1、 IEC 60811-405 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 405: Miscellaneous tests Thermal stability test for PVC insulations and PVC sheaths Cbles lectriques et fibres optiques Mthodes dessai pour le
2、s matriaux non-mtalliques Partie 405: Essais divers Essai de stabilit thermique pour les enveloppes isolantes et gaines en PVC IEC60811-405:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publicatio
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16、mentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60811-405 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 405: Miscellaneous tests Thermal stability test for PV
17、C insulations and PVC sheaths Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux non-mtalliques Partie 405: Essais divers Essai de stabilit thermique pour les enveloppes isolantes et gaines en PVC INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
18、H ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN 978-2-88912-965-2 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!
19、Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60811-405 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 Apparatus 6 4.3 Pre-conditioning 7 4.4 Test proce
20、dure 7 4.5 Evaluation of results 7 5 Test report 7 Bibliography 8 60811-405 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 405: Miscellaneous tests Thermal stability test for PVC insulations and PVC sheaths FOREWO
21、RD 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 elect
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29、s 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,
30、 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 th
31、at 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 60811-405 has been prepared by IEC technical committee 20: Electric cables. This Part 405 of IEC 60811 canc
32、els and replaces Clause 9 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 60811-100:2012. 4 60811-405 IEC:2012 The text of
33、 this standard is based on the following documents: FDIS Report on voting 20/1289/FDIS 20/1338/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 Dire
34、ctives, 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 found on the IEC website. The committee has dec
35、ided 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, withdrawn, replaced by a revised edition, or amend
36、ed. 60811-405 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 materials. NOTE 1 Non-metallic materials are
37、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 have also been widely accepted and used for ot
38、her cables, in particular optical fibre cables, communication and control cables and cables for ships and offshore applications. 6 60811-405 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 405: Miscellaneous tests Thermal stability test for PVC insulations and
39、 PVC sheaths 1 Scope This Part 405 of IEC 60811 specifies the procedure for the thermal stability test which applies to PVC compounds. 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
40、 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 materials Part 100: General ISO 695:1991, Glass Resistance to att
41、ack by a boiling aqueous solution of mixed alkali Method of test and classification ISO 719:1985, Glass Hydrolytic resistance of glass grains at 98 degrees C Method of test and classification ISO 1776:1985, Glass Resistance to attack by hydrochloric acid at 100 degrees C Flame emission or flame atom
42、ic absorption spectrometric method 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 o
43、ut at room temperature. 4.2 Apparatus The following apparatus shall be used: a) Glass tubes closed at one end (e.g. by melting), 110 mm long with an outer diameter of approximately 5 mm and an inner diameter of (4,0 0,5) mm. Tubes made of AR-glass shall be used complying with ISO 695:1991; Alkali re
44、sistance, Class A2, ISO 719:1985; Hydrolytic resistance, Class HGB3, 60811-405 IEC:2012 7 ISO 1776:1985; Acid resistance, max. weight loss 150 g Na2O/100 cm2; b) Universal indicating paper with a pH range of 1 to 10. c) Thermostatically controlled heating apparatus for a temperature specified in the
45、 standard for the type of cable, or, if the temperature is not specified in the cable standard, at (200 0,5) C. An oil bath is preferred and shall be used for type tests and in case of doubt. d) Calibrated thermometer with divisions of 0,1 C. Depending on the type of thermometer, and the way in whic
46、h it has been calibrated and is used, a mercury column correction may be necessary. e) Stop-watch or a suitable time meter. 4.3 Pre-conditioning All the tests shall be carried out not less than 16 h after the extrusion of the insulating or sheathing compounds. 4.4 Test procedure The test procedure s
47、hall be as follows: NOTE The use of a sufficiently accurate thermometer and compliance with the required test temperature limits are absolutely necessary to obtain reliable test results and to restrict scatter in these results. a) From the insulation of each core to be tested or from the sheath to b
48、e tested, three samples, each of (50 5) mg, shall be taken. Each sample shall consist of two or three small strips having a length between 20 mm and 30 mm. Each sample shall be inserted into a glass tube as specified in item a) of 4.2. The sample shall occupy no more than the bottom 30 mm of the tub
49、e. b) A strip of dry universal indicating paper, as specified in item b) of 4.2, about 15 mm long and 3 mm wide, shall be inserted into the open end (top) of the glass tube so that the strip protrudes about 5 mm out of the tube and can be bent to keep it in position. c) The glass tube shall be placed into the heating apparatus, as specified in item c) of 4.2, which has already at
