Alarm systems. Part 2: Requirements for intruder alarm systems. Section Six: Passive infra-red detectors for use in buildings

Gives specific requirements and test procedures to ensure satisfactory performance and to minimize false alarms for passive infra-red detectors for use in intruder alarms in buildings. Should be used in conjunction with IEC 60839-1-1 and IEC 60839-2-2.

Systèmes d'alarme. Deuxième partie: Prescriptions pour les systèmes d'alarme anti-intrusion. Section six: Détecteurs infrarouges passifs utilisés dans les bâtiments

Donne les prescriptions spécifiques et les modalités d'essai afin d'assurer un fonctionnement adéquat et minimiser les fausses alarmes pour les détecteurs infrarouges passifs utilisés dans les systèmes d'alarme anti-intrusion dans les bâtiments. Doit être utilisé avec les CEI 60839-1-1 et 60839-2-2.

Alarm systems - Part 2: Requirements for intruder alarm systems - Section Six: Passive infra red detectors for use in buildings

General Information

Status
Published
Publication Date
31-Aug-1995
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Sep-1995
Due Date
01-Sep-1995
Completion Date
01-Sep-1995

Buy Standard

Standard
IEC 60839-2-6:1995
English language
12 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
Standard
IEC 60811-504:2012 - Electric and optical fibre cables - Test methods for non-metallic materials - Part 504: Mechanical tests - Bending tests at low temperature for insulation and sheaths
English and French language
20 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

SLOVENSKI STANDARD
SIST IEC 60839-2-6:1995
01-september-1995
Alarm systems - Part 2: Requirements for intruder alarm systems - Section Six:
Passive infra red detectors for use in buildings
Alarm systems. Part 2: Requirements for intruder alarm systems. Section Six: Passive
infra-red detectors for use in buildings
Systèmes d'alarme. Deuxième partie: Prescriptions pour les systèmes d'alarme anti-
intrusion. Section six: Détecteurs infrarouges passifs utilisés dans les bâtiments
Ta slovenski standard je istoveten z: IEC 60839-2-6
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
SIST IEC 60839-2-6:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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

SIST IEC 60839-2-6:1995

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

SIST IEC 60839-2-6:1995
NORME CEI
INTERNATIONALE IEC
60839-2-6
INTERNATIONAL
Première édition
STAN DARD
First edition
1990-01
Systèmes d'alarme
Partie 2:
Prescriptions pour les systèmes d'alarme
anti-intrusion
Section 6 – Détecteurs infrarouges passifs
utilisés dans les bâtiments
Alarm systems
Part 2:
Requirements for intruder alarm systems
Section 6 – Passive infra-red detectors
for use in buildings
© IEC 1990 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
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
IEC
MetxayHapoimasa 3nenrporexHH4ecnaR HoMuccian
Pour prix, voir catalogue en vigueur
• •
For price, see current catalogue

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

SIST IEC 60839-2-6:1995
839-2-6 © IEC - 3
CONTENTS
Page
FOREWORD
Clause
7
1 Scope
7
2 Normative references
3 Definitions 9
4 General considerations 9
5 Requirements 11
6 Test procedures 13
FIGURES 21

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

SIST IEC 60839-2-6:1995
839-2-6 ©
IEC - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ALARM SYSTEMS
Part 2: Requirements for intruder alarm systems
Section Six - Passive infra-red detectors for
use in buildings
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 standard has been prepared by IEC Technical Committee No. 79:
Alarm systems.
The text of this standard is based on the following documents:
Six Months' Rule
Report on Voting
79(CO)24 79(CO)31
Full information on the voting for the approval of this standard can be
found in the Voting Report indicated in the above table.

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

SIST IEC 60839-2-6:1995
839-2-6 © IEC - 7
ALARM SYSTEMS
Part 2: Requirements for intruder alarm systems
Section Six - Passive infra-red detectors for
use in buildings
1 Scope
This International Standard gives the specific requirements and test pro-
cedures for passive infra-red detectors for use in intruder alarm systems
installed in buildings. This standard is an addition to the general require-
ments for detectors for use in intruder alarm systems as specified in IEC
839-2-2; it shall also be used in conjunction with the standard for general
requirements of alarm systems, IEC 839-1-1. The detector may include
more than one sensor, but all sensors shall be in the same housing.
The object of this standard is to specify those requirements for passive
infra-red detectors which will ensure that they will perform satisfactorily
and minimize false alarms.
2 Normative references
The following standards contain provisions which, through reference in
this text, constitute provisions of this International Standard. At the time
of publication, the editions indicated were valid. All standards are subject
to revision, and parties to agreements based on this International Standard
are encouraged to investigate the possibility of applying the most recent
editions of the standards listed below. Members of IEC and ISO maintain
registers of currently valid International Standards.
809 (1985): Lamps for road vehicles. Dimensional, electrical and
luminous requirements.
839-1-1 (1988): Alarm systems, Part 1: General requirements. Section
One - General.
839-2-2 (1987): Part 2: Requirements for intruder alarm systems. Section
Two - Requirements for detectors - General.

