirements for alarm transmission systems
Section 5: Requirements for digital communicator systems
using the public switched telephone network
FOREWORD
The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on
1)
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)22 79(CO)33 79(CO)40 79(CO)50
Full information on the voting for the approval of this section can be found in the Voting
Reports indicated in the above table.

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SIST IEC 60839-5-5:2002
839-5-5 © CEI
- 6 -
SYSTÈMES D'ALARME
Partie 5: Prescriptions pour les systèmes de
transmission d'alarme
Section 5: Systèmes automatiques d'établissement de
communications numériques utilisant le réseau téléphonique
public commuté
1 Domaine d'application
La présente section de la CEI 839-5 spécifie les prescriptions pour les systèmes
automatiques d'établissement de communications numériques utilisant le réseau
téléphonique public commuté, qui sont à ajouter aux prescriptions spécifiées dans la
CEI 839-5-1 et la CEI 839-5-2.
Elle couvre les liaisons commutées assurant la liaison des signaux d'événements entre un
système d'alarme et un centre de surveillance à distance. L'information sera transmise, à
l'aide de signaux codés, à des récepteurs automatiques situés dans des centres de
surveillance à distance. On peut inclure un moyen d'établir un canal sonore.
Le centre de surveillance à distance sera normalement un centre de réception d'alarme,
mais ce peut être une station satellite équipée d'un système de retransmission utilisant un
système de transmission d'alarme satisfaisant aux prescriptions de la CEI 839-5-4 relative
aux systèmes de transmission d'alarme utilisant des voies de transmission d'alarme spé-
cialisées.
2 Références normatives
Les normes suivantes contiennent des dispositions qui, par suite de la référence qui y est
faite, constituent des dispositions valables pour la présente section de la CEI 839-5. Au
moment de la publication, les éditions indiquées étaient en vigueur. Toute norme est su-
jette à révision et les parties prenantes aux accords fondés sur la présente section de la
CEI 839-5 sont invitées à rechercher la possibilité d'appliquer l'édition la plus récente des
normes indiquées ci-après. Les membres de la CEI et de l'ISO possèdent le registre des
Normes internationales en vigueur.
CEI 839-5-1: 1991, Systèmes d'alarme - Partie 5: Prescriptions pour les systèmes de
transmission d'alarme - Section 1: Prescriptions générales pour les systèmes.
CEI 839-5-2: 1991, Systèmes d'alarme - Partie 5: Prescriptions pour les systèmes de
transmission d'alarme - Section 2: Prescriptions générales pour les matériels utilisés.

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SIST IEC 60839-5-5:2002
839-5-5 © IEC - 7 -
ALARM SYSTEMS
Part 5: Requirements for alarm transmission systems
Section 5: Requirements for digital communicator systems
using the public switched telephone network
1 Scope
This section of IEC 839-5 specifies the requirements for digital communicator systems
using the public switched telephone network which are additional to those specified in
IEC 839-5-1 and IEC 839-5-2.
It covers switched connections providing event driven signalling between an alarm system
and a remote centre. The information will be transmitted using encoded signals to automa-
tic receivers at remote centres. A facility may be included to provide an audio channel.
The remote centre will normally be an alarm receiving centre but may be a satellite station
with onward transmission using an alarm transmission system meeting the requirements of
IEC 839-5-4 for alarm transmission systems using dedicated alarm transmission paths.
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
recent editions of the standards indicated below. Members of IEC and ISO maintain regis-
ters of currently valid International Standards.
IEC 839-5-1: 1991,
Alarm systems - Part 5: Requirements for alarm transmission systems -
Section 1: General requirements for systems.
IEC 839-5-2: 1991,
Alarm systems - Part 5: Requirements for alarm transmission systems -
Section 2: General requirements for equipment.

