IEC 60811-411:2012

Electric and optical fibre cables - Test methods for non-metallic materials - Part 411: Miscellaneous tests - Low-temperature brittleness of filling compounds

IEC 60811-411:2012 gives the procedure to evaluate lower temperature brittleness which typically applies to filling compounds used for communication and optical fibre cables. IEC 60811-411:2012 cancels and replaces Clause 6 of IEC 60811-5-1:1990, which is withdrawn.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.
This publication is to be read in conjunction with IEC 60811-100:2012.

Câbles électriques et à fibres optiques - Méthodes d'essai pour les matériaux non-métalliques - Partie 411: Essais divers - Fragilité à basse température des matières de remplissage

La CEI 60811-411:2012 donne la méthode pour évaluer la fragilité à basse température, qui s'applique généralement aux matières de remplissage utilisées pour les câbles de communication et à fibres optiques. La CEI 60811-411:2012 annule et remplace l'Article 6 de la CEI 60811-5-1:1990, qui est supprimée. L'ensemble des informations relatives aux remplacements figure dans l'Annexe A de la CEI 60811-100:2012. Aucune modification technique n'a été effectuée par rapport à l'édition précédente; voir cependant l'avant-propos de la CEI 60811-100:2012.
Cette publication doit être lue conjointement avec la CEI 60811-100:2012.

Alarm systems - Part 1: General requirements - Section Four: Code of practice

General Information

• Status: Published
• Publication Date: 11-Mar-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 13.320 - Alarm and warning systems
• ICS: 29.035.01 - Insulating materials in general
• ICS: 29.060.20 - Cables
• Technical Committee: TC 20 - Electric cables
• Drafting Committee: WG 17 - TC 20/WG 17
• Current Stage: PPUB - Publication issued
• Start Date: 31-Mar-2012
• Completion Date: 12-Mar-2012
• Ref Project: SIST IEC 60839-1-4:1995 - Alarm systems. Part 1: General requirements. Section Four: Code of practice

Relations

• Replaces: IEC 60811-5-1:1990/AMD1:2003 - Amendment 1 - Insulating and sheathing materials of electric and optical cables - Common test methods - Part 5-1: Methods specific to filling compounds - Drop point - Separation of oil - Lower temperature brittleness - Total acid number - Absence of corrosive components - Permittivity at 23 °C - DC resistivity at 23 °C and 100 °C
• Effective Date: 05-Sep-2023
• Replaces: IEC 60811-5-1:1990 - Common test methods for insulating and sheathing materials of electrical cables - Part 5: Methods specific to filling compounds - Section 1: Drop point - Separation of oil - Lower temperature brittleness - Total acid number - Absence of corrosive components - Permittivity at 23 °C - D.C. resistivity at 23 °C and 100 °C
• Effective Date: 05-Sep-2023

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Alarm systems - Part 1: General requirements - Section Four: Code of practiceSystèmes d'alarme. Première partie: Prescriptions générales. Section quatre: Règles de l'artAlarm systems. Part 1: General requirements. Section Four: Code of practice13.320Alarmni in opozorilni sistemiAlarm and warning systemsICS:Ta slovenski standard je istoveten z:IEC 60839-1-4SIST IEC 60839-1-4:1995en01-september-1995SIST IEC 60839-1-4:1995SLOVENSKI
STANDARD
NORMECEIINTERNATIONALEIECINTERNATIONAL60839-1-4STAN DARDPremière éditionFirst edition1989-07Systèmes d'alarmePremière partie:Prescriptions généralesSection quatre — Règles de l'artAlarm systemsPart 1:General requirementsSection Four — Code of practice© IEC 1989 Droits de reproduction réservés — Copyright - all rights reservedAucune partie de cette publication ne peut être reproduite niNo part of this publication may be reproduced or utilized inutilisée sous quelque forme que ce soit et par aucunany form or by any means, electronic or mechanical,procédé, électronique ou mécanique, y compris la photo-including photocopying and microfilm, without permission incopie et les microfilms, sans l'accord écrit de l'éditeur.writing from the publisher.International Electrotechnical Commission3, rue de Varembé Geneva, SwitzerlandTelefax: [phone]e-mail: [e-mail] web site http: //www.iec.chIEC•Commission Electrotechnique InternationaleInternational Electrotechnical CommissionMemityHapoAHaR 3neKTpoTexHH4ecKan HOMHCCHA•CODE PRIXPRICE CODEPour prix, voir catalogue en vigueurFor price, see current catalogueSIST IEC 60839-1-4:1995