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

SIST IEC 60839-2-6:1995
839-2-6 © IEC - 9 -
3 Definitions
For the purpose of this International Standard, the following definitions
apply in addition to those given in the general requirements.
3.1 Passive infra-red detector
A detector which generates an alarm condition in response to a change in
the received level of infra-red radiation caused by persons moving in the
area of detection coverage.
3.2 Sensitive sectors
Those sectors in the optical pattern of the detector which detect infra-red
radiation.
3.3 Area of detection coverage
The area within which a reference target moving at a constant distance
from the detector will cause an alarm condition.
3.4 Reference target
A device with infra-red emission characteristics similar to those of an
average person. For the purpose of this standard, this shall take the form
shown in figure 1.
3.5 Detection ranges
The detection ranges for given directions are the radial distance from the
detector to the outer boundary of the area of detection coverage.
3.6 Secondary reference target
A device with infra-red emission characteristics similar to those of a small
animal, such as a rodent. For the purpose of this standard, this shall take
the form of a cylinder 30 mm in diameter and 150 mm in length.
4 General considerations
The detector shall consist of one or more sensors and a processor. Where
additional sensors may be optionally added, the tests required in Clause 6
shall be carried out without these additional sensors. The detectors may
have means incorporated to vary the direction of the sensitive sectors.
These means shall be within the equipment container. Detectors may also
incorporate means to permit the measurement of the extent of the sensitive
sectors, but if these means prevent the detector from meeting the require-
ments of this standard, an indication shall be given whenever they are in
use.

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

SIST IEC 60839-2-6:1995
839-2-6 © I EC
5 Requirements
5. 1 .1
Signal processing
The detector shall be capable of detecting the lateral movement of the
reference target with respect to the detector within the area of detection
coverage at speeds varying from 0,3 m/s to 3 m/s and shall cause an alarm
condition within 3 m of unidirectional movement by the reference target, at
a constant distance from the detector.
5.1.2 Restoration following an alarm condition
Following an alarm condition and the cessation of the movement which
caused it, the detector shall return to its normal non-alarm condition
within 10 s.
5.1.3 Resistance to small targets
The sensitivity of the detector shall be such that an alarm condition shall
not be generated when a secondary reference target is moved on the floor
when the detector is mounted at the fixing height recommended by the
manufacturer.
5.1.4 Resistance to background temperature changes
Variations in the background temperature throughout the range +25 °C to
+40 °C, at a rate of 1 °C/min, shall not cause an alarm condition.
5.1.5 Resistance to vehicle headlights
The detector shall not generate an alarm condition as a result of being
illuminated by the equivalent of a vehicle headlight shining through glass
when tested in accordance with 6.2.5.
5.1.6 Resistance to turbulent air
Turbulent air above or below the ambient temperature around the detector
shall not cause an alarm condition when the detector is tested in accord-
ance with 6.2.6.
5.1.7 Tamper protection
Tamper protection shall be fitted and shall generate an alarm condition
when the container is opened sufficiently to give access to any controls or
mechanical fixing adjustments.
5.1.8 Cable protection
Where a sensor is in a separate housing to the processor, the connecting
cable shall be considered to be part of the detector. It shall be electrically
monitored in such a way that, if the disconnection or short-circuit of any
conductor(s) prevents alarm information or a tamper alarm being received
by the processor, the processor it
...

IEC 60811-504
®

Edition 1.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Electric and optical fibre cables – Test methods for non-metallic materials –
Part 504: Mechanical tests – Bending tests at low temperature for insulation
and sheaths

Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux
non-métalliques –
Partie 504: Essais mécaniques – Essai d’enroulement à basse température
pour les enveloppes isolantes et les gaines

IEC 60811-504:2012

---------------------- 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.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
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: csc@iec.ch.


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: csc@iec.ch.

---------------------- Page: 2 ----------------------
IEC 60811-504

®


Edition 1.0 2012-03




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











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

Part 504: Mechanical tests – Bending tests at low temperature for insulation

and sheaths




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

non-métalliques –


Partie 504: Essais mécaniques – Essai d’enroulement à basse température

pour les enveloppes isolantes et les gaines












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX K


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



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 – 60811-504  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 Bending test at low temperature for insulation . 7
4.2.1 Sampling and preparation of test pieces . 7
4.2.2 Apparatus . 7
4.2.3 Procedure . 7
4.2.4 Test conditions . 7
4.2.5 Evaluation of results . 8
4.3 Bending test at low temperature for sheaths . 8
4.3.1 Sampling and preparation of test pieces . 8
4.3.2 Apparatus, procedure and test conditions . 8
4.3.3 Evaluation of results . 8
5 Test report. 8
Bibliography . 10

Figure 1 – Cold bend test apparatus . 9

Table 1 –Rotations of mandrel . 7

---------------------- Page: 4 ----------------------
60811-504  IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

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

Part 504: Mechanical tests –
Bending tests at low temperature for insulation and sheaths


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 60811-504 has been prepared by IEC technical committee 20:
Electric cables.
This Part 504 of IEC 60811 cancels and replaces 8.1 and 8.2 of IEC 60811-1-4:1985, 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.

