IEC 60811-411-2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 411 Miscellaneous tests - Low-temperature brittleness of f.pdf

1、 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 Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux

2、 non-mtalliques Partie 411: Essais divers Fragilit basse temprature des matires de remplissage IEC60811-411:2012 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

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16、ou si vous avez des questions contactez-nous: csciec.ch. 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 Cbles lectri

17、ques et fibres optiques Mthodes dessai pour les matriaux non-mtalliques Partie 411: Essais divers Fragilit basse temprature des matires de remplissage INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE H ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN 978-2-88912

18、-973-7 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. Attention! Veuillez vous assurer que vous avez obtenu cette publication via

19、 un distributeur agr. 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

20、-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 organiza

21、tion 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

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27、rresponding 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 f

28、or 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

29、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)

30、 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 righ

31、ts. 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

32、 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

33、/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 6081

34、1-100. 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 comit a dcid que le contenu de cette publication ne sera pas modifi avant la date de stabilit indiq

35、ue sur le site web de la CEI sous “http:/webstore.iec.ch“ dans les donnes relatives la publication recherche. A cette date, la publication sera reconduite, supprime, remplace par une dition rvise, ou amende. 60811-411 IEC:2012 5 INTRODUCTION The IEC 60811 series specifies the test methods to be used

36、 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

37、 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

38、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 brittlen

39、ess 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 a

40、pplies. 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 d

41、efinitions 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 d

42、rop-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 a

43、void 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 finished cable take the filling compound to be tested. Ten test pieces shall be prepared with this compound as described below. Each strip of

44、 lead alloy shall be cleaned with a wire brush and laid on a plain base. 60811-411 IEC:2012 7 The pattern is placed on the strip so that the longitudinal edges of the strip are covered symmetrically. The compound to be tested is spatulated at ambient temperature into the opening of the pattern, and

45、excess material shall be removed by a warmed spatula or other suitable device. The pattern is then removed from the strip. 4.4 Ageing procedure The test pieces shall be conditioned for at least 16 h at room temperature and then cooled to 10 C 1 C for at least 1 h. Each sample shall then immediately

46、be wound helically around a metal mandrel having a 10 mm diameter and which is fixed in a horizontal position and pre-cooled to 10 C. The rate of winding shall be about one revolution per second. 4.5 Evaluation of the results Each test piece shall be examined for cracks, with normal or corrected vis

47、ion, without magnification. Not more than two of the ten test pieces shall show cracks. If more than two samples fail, the test may be repeated one more time. NOTE A slight lifting off at the corners of the compound layer is acceptable. 5 Test report The test report shall be in accordance with that

48、given in IEC 60811-100. 8 60811-411 IEC:2012 Bibliography IEC 60811-5-1:1990, Common test methods for insulating and sheathing materials of electric cables Part 5: Methods specific to filling compounds Section One Drop-point Separation of oil Lower temperature brittleness Total acid number Absence o

49、f corrosive components Permittivity at 23 C D.C. resistivity at 23 C and 100 C (withdrawn) _ 10 60811-411 CEI:2012 SOMMAIRE AVANT-PROPOS 11 1 Domaine dapplication 14 2 Rfrences normatives . 14 3 Termes et dfinitions 14 4 Mthode dessai . 14 4.1 Gnralits 14 4.2 Appareillage 14 4.3 Prparation des chantillon