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SIST IEC 60839-5-5:2002
- 8 - 839-5-5 © CEI
3 Définitions
3.1 système automatique d'établissement de communications numériques:
Système de transmission d'alarme qui transfère l'information par signaux codés
numériques sur une voie de transmission établie par numérotation automatique via le
réseau téléphonique public commuté.
4 Considérations générales
Dans un système automatique d'établissement de communications numériques, la voie de
transmission n'est établie qu'au moment où l'événement doit être transmis.
La voie de transmission de bout en bout ne peut donc pas être surveillée continuellement,
bien que cela soit applicable à certains tronçons de la voie, par exemple la liaison reliant
les locaux surveillés au premier central et de l'échange final au centre de réception
d'alarme.
On peut également réaliser un certain niveau de contrôle par le lancement d'essai
d'émissions à intervalles adéquats.
La capacité d'établir une liaison par le réseau téléphonique public commuté dépendra de
l'état du réseau au moment où l'événement se produit. Pour augmenter les chances de
succès dans l'établissement d'une liaison, le système automatique d'établissement de
communications numériques peut effectuer plusieurs tentatives d'appel du centre de ré-
ception d'alarme ou peut appeler d'autres centres de réception d'alarme.
Une fois la liaison établie, aucune limite n'est imposée quant à l'information qui peut être
transmise, ou quant aux techniques qui peuvent être utilisées pour assurer l'intégrité de la
transmission.
Un moyen d'essai du système peut être prévu, comprenant le code d'identification du
transmetteur programmé et le numéro de téléphone du centre de réception d'alarme sans
impliquer le centre de réception d'alarme.
5 Prescriptions
5.1 Liaison vers le central de regroupement
5.1.1 Depuis les locaux surveillés
Un moyen doit être prévu pour contrôler l'intégrité des liaisons des locaux surveillés au
central de regroupement, et fournir un signal aux locaux surveillés pour indiquer l'état de
cette liaison. Le signal doit satisfaire aux prescriptions de 4.2 de la CEI 839-5-2.
La ligne téléphonique vers le central de regroupement peut être partagée avec d'autres
systèmes à l'intérieur des locaux surveillés, mais ne doit pas être partagée avec d'autres
services à l'extérieur des locaux surveillés.
Lorsque la ligne téléphonique n'est pas exclusivement réservée au système de transmis-
sion d'alarme, les prescriptions suivantes doivent être satisfaites.

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SIST IEC 60839-5-5:2002
839-5-5 ©
IEC - 9 -
3 Definitions
3.1 digital communicator system: Alarm transmission system which transfers infor-
mation by digital encoded signals over a transmission path established by automatic
dialling via the public switched telephone network.
4 General considerations
In a digital communicator system the transmission path is established only at the time an
event requires to be transmitted.
The end-to-end transmission path cannot therefore be continuously monitored although
this may apply to ce rtain sections of the path, for example, the link between the
supervised premises and the first exchange and from the final exchange to the alarm
receiving centre.
Alternatively, a degree of monitoring may be achieved by the initiation of test trans-
missions at suitable intervals.
The ability to establish a connection through the public switched telephone network will be
dependent on the state of the network at the time the event occurs. To increase the
probability of success in establishing a connection, the digital communicator may make
several attempts to dial the alarm receiving centre or may dial alternative alarm receiving
centres.
Once the connection is established, there is no restriction on the information which may
be transmitted or on the techniques which may be employed to ensure integrity of trans-
mission.
A facility may be provided for testing the system, including the programmed transmitter
identity code and telephone number of the alarm receiving centre without involving the
alarm receiving centre.
5 Requirements
5.1 Connection to local exchange
5.1.1
From supervised premises
A facility shall be provided for monito
...