---------------------- Page: 5 ----------------------
– 4 – 60811-504  IEC:2012
The text of this standard is based on the following documents:
FDIS Report on voting
20/1300/FDIS 20/1349/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 ----------------------
60811-504  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 – 60811-504  IEC:2012
ELECTRIC AND OPTICAL FIBRE CABLES –
TEST METHODS FOR NON-METALLIC MATERIALS –

Part 504: Mechanical tests –
Bending tests at low temperature for insulation and sheaths



1 Scope
This Part 504 of IEC 60811 gives the procedure for performing bending tests at low
temperature on extruded insulations and sheaths.
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 60811-505, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Elongation at low temperature for insulations and sheaths
3 Terms and definitions
For the purposes of this document, the 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 or cross-linking of the
insulating or sheathing compounds.
Tests shall be carried out at the temperature specified in the relevant cable standard.
For tests on the insulation, the test is intended for insulated conductors of circular cross-
section having an external diameter up to and including 12,5 mm and for sector-shaped cores
where it is not possible to prepare dumb-bells.
For tests on sheaths, the test is intended for cables with an overall diameter up to and
including 12,5 mm; and for flat cables, with a major axis dimension up to and including
12,5 mm.
If required by the relevant cable standard the test shall also be carried out on larger cables.
Note that equipment may need to be modified in accordance with the cable standard.
Otherwise, the insulation and sheath of larger cables shall be subjected to the elongation test
described in IEC 60811-505.

---------------------- Page: 8 ----------------------
60811-504  IEC:2012 – 7 –
4.2 Bending test at low temperature for insulation
4.2.1 Sampling and preparation of test pieces
Each core to be tested shall be represented by two samples of suitable length. After removal
of the coverings, if any, the samples shall be used as test pieces.
4.2.2 Apparatus
The apparatus recommended for this test is represented in Figure 1, with explanations. It
consists essentially of one revolving mandrel and guiding devices for the test pieces.
Other single-mandrel apparatus, substantially equivalent to the one represented in Figure 1,
may also be used.
The apparatus shall be located in a suitable low temperature cabinet before and during the
test.
4.2.3 Procedure
The test piece shall be fixed in the apparatus, as shown in Figure 1.
The apparatus with the test piece in position shall be maintained in the suitable low
temperature cabinet at the specified temperature for a period of not less than 16 h. The
cooling period of 16 h includes the time necessary for cooling down the apparatus.
If the apparatus has been pre-cooled, a shorter cooling period is permissible, but not less
than 4 h at test temperature. If the apparatus and test specimens have been pre-cooled, a
cooling time of 1 h after each test piece has been fixed to the apparatus is sufficient.
At the end of the prescribed time, the mandrel shall be rotated, in accordance with the
conditions specified in 4.2.4, the test piece being guided so that it is bent tautly round the
mandrel in a close helix. In the case of sector-shaped test pieces, the circular “back” part of
the test piece shall be in contact with the mandrel.
Afterwards, the test piece, still on the mandrel, shall be allowed to attain approximately
ambient temperature.
4.2.4 Test conditions
The cooling and test temperature shall be as specified for the type of compound in the
relevant standard for the type of cable.
The diameter of the mandrel shall be between 4 and 5 times the diameter of the test piece.
The mandrel shall be uniformly rotated at a rate of one revolution in about 5 s and the number
of turns shall be as specified in Table 1:
Table 1 –Rotations of mandrel
Overall diameter, d, of the test piece
Number of turns
mm
10
< d ≤ 2,5
6
2,5 < d ≤ 4,5
4,5 < d ≤ 6,5 4
6,5 < d ≤ 8,5 3
8,5 < d 2

---------------------- Page: 9 ----------------------
– 8 – 60811-504  IEC:2012
The actual diameter of each test piece shall be measured by a vernier calliper, a micrometer
or a measuring tape. For sector-shaped test pieces, the minor axis is taken as the parameter
equivalent to the diameter for determining the mandrel diameter and the number of turns.
For flat cables, the mandrel diameter shall be based on the minor axis dimension of the test
piece, which is wound on with its minor axis perpendicular to the mandrel.
4.2.5 Evaluation of results
At the end of the procedure described in 4.2.3, the test pieces shall be examined while still on
the mandrel. The insulation of both test pieces shall not show any cracks when examined with
normal or corrected vision, without magnification.
4.3 Bending test at low temperature for sheaths
4.3.1 Sampling and preparation of test pieces
For each sheath to be tested, two pieces of cable of suitable length shall be taken.
B
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.