1、 IEC 60811-409 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 409: Miscellaneous tests Loss of mass test for thermoplastic insulations and sheaths Cbles lectriques et fibres optiques Mthodes dessai pour l
2、es matriaux non-mtalliques Partie 409: Essais divers Essai de perte de masse des enveloppes isolantes et gaines thermoplastiques IEC60811-409:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publicat
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16、ommentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60811-409 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 409: Miscellaneous tests Loss of mass test for therm
17、oplastic insulations and sheaths Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux non-mtalliques Partie 409: Essais divers Essai de perte de masse des enveloppes isolantes et gaines thermoplastiques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATION
18、ALE M ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN 978-2-88912-969-0 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. Attenti
19、on! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60811-409 IEC:2012 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Loss of mass test for insulation 6 4.1 General . 6 4.2 Test equipment . 6 4.3 Sam
20、ple and test pieces preparation. 7 4.4 Test procedure 7 4.5 Measurements . 8 4.6 Expression of results . 8 5 Test report 8 6 Loss of mass test for sheaths . 8 6.1 General . 8 6.2 Test equipment . 8 6.3 Sample and test pieces preparation. 8 6.4 Test procedure 8 6.5 Measurements . 8 6.6 Expression of
21、results . 9 7 Test report 9 Annex A (normative) Calculation of the evaporation area . 10 Bibliography 13 Figure A.1 Dumb-bell test piece . 11 Figure A.2 Small dumb-bell test piece 11 Figure A.3 Measurement of insulation thickness (stranded conductor) . 12 Figure A.4 Measurement of thickness (uneven
22、outer circular profile) 12 Figure A.5 Measurement of sheath thickness (irregular inner circular profile) . 12 60811-409 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 409: Miscellaneous tests Loss of mass test for
23、 thermoplastic 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 promote international co-operation on all ques
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32、 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
33、. 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 60811-409 has been prepared by IEC technical committee 20: Ele
34、ctric cables. This Part 409 of IEC 60811 cancels and replaces Clause 8 of IEC 60811-3-2:1985, 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 608
35、11-100:2012. 4 60811-409 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 20/1293/FDIS 20/1342/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 bee
36、n 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 fo
37、und 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, withd
38、rawn, replaced by a revised edition, or amended. 60811-409 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
39、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 h
40、ave 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 60811-409 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 409: Miscellaneous tests L
41、oss of mass test for thermoplastic insulations and sheaths 1 Scope This Part 409 of IEC 60811 gives the procedure for measuring the loss of mass which normally applies to PVC insulations and sheaths. 2 Normative references The following documents, in whole or in part, are normatively referenced in t
42、his 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
43、materials Part 100: General IEC 60811-201:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 201: General tests Measurement of insulation thickness IEC 60811-202:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 202: General tests
44、Measurement of thickness of non-metallic sheath IEC 60811-401:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 401: Miscellaneous tests Thermal ageing methods Ageing in an air oven IEC 60811-501:2012, Electric and optical fibre cables Test methods for non-metallic
45、 materials Part 501: Mechanical tests Tests for determining the mechanical properties of insulation and sheathing compounds 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60811-100 apply. 4 Loss of mass test for insulation 4.1 General This part of I
46、EC 60811 shall be used in conjunction with IEC 60811-100 Unless otherwise specified, all test procedures, except the period in the ageing oven, shall be carried out at room temperature. 4.2 Test equipment The test equipment shall consist of: 60811-409 IEC:2012 7 a) An oven with natural air flow or a
47、ir flow by pressure. The air shall enter the oven in such a way that it flows over the surface of the test pieces and leaves near the top of the oven. The oven shall have not less than 8 and not more than 20 complete air changes per hour at the specified ageing temperature, as described in 4.2.1 of
48、IEC 60811-401:2012. In case of dispute, an oven with natural air circulation shall be used. A rotating fan shall not be used inside the oven. b) An analytical balance with a sensitivity of 0,1 mg. c) Punching dies for dumb-bell test pieces, according to 4.2.3 b) of IEC 60811-501:2012. d) A desiccato
49、r with silica gel or similar material. 4.3 Sample and test pieces preparation If the loss of mass test is combined (see 4.1 d) of IEC 60811-401:2012) with the mechanical test (4.2. of IEC 60811-501: 2012), the test pieces shall be three of those subjected to the ageing in the air oven specified in 4.2.3.1 of IEC 60811-401:2012, one from each core sample. Alternatively, thr
