1、 IEC 60811-505 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 505: Mechanical tests Elongation at low temperature for insulations and sheaths Cbles lectriques et fibres optiques Mthodes dessai pour les ma
2、triaux non-mtalliques Partie 505: Essais mcaniques Essai dallongement basse temprature pour les enveloppes isolantes et les gaines IEC60811-505:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this public
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16、 commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60811-505 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 505: Mechanical tests Elongation at low temperatur
17、e for insulations and sheaths Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux non-mtalliques Partie 505: Essais mcaniques Essai dallongement basse temprature pour les enveloppes isolantes et les gaines INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNA
18、TIONALE L ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN 978-2-88912-980-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Att
19、ention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60811-505 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 Elongation test at low temperature for in
20、sulation . 7 4.2.1 Sampling . 7 4.2.2 Preparation of test pieces 7 4.2.3 Apparatus 7 4.2.4 Procedure and test conditions . 8 4.2.5 Evaluation of results 8 4.3 Elongation test at low temperature for sheaths 8 4.3.1 Sampling . 8 4.3.2 Preparation of test pieces 8 4.3.3 Apparatus 9 4.3.4 Procedure and
21、test conditions . 9 4.3.5 Evaluation of results 9 5 Test report 9 Bibliography 11 Figure 1 Dumb-bell test piece 10 Figure 2 Small dumb-bell test piece . 10 60811-505 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part
22、505: Mechanical tests Elongation at low temperature for insulations 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 promo
23、te 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 (
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30、 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 indi
31、rect, 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 th
32、e 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 60811-505 has been pr
33、epared by IEC technical committee 20: Electric cables. This Part 505 of IEC 60811 cancels and replaces 8.3 and 8.4 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 previ
34、ous edition, but see the Foreword to IEC 60811-100:2012. 4 60811-505 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 20/1301/FDIS 20/1350/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated
35、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 m
36、ethods 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
37、, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 60811-505 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 sta
38、ndards 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 fo
39、r 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 60811-505 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALL
40、IC MATERIALS Part 505: Mechanical tests Elongation at low temperature for insulations and sheaths 1 Scope This Part 505 of IEC 60811 gives the procedure for performing elongation tests at low temperature on extruded insulations and sheaths. 2 Normative references The following documents, in whole or
41、 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 fi
42、bre cables Test methods for non-metallic materials Part 100: GeneralIEC 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 compoundsIEC 60811-504, Electric and opt
43、ical fibre cables Test methods for non-metallic materials Part 504: Mechanical tests Bending tests at low temperature for insulation and sheaths 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 I
44、EC 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. Tests shall be carried out at the temperature specified in the relevant cable standard. For tests on insulation, the test is i
45、ntended for insulated conductors of circular cross-section having an external diameter greater than 12,5 mm and for sector-shaped cores large enough to prepare dumb-bells. Where it is not possible to prepare dumb-bells, a bending test suitable for testing the performance of cores of smaller diameter
46、 is described in IEC 60811-504. This test is intended for the sheaths of cables not subjected to the bend test as specified in IEC 60811-504. It is intended for cables with an overall diameter over 12,5 mm, or for flat cables having, a major axis dimension over 12,5 mm. Cables with an overall diamet
47、er up to 60811-505 IEC:2012 7 and including 12,5 mm shall be subjected to the low temperature bending test detailed in IEC 60811-504. 4.2 Elongation test at low temperature for insulation 4.2.1 Sampling Each core to be tested shall be represented by two samples of suitable length. 4.2.2 Preparation
48、of test pieces After all covering (including outer semi-conducting layer, if any) has been removed, the insulation shall be cut open in the direction of the axis, after which the conductor and the internal semi-conducting layer, if any, shall be removed. The insulation need not be ground or cut if t
49、he inner and outer surfaces are smooth, and its mean specified thickness does not exceed 2,0 mm. Samples having a thickness exceeding this limit, or samples having imprints or ridges on the inner side, shall be ground or cut to obtain two parallel and smooth surfaces, and a thickness which does not exceed 2,0 mm. The minimum thickness after grinding or cutting shall be 0,8 mm but if