839-1-4 © IEC- 3 -CONTENTSPageFOREWORD 5PREFACE 5Clause1.Scope 72.Definitions 73.General considerations 74.System requirements 115.Combined systems 156.Installation 217.Operation 238.Action in event of alarm 259.Maintenance 2510.Emergency service 2711.Records 27SIST IEC 60839-1-4:1995

839-1-4 © IEC- 5 -INTERNATIONAL ELECTROTECHNICAL COMMISSIONALARM SYSTEMSPart 1: General requirementsSection Four - Code of practiceFOREWORD1)The formal decisions or agreements of the IEC on technical matters,prepared by Technical Committees on which all the National Committeeshaving a special interest therein are represented, express, as nearlyas possible, an international consensus of opinion on the subjectsdealt with.2)They have the form of recommendations for international use and theyare accepted by the National Committees in that sense.3)In order to promote international unification, the IEC expresses thewish that all National Committees should adopt the text of the IECrecommendation for their national rules in so far as national con-ditions will permit. Any divergence between the IEC recommendation andthe corresponding national rules should, as far as possible, be clearlyindicated in the latter.PREFACEThis 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' RuleReport on Voting79(C0)1779(CO)29Full information on the voting for the approval of this standard can befound in the Voting Report indicated in the above table.The following IEC publications are quoted in this standard:Publications Nos. 839-1-1 (1988): Alarm systems, Part 1: General require-ments, Section One - General.849 (1989): Sound systems for emergency purposes.Other publication quoted:ISO 7731 (1986): Danger signals for work placesAuditory danger signals.SIST IEC 60839-1-4:1995

839-1-4 © IEC- 7 -ALARM SYSTEMSPart 1: General requirementsSection Four - Code of practice1.ScopeThis standard applies to the design, installation, commissioning,operation, maintenance, tests and records of manual and automaticalarm systems employed for the security and safety of persons andproperty.It does not cover remote centres. It should be used in conjunctionwith the standard for general requirements for alarm systems,IEC 839-1-1.2.DefinitionsFor the purpose of this standard, the definitions in the standard forgeneral requirements for alarm systems (IEC 839-1-1) apply togetherwith the following:2.1 Level of riskThe level of risk is the degree of hazard to persons or propertiesthat exists in their environment.2.2 Level of protectionResultant of technical and organizational measures employed for thesecurity or safety of persons and property.2.3 Level of securityExtent to which the level of risk is covered by the level ofprotection.3.General considerations3.1 PlanningThe standard for general requirements for alarm systems indicatesthat these requirements shall be ascertained by a consultation betweenthe appropriate interested parties. On the basis of this consultation,plans/specifications should be prepared showing:a)details of the proposed alarm system installation;b)the accommodation required for the equipment;SIST IEC 60839-1-4:1995

839-1-4 © IEC- 9 -c)chases, ducts, conduits, channels, etc., required for wiring,including need for segregation of wiring;d)provision of mains power outlets.3.2 Time scheduleA typical list of events to be taken into consideration, probably butnot necessarily in the order stated, in preparing a time schedule is asfollowsa)survey of the building or examination of the plans and an assess-ment of the usage of the building;b)consideration of the action in the event of activation of thesystem;c)system design for estimating purposes embracing the require-ments/recommendations of all official parties;d)costing procedures;e)submission and consideration of specification and quotation;f)placing of order for system;g)agreement on the action in the event of activation of the system;h)detailed planning for installation;i)production and delivery;j)installation of the system;k)commissioning and testing of the system by the alarm company;/) handover of the system to the subscriber, together with writteninstructions for operation and maintenance;m) connection of the specified remote signalling where unavailable attime of handover.It will be normal practice for all these stages to be included in thecritical-path chart for large building operations. Control and indicatingequipment for some large installations may have to be speciallymanufactured and the importance of ordering such special equipment isemphasized.In buildings under construction or reconstruction, temporaryphysical protection may be necessary to protect the equipment fromdamage.The final connection and switching on of the system should be madeat a time agreed between the subscriber and the contractor.SIST IEC 60839-1-4:1995