IEC 60811-509
®

Edition 1.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Electric and optical fibre cables – Test methods for non-metallic materials –
Part 509: Mechanical tests – Test for resistance of insulations and sheaths to
cracking (heat shock test)

Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux
non-métalliques –
Partie 509: Essais mécaniques – Essai de résistance à la fissuration des
enveloppes isolantes et des gaines (essai de choc thermique)

IEC 60811-509:2012

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60811-509

®


Edition 1.0 2012-03




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











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

Part 509: Mechanical tests – Test for resistance of insulations and sheaths to

cracking (heat shock test)




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

non-métalliques –


Partie 509: Essais mécaniques – Essai de résistance à la fissuration des

enveloppes isolantes et des gaines (essai de choc thermique)












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX L


ICS 29.035.01; 29.060.20 ISBN 978-2-88912-985-0



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

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 60811-509  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 . 6
4.3 Sample and test piece preparation for insulations . 7
4.3.1 General . 7
4.3.2 Procedure . 7
4.3.3 Expression of results . 8
4.4 Sample and test piece preparation for sheaths . 8
4.4.1 General . 8
4.4.2 Procedure . 8
4.4.3 Measurements . 9
4.4.4 Expression of the results . 9
5 Test report. 9
Annex A (informative) Recommended performance requirement . 10
Bibliography . 11


Table 1 – Diameter of mandrel and number of turns for cores with overall diameter not
exceeding 12,5 mm . 7
Table 2 – Diameter of mandrel and number of turns for cores with overall diameter
exceeding 12,5 mm . 8

---------------------- Page: 4 ----------------------
60811-509  IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

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

Part 509: Mechanical tests –
Test for resistance of insulations
and sheaths to cracking (heat shock test)


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
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International Standard IEC 60811-509 has been prepared by IEC technical committee 20:
Electric cables.
This Part 509 of IEC 60811 cancels and replaces Clause 9 of IEC 60811-3-1:1985, 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.

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The text of this standard is based on the following documents:
FDIS Report on voting
20/1305/FDIS 20/1354/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.

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60811-509  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.

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

Part 509: Mechanical tests –
Test for resistance of insulations
and sheaths to cracking (heat shock test)



1 Scope
This Part 509 of IEC 60811 gives the procedure for the test for resistance of insulations and
sheaths to cracking at an elevated temperature.
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
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 with IEC 60811-100.
All the tests shall be carried out not less than 16 h after the extrusion of the insulating or
sheathing compounds
Unless otherwise specified, tests shall be carried out at room temperature.
NOTE In the absence of any requirement in the relevant cable standard, Annex A in this standard gives a
recommendation for the test conditions and test requirements.
4.2 Apparatus
The apparatus consists of the following parts:
a) an air oven capable of maintaining the temperature and tolerance specified;
b) mandrels of sufficient length made of metal or other suitable material.

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60811-509  IEC:2012 – 7 –
4.3 Sample and test piece preparation for insulations
4.3.1 General
Each core to be tested shall be represented by two samples of suitable length taken from two
places separated by at least 1 m. External coverings, if any, shall be removed from the
insulation.
The test pieces shall be prepared in one of the three following ways:
a) For cores with an overall diameter not exceeding 12,5 mm, each test piece shall consist of
a piece of core.
b) For cores with an overall diameter exceeding 12,5 mm and having an insulation thickness
not exceeding 5 mm, and for all sector-shaped cores, each test piece shall consist of a
strip taken from the insulation whose width shall be at least 1,5 times its thickness, but not
less than 4 mm. The strip shall be cut in the direction of the axis of the conductor. In the
case of sector-shaped cores, it shall be cut out of the “back” of the core.
c) For cores with an overall diameter exceeding 12,5 mm and a wall thickness exceeding
5,0 mm, each test piece shall consist of a strip cut in accordance with item b) and then
ground or cut (avoiding heating) on the outer surface, to a thickness between 4,0 mm and
5,0 mm. This thickness shall be measured on the thicker part of the strip, whose width
shall be at least 1,5 times the thickness.
4.3.2 Procedure
Each test piece shall be tautly wound and fixed, at ambient temperature, on a mandrel to form
a close helix, as given below:
a) For test pieces prepared in accordance with 4.3.1 a), and for flat cables, the diameter of
the mandrel and the number of turns shall be as given below in Table 1. The mandrel
diameter shall be based on the minor dimension of the core which is wound on with its
minor axis perpendicular to the mandrel.
Table 1 – Diameter of mandrel and number of turns
for cores with overall diameter not exceeding 12,5 mm
Mandrel diameter
External diameter of test piece
(maximum) Number of turns
mm
mm
Up to and including 2,5 5 6
Over 2,5 up to and including 4,5 9 6
Over 4,5 up to and including 6,5 13 6
Over 6,5 up to and including 9,5 19 4
Over 9,5 up to and including 12,5 40 2

