09-30192970-DC.pdf

a Date: 20 January 2009 Origin: International Latest date for receipt of comments: 30 April 2009 Project no.: 2008/03770 Responsible committee: GEL/20/17 Low voltage cables Interested committees: Title: Draft BS EN 60811-402 Electric and optical fibre cables - Test methods for non-metallic mater ials - Part 402: Environmental tests - Water absorption tests Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede. BSEN60811-1.3 : 1995 (R05) If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 April 2009. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email cservicesbsigroup.com. British, International and foreign standards are also available from BSI Customer Services. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsigroup.com. Direct tel: 0208 996 7281 Responsible Committee Secretary: Mr S Bounds (BSI) E-mail: simon.boundsbsigroup.com Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 8.0 DPC: 09/30192970 DC Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent standard. There is a high probability that this text could be adopted by CENELEC as a reference document for harmonization or as a European Standard. Recipients of this draft are requested to comment on the text bearing in mind this possibility. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. 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Further information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at: http:/www.bsigroup.com/en/Standards-and-Publications/Current-work/DPCs/ Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI FORM CD (IEC) 2008-08-01 20/1017/CD COMMITTEE DRAFT (CD) IEC/TC or SC: TC 20 Project number IEC 60811-402 Ed. 1.0 Title of TC/SC: Electric cables Date of circulation 2009-01-16 Closing date for comments 2009-03-20* Also of interest to the following committees SC 18A, TC 46, SC 46A, SC 46C, SC 86A Supersedes document 20/998/MCR Proposed horizontal standard Other TC/SCs are requested to indicate their interest, if any, in this CD to the TC/SC secretary Functions concerned: Safety EMC Environment Quality assurance Secretary: H Myland (DE) THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Title: IEC 60811-402 Ed. 1.0: Electric and optical fibre cables Test methods for non-metallic materials - Part 402: Environmental tests - Water absorption tests (Titre) : Introductory note This CD has been developed by WG 17 of TC 20. It is circulated in accordance with the decision of TC 20 at its meeting in Rome on 16/17 October 2008 (20/1000/RM minute 9.1) Note that, in conjunction with advice from Central Office, the original (provisional) title has been improved. *NOTE: In accordance with SMB decision 133/16 (Sao Paulo, 2008) the secretary of IEC TC 2O has requested a period for comments of two months for this particular CD. Copyright © 2009 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or “mirror“ the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC. Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI 60811-402 Ed 1.0/CD © IEC 2 20/1017/CD CONTENTS FOREWORD.3 1 Scope.5 2 Normative reference.5 3 Terms and definitions .5 4 Test method .5 4.1 General.5 4.2 Pre-conditioning 5 4.3 Electrical water absorption test5 4.3.1 Apparatus5 4.3.2 Preparation of test pieces6 4.3.3 Test procedure 6 4.3.4 Evaluation of results6 4.4 Gravimetric water absorption test 6 4.4.1 Preparation of test piece6 4.4.2 Testing procedure7 4.4.3 Expression of results .8 5 Test Report 8 Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI 60811-402 Ed 1.0/CD © IEC 3 20/1017/CD INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 402: Environmental tests - Water absorption tests 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 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 (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- governmental 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 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 accepted 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 international 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 latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 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 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) 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 rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60811-402 has been prepared by IEC technical committee 20: Electric cables. This Part 402 of IEC 60811 cancels and replaces clause 9 of IEC 60811-1-3, which is withdrawn. Full details of the replacements are shown in IEC 60811-100, Annexes A and B. There are no specific technical changes with respect to the previous edition, but see the foreword to IEC 60811-100. Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI 60811-402 Ed 1.0/CD © IEC 4 20/1017/CD The text of this standard is based on the following documents: FDIS Report on voting XX/XX/FDIS XX/XX/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. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date1) 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, withdrawn, replaced by a revised edition, or amended. 1) The National Committees are requested to note that for this publication the maintenance result date is Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI 60811-402 Ed 1.0/CD © IEC 5 20/1017/CD ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 402: Environmental tests - Water absorption tests 1 Scope IEC 60811 (series) specifies the test methods to be used for testing non-metallic materials of electric and optical fibre cables for energy, communication and control applications, including cables for ships and offshore applications. These test methods are intended to be referenced in standards for cable construction and for cable materials. Note: The non-metallic materials are typically used for insulating, sheathing, bedding, filling or taping within cables. This part 402 describes water absorption tests which typically apply to elastomeric and thermoplastic compounds used for insulating and sheathing materials. 2 Normative reference The following referenced documents are indispensable for the application of this document. 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, Electric and optical fibre cables Test methods for non-metallic materials - Part 100: General 2) 3 Terms and definitions For the purposes of this document, the definitions given in IEC 60811-100 apply. 4 Test method 4.1 General This Part of IEC 60811 shall be used in conjunction with Part 100: General. Unless otherwise specified, tests shall be carried out at room temperature. 4.2 Pre-conditioning All the tests shall be carried out not less than 16 h after the extrusion or vulcanization (or cross-linking), if any, of the insulating or sheathing compounds. If the test is carried out at ambient temperature, the test pieces shall be kept for at least 3 h at a temperature of (23 ± 5) °C. 4.3 Electrical water absorption test 4.3.1 Apparatus 1) AC and DC voltage sources. 2) Voltmeter. 3) Water bath with heating equipment. 2) Under preparation. Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:48, Uncontrolled Copy, (c) BSI 60811-402 Ed 1.0/CD © IEC 6 20/1017/CD 4.3.2 Preparation of test pieces The cores to be tested shall be removed from a sample of finished cable approximately 3 m long. Care shall be taken to avoid damage to the insulation during removal of the cores. 4.3.3 Test procedure a) Pre-test The cores shall be immersed in a water bath in which the water has been heated to the temperature specified in the standard for the type of cable. The ends of the cores shall protrude sufficiently above the water level to prevent damage due to leakage current along the surface of the cores when the required voltage is applied between the conductors and the water. After the cores have been immersed in the water for 1 h, an AC voltage of 4 kV shall be applied between the conductors and the water for 5 min. If any sample of core breaks down it shall be removed from the water bath and not used in the main test specified in Item b) below. How