839-1-4 © IEC- 11 -3.3 Levels of risk and/or emergencyThe type of system chosen shall confer a level of protection toproperty or persons at risk which corresponds to the degree of hazardwhich is likely to occur and to its possible consequences if it occurs,in such a way that the required level of security is assured. This mayinfluence the type and quantity of alarm activating devices, the typeof transmission of the alarm signal, anti-tamper protection of the alarmsignai, the alarm receiving system, etc., as laid down by the relevantIEC standard.3.4 Environmental regulationsWhen using an alarm system, the installer, subscriber or user mayhave responsibilities laid down under legislation, for example whendetectors containing radioactive material are used. In these cases, theofficial authorities shall be contacted at an early stage of systemdesign.4. System requirements4.1 General considerationsThe nature of an alarm system as well as its purpose requirescareful design.If the division of the system into zones or circuits is necessary inorder to obtain a clear and unambiguous indication of the origin of analarm signal, the design should allow for such division.When designing an alarm system, careful consideration should begiven to leave possibilities for additions and/or modifications of thesystem.The number of detection devices connected to any circuit shall bedecided with regard to practical fault identification or location. Thesystem shall be designed as far as practicable to ensure that faultsoccurring in one part of the system do not obviously affect other partsof the system.Technical faults should preferably be indicated separately on thecontrol and indicating equipment.Routine tests shall be specified to detect faults not disclosed by thenormal monitoring procedures.Alarm systems should be so designed that correct operation of thesystem cannot be jeopardized by uninstructed personnel operating anymanual controls.Provision should be made so that testing of individual detectors doesnot generate an alarm. Alarm systems should be so designed thattesting of individual detectors does not require isolation of the totalsystem to prevent generation of an alarm.SIST IEC 60839-1-4:1995

839-1-4 © IEC- 13 -4.2 Environmental conditionsThe system should be so designed that it meets the performancespecified under the environmental conditions to which it is likely to beexposed at the protected premises, including mechanical damage,weather, dampness, corrosion, oil, heat and adverse industrialatmospheres.Both environmental conditions internal to the premises, such asindustrial processes, heating and ventilation systems, and animals, andthose external to the premises, such as extreme weather conditions,operations on adjacent sites, and traffic, should be considered.As the alarm activating system may be installed inside or outsidebuildings, under various conditions as regards temperature, humidity,weather, atmosphere, possibilities of mechanical damage, etc., fullinformation relating to the environmental conditions may be required inthe system specification.4.3 Detectors4.3.1 Manually operated devicesThe siting of the devices should be such as to minimize the risk ofaccidental or malicious operation and still remain easily accessible tothe user.The number of different methods of operation of manually operateddevices in an installation should be kept to a minimum.4.3.2 Automatic detection devicesAlarm detectors operating on a wide range of operating principlesare available. No one type of detector is suitable for all applicationsand the final choice depends on the individual circumstances. In somesituations it may be desirable to combine different types of detector toprotect a particular area.In any automatic alarm system the detector has to discriminatebetween the hazard and the normal environment existing within thebuilding. The alarm system shall employ detectors which are suited tothe conditions and which will provide the earliest reliable warning.Detectors should be sited to provide a satisfactory area of coverageagainst the hazard. They should be securely mounted on a fixedstructure free from vibration and shock and be located out of reach ofunauthorized personnel. Any adjustment to their alignment shouldrequire the use of a tool. Consideration should be given to potentialobstruction of the detector by changes in layout of the protected area.SIST IEC 60839-1-4:1995

839-1-4 © IEC- 15 -The sensitivity of the detector should be chosen to provide thenecessary degree of protection without causing false alarms due toenvironmental conditions.4.4 Control and indicating equipmentControl and indicating equipment may comprise equipment for thereception, control, recording and relaying of signals from triggerdevices connected to it, and for the activation of alarm sounders andalarm signalling devices.The alarm system should be designed to indicate clearly the locationof the origin of the alarm.Alarms and faults should be indicated separately.4.5 Transmission systemsIt is desirable that provision be made for transmission of alarmsignals to a remote manned centre (police, etc.) . A facility may alsobe provided for sending a fault warning to a remote manned centre.It is recommended that the signalling path leaving the protectedpremises should be underground or concealed. If permanently con-nected, the communication link to a remote manned centre should becontinuously monitored with a fault indication at the receiving stationin the event of failure. If the communication link is not continuouslymonitored for faults then a programme of routine testing should bespecified.5. Combined systems5.1 GeneralNo alarm system should be planned for installation in a buildingwithout due regard being paid to other alarm systems, possibly fordifferent purposes which may already be installed in, or be underconsideration for installation in, the same building or premises. It maybe that the functions of any such alarm systems could with advantagebe combined with the alarm system about to be planned, therebyproviding a comprehensive facility. Whether or not this is the case,care should be taken to ensure that multiple systems in pre-planning,maintenance, operation and effect are compatible with each other, willnot reduce the standard of performance for which they are indepen-dently capable and are unlikely to cause confusion between theirmethods of operation and control or between the various signals whichthey provide.SIST IEC 60839-1-4:1995

