IEC 60811-401-2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 401 Miscellaneous tests - Thermal ageing methods - Ageing .pdf

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1、 IEC 60811-401 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 401: Miscellaneous tests Thermal ageing methods Ageing in an air oven Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux non

2、-mtalliques Partie 401: Essais divers Mthodes de vieillissement thermique Vieillissement en tuve air IEC60811-401:2012 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 uti

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16、ation ou si vous avez des questions contactez-nous: csciec.ch. IEC 60811-401 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 401: Miscellaneous tests Thermal ageing methods Ageing in an air oven Cbles lect

17、riques et fibres optiques Mthodes dessai pour les matriaux non-mtalliques Partie 401: Essais divers Mthodes de vieillissement thermique Vieillissement en tuve air INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE R ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN

18、 978-2-88912-961-4 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 pub

19、lication via un distributeur agr. 2 60811-401 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 Influence of the ageing treatment on the mechanical characteristics 7 4.2.1 Apparatus 7 4.2.2 Sample

20、and test pieces preparation . 7 4.2.3 Ageing procedure 7 4.2.4 Measurements . 8 4.2.5 Expression of results . 8 4.2.6 Requirements 9 4.2.7 Test report . 9 4.3 Bending test on test pieces of core 9 4.3.1 Apparatus 9 4.3.2 Sample and test pieces preparation . 9 4.3.3 Procedure 9 4.3.4 Requirement 10 4

21、.3.5 Test report . 10 Annex A (normative) Methods of measuring air flow in ovens . 11 Annex B (normative) Test pieces preparation in presence of copper or metal coated copper conductor 15 Annex C (normative) Sample and test pieces preparation for ageing of complete cable . 18 Bibliography 19 Figure

22、A.1 Flowmeter for air-flow control in air ovens for method 2 13 Figure A.2 Calibration diagram of the capillary tube of the flowmeter for air-flow control in air ovens for method 2 . 14 Figure B.1 Specially prepared test pieces 17 Figure B.2 Dumb-bell test pieces preparation after ageing . 17 Table

23、1 Number of turns for bending test . 10 Table B.1 Summary of ageing tests for insulated conductors in case of difficulties in preparing test pieces due to conductor insulation or separator adhesion during ageing . 15 60811-401 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC AND OPTIC

24、AL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 401: Miscellaneous tests Thermal ageing methods Ageing in an air oven FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC

25、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, P

26、ublicly 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-gov

27、ernmental 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

28、 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 accep

29、ted 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 internation

30、al 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 lat

31、ter. 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 shou

32、ld 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 and IEC National Committees for any personal injury, property damage or other dama

33、ge 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) Attention is drawn to the Normative references cited in this publication. Use of

34、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 right

35、s. International Standard IEC 60811-401 has been prepared by IEC technical committee 20: Electric cables. This Part 401 of IEC 60811 cancels and replaces 8.1 and 8.4 of IEC 60811-1-2:1985, which is withdrawn. Full details of the replacements are shown in Annex A of IEC 60811-100:2012. There are no s

36、pecific technical changes with respect to the previous edition, but see the Foreword to IEC 60811-100:2012. 4 60811-401 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 20/1285/FDIS 20/1334/RVD Full information on the voting for the approval of this stand

37、ard 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 gen

38、eral title Electric and optical fibre cables Test methods 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 dat

39、a related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 60811-401 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. Thes

40、e 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 bee

41、n 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 60811-401 IEC:2012 ELECTRIC A

42、ND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 401: Miscellaneous tests Thermal ageing methods Ageing in an air oven 1 Scope This Part 401 of IEC 60811 specifies the procedure for ageing in an air oven, which typically applies to crosslinked and thermoplastic compounds used for

43、 insulating and sheathing materials. 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 ref

44、erenced document (including any amendments) applies. IEC 60228, Conductors of insulated cables IEC 60811-100:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 100: GeneralIEC 60811-409, Electric and optical fibre cables Test methods for non-metallic materials Part

45、409: Miscellaneous tests Loss of mass test for thermoplastic insulations and sheaths 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 compounds IEC 60811-504

46、, Electric and optical 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 Gene

47、ral This part of IEC 60811 shall be used in conjunction with IEC 60811-100. Unless otherwise specified, tests shall be carried out at room temperature. An ageing treatment in an air oven may be required by the relevant cable standard: a) for prepared test pieces of insulating or sheathing material o

48、nly (see 4.2.3.2); b) for prepared test pieces of cores (conductor and insulation) (see 4.2.3.2 and 4.2.3.3 if necessary); 60811-401 IEC:2012 7 c) for test pieces of completed cable (see 4.2.3.4); d) for the loss of mass test (see IEC 60811-409). The ageing test a) or b) and the loss of mass test d)

49、 may be combined and carried out on the same test pieces when the aging time and aging temperature are the same. In general, mechanical characteristics are measured after treatment, but in some cases, the conductor and the separator, if any, cannot be removed without damaging the insulation and a bending test is realized on the circular conductor up to and inc