1、 IEC 60811-404 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 404: Miscellaneous tests Mineral oil immersion tests for sheaths Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux non-mtal
2、liques Partie 404: Essais divers Essais de rsistance lhuile minrale pour les gaines IEC60811-404:2012 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
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16、avez des questions contactez-nous: csciec.ch. IEC 60811-404 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 404: Miscellaneous tests Mineral oil immersion tests for sheaths Cbles lectriques et fibres optiq
17、ues Mthodes dessai pour les matriaux non-mtalliques Partie 404: Essais divers Essais de rsistance lhuile minrale pour les gaines INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE J ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN 978-2-88912-964-5 Registered trad
18、emark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 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 agr.
19、2 60811-404 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 Pre-conditioning 6 4.3 Sample and test piece preparation 6 4.4 Determination of the cross-sectional area of the test piece 6 4.5 Oil to
20、 be used 7 4.6 Procedure . 7 4.7 Determination of mechanical properties . 7 4.8 Expression of results . 7 5 Test report 7 Bibliography 8 60811-404 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 404: Miscellaneous
21、tests Mineral oil immersion tests for 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 a
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30、l 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 publ
31、ication. 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 60811-404 has been prepared by IEC technical committee
32、20: Electric cables. This Part 404 of IEC 60811 cancels and replaces Clause 10 of IEC 60811-2-1:1998, 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
33、 IEC 60811-100:2012. 4 60811-404 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 20/1288/FDIS 20/1337/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
34、 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, c
35、an 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 reconfirme
36、d, withdrawn, replaced by a revised edition, or amended. 60811-404 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 fo
37、r 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
38、. 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 60811-404 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 404: Miscellaneous
39、 tests Mineral oil immersion tests for sheaths 1 Scope This Part 404 of IEC 60811 specifies the method for a mineral oil immersion test, which typically applies to cross-linked compounds used for sheathing materials. 2 Normative references The following documents, in whole or in part, are normativel
40、y 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
41、for non-metallic materials Part 100: General IEC 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 compoundsISO 1817, Rubber, vulcanized Determination of the effe
42、ct of liquids 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. Unless otherwise specified, tests shall be carried out at room temperatur
43、e. 4.2 Pre-conditioning All the tests shall be carried out not less than 16 h after the extrusion or cross-linking, if any, of the sheathing compounds. 4.3 Sample and test piece preparation Five test pieces shall be prepared in accordance with the procedures described in IEC 60811-501. 4.4 Determina
44、tion of the cross-sectional area of the test piece See the test method in IEC 60811-501. 60811-404 IEC:2012 7 4.5 Oil to be used Unless otherwise agreed, the mineral oil to be used shall be oil no. 2 (IRM 902) as described in ISO 1817. 4.6 Procedure The test pieces shall be immersed in the oil bath,
45、 previously heated to the specified test temperature, and shall be maintained in the oil at that temperature for the specified time (see standard for the type of cable). At the end of the specific duration, the test pieces shall be removed from the oil, blotted lightly to remove excess oil and suspe
46、nded in air at ambient temperature for at least 16 h but not more than 24 h, unless otherwise specified in the relevant cable standard. At the end of this period, any further excess oil shall be removed by lightly blotting the test pieces. 4.7 Determination of mechanical properties See the test meth
47、od in IEC 60811-501. 4.8 Expression of results The calculation of tensile strength shall be based on the cross-sectional area of the test piece measured before immersion (see 4.2.2). The difference between the median value obtained on the five test pieces immersed in oil and the median value of the
48、values obtained for the untreated test pieces (see IEC 60811-501), expressed as a percentage of the latter, shall not exceed the percentage specified in the standard for the type of cable. If required by the standard for the material in the relevant standard for the type of cable, the values found f
49、or the aged test pieces shall be calculated, in terms of variation compared to the untreated test pieces according to the following formulae: 100UUET=TTTV (1) 100UUEE=EEEV (2) where VTis the variation of the tensile strength in per cent; TEis the tensile strength of aged test piece; TUis the tensile strength of untreated test piece; VEis the variation of the elongation at break in per c