839-1-4 © IEC- 17 -Alarm systems often comprise one element only in a balanced schemeof protection for premises and their occupants and are sometimes usedin conjunction with structural features, standard of human super-vision, etc., to provide , a predetermined level of defence againstadverse contingencies.Other matters to be taken into account in deciding on this prede-termined level of defence are the probability of correct response byoccupants, their degree of vulnerability and the vulnerability of thebuilding as a whole.It is important, therefore, that requirements of reliability, etc.,imposed on alarm systems by the overall safety specification should bemet exactly and, since in a particular building there may be a numberof contingencies against which defence is necessary, that the effects ofoperation or fault of one alarm system on the defence provisions for adifferent form of hazard or occurrence are anticipated.5.2 Priority of requirements for alarm systemsIf in any case compromise of performance or reliability becomesnecessary because of conflicting requirements for different types ofalarm system, priority should be given to consideration of life safety.The immediacy of danger to life shall be the determining factorwhere life can be endangered by more than one kind of hazard. Thecontingency which is likely to result in the greatest loss, if it remainsundetected, is fire. Alarm systems which do not include fire detectionshould give priority to life safety.5.3 Control over alarm systemThe degree of influence provided by manual control over theoperation of any individual alarm system should be decided by anassessment of the likelihood and overall effects of improper use ofthose controls. Controls provided to allow the operation of an alarmsystem by manual means should be self-evident in
...

IEC 60811-411 ®
Edition 1.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric and optical fibre cables – Test methods for non-metallic materials –
Part 411: Miscellaneous tests – Low-temperature brittleness of filling
compounds
Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux
non-métalliques –
Partie 411: Essais divers – Fragilité à basse température des matières de
remplissage
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IEC 60811-411 ®
Edition 1.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric and optical fibre cables – Test methods for non-metallic materials –

Part 411: Miscellaneous tests – Low-temperature brittleness of filling

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

non-métalliques –
Partie 411: Essais divers – Fragilité à basse température des matières de

remplissage
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX H
ICS 29.035.01; 29.060.20 ISBN 978-2-88912-973-7

– 2 – 60811-411  IEC:2012
CONTENTS
FOREWORD . 3
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 pieces preparation. 6
4.4 Ageing procedure . 7
4.5 Evaluation of the results . 7
5 Test report. 7

60811-411  IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC AND OPTICAL FIBRE CABLES –
TEST METHODS FOR NON-METALLIC MATERIALS –

Part 411: Miscellaneous tests –
Low-temperature brittleness of filling compounds

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
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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 60811-411 has been prepared by IEC technical committee 20:
Electric cables.
This Part 411 of IEC 60811 cancels and replaces Clause 6 of IEC 60811-5-1:1990, 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.

– 4 – 60811-411  IEC:2012
The text of this standard is based on the following documents:
FDIS Report on voting
20/1295/FDIS 20/1344/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.
Le comité a décidé que le contenu de cette publication ne sera pas modifié avant la date de
stabilité indiquée sur le site web de la CEI sous "http://webstore.iec.ch" dans les données
relatives à la publication recherchée. A cette date, la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
60811-411  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.
– 6 – 60811-411  IEC:2012
ELECTRIC AND OPTICAL FIBRE CABLES –
TEST METHODS FOR NON-METALLIC MATERIALS –

Part 411: Miscellaneous tests –
Low-temperature brittleness of filling compounds

1 Scope
This Part 411 of IEC 60811 gives the procedure to evaluate lower temperature brittleness
which typically applies to filling compounds used for communication and optical fibre cables.
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.
This test is used to examine the adhesion between the compound and other elements of the
cable.
NOTE The test method does not apply to filling compounds with a drop-point higher than 80 °C.
4.2 Apparatus
For the purpose of this test, the different equipment used is as follows:
a) strips of lead alloy of dimensions 170 mm × 14 mm × 0,9 mm;
b) sheet brass pattern of dimensions 160 mm × 160 mm × 1 mm having a rectangular
opening of 100 mm × 10 mm and a locating edge to avoid movement on the strips;
c) metal mandrel having a 10 mm diameter;
d) cold enclosure for –10 °C ± 1 °C.
4.3 Sample and test pieces preparation
From a sample of f
...