b) For test pieces prepared in accordance with 4.3.1 b) and c), the diameter of the mandrel
and the number of turns shall be as given below in Table 2. In this case, the inner surface
of the test piece shall be in contact with the mandrel.

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Table 2 – Diameter of mandrel and number of turns
for cores with overall diameter exceeding 12,5 mm
Mandrel diameter
Thickness of test piece
(maximum) Number of turns
mm
mm
Up to and including 1 2 6
Over 1 up to and including 2 4 6
Over 2 up to and including 3 6 6
Over 3 up to and including 4 8 4
Over 4 up to and including 5 10 2

For the application of Tables 1 and 2, the diameter or thickness of each test piece shall be
measured by means of callipers or any other suitable measuring instrument.
Each test piece, on its mandrel, shall be placed in the oven, pre-heated to the temperature
specified in the relevant cable standard or, if no other is specified in the cable standard, to
that given in Annex A of this standard.
The test pieces shall be removed from the oven and allowed to attain approximately ambient
temperature. They shall then be examined while still on the mandrel.
4.3.3 Expression of results
The test pieces shall show no cracks when examined with normal or corrected vision without
magnification. Cracks at the fixing points shall not be recorded as a fault.
A crack is considered to be a crack if it goes through the whole insulation and/or sample
thickness.
4.4 Sample and test piece preparation for sheaths
4.4.1 General
Each sheath to be tested shall be represented by two samples of cable of suitable length
taken from two places, separated by at least 1 m. Any external coverings shall be removed.
a) For sheaths with an overall diameter not exceeding 12,5 mm, each test piece shall consist
of a piece of cable, except for polyethylene-insulated PVC sheathed cables.
b) For sheaths with an overall diameter exceeding 12,5 mm and with a wall thickness not
exceeding 5,0 mm, and for sheaths of polyethylene-insulated cables, each test piece shall
consist of a strip taken from the sheath, whose width shall be at least 1,5 times its
thickness but not less than 4 mm; the strip shall be cut in the direction of the axis of the
cable.
c) For sheaths with an overall diameter exceeding 12,5 mm and a wall thickness exceeding
5,0 mm, each test piece shall consist of a strip cut in accordance with item b) and then
ground or cut (avoiding heating) on the outer surface, to a thickness between 4,0 mm and
5,0 mm. This thickness shall be measured on the thicker part of the strip, whose width
shall be at least 1,5 times the thickness.
d) For flat cables, if the width of the cable does not exceed 12,5 mm, each test piece shall be
a piece of complete cable. If the width of the cable exceeds 12,5 mm, each test piece shall
consist of a strip taken from the sheath as specified in item b).
4.4.2 Procedure
Each test piece shall be tautly wound and fixed, at ambient temperature, on a mandrel to form
a close helix, as given below:

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60811-509  IEC:2012 – 9 –
a) For test pieces prepared in accordance with 4.3.1 a), and flat cables of width not
exceeding 12,5 mm in accordance with 4.4.1 d), the diameter of the mandrel and the
number of turns shall be as given in 4.4.1 a). The mandrel diameter shall be based on the
minor dimensions of the cable which is
...