1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationElectric and optical fibre cables Test methods for non-metallic materialsPart 405: Miscellaneous tests Thermal stability test for PVC insulations and PVC sheathsBS EN 60811-405:2
2、012National forewordThis British Standard is the UK implementation of EN 60811-405:2012. It isidentical to IEC 60811-405:2012.In the UK, the relationship between the supersessions of BS EN 60811 seriescan be summarized as follows.Superseded standards are withdrawnThe UK participation in its preparat
3、ion was entrusted by Technical CommitteeGEL/20, Electric cables, to Subcommittee GEL/20/17, Electric Cables - Lowvoltage.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acont
4、ract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65315 5ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published unde
5、r the authority of the StandardsPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-405:2012BS EN 60811-100 together with Supersedes - -201, -202, -203, -501 BS EN 60811-1-1:1995 -301, -302, -411, -601, -602, -603, -
6、604 BS EN 60811-5-1:2000 -401, -412 BS EN 60811-1-2:1995 -402, -502, -503, -606 BS EN 60811-1-3:1995 -403, -404, -507 BS EN 60811-2-1:1998 -405, -409 BS EN 60811-3-2:1995 -406, -511, -605, -607 BS EN 60811-4-1:2004 -407, -408, -410, -510, -512, -513 BS EN 60811-4-2:2004 -504, -505, -506 BS EN 60811-
7、1-4:1995 -508, -509 BS EN 60811-3-1:1995EUROPEAN STANDARD EN 60811-405 NORME EUROPENNE EUROPISCHE NORM June 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue
8、Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60811-405:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-3-2:1995 (partially) + A2:2004 (partially)English version Electric and optical fibre c
9、ables - Test methods for non-metallic materials - Part 405: Miscellaneous tests - Thermal stability test for PVC insulations and PVC sheaths (IEC 60811-405:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques - Partie 405: Essais divers - Essai de stabilit ther
10、mique pour les enveloppes isolantes et gaines en PVC (CEI 60811-405:2012) Kabel, isolierte Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 405: Sonstige Prfungen - Prfung der thermischen Stabilitt von PVC-Isolierhllen und PVC-Mnteln (IEC 60811-405:2012) This European
11、Standard was approved by CENELEC on 2012-04-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references con
12、cerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC
13、member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Gr
14、eece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-405:2012 - 2 - Foreword The text of document 20/1289/FDIS, future edition 1 of IEC
15、 60811-405, prepared by IEC/TC 20 “Electric cables“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60811-405:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard o
16、r by endorsement (dop) 2013-01-16 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2015-04-16 This document supersedes Clause 9 of EN 60811-3-2:1995 + A2:2004 (partially). Full details of the replacements are shown in Annex A of EN 60811-100:2012.
17、There are no technical changes with respect to EN 60811-3-2:1995 + A2:2004, but see the Foreword to EN 60811-100:2012. This standard is to be read in conjunction with EN 60811-100. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. C
18、ENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC) Endorsement notice The text of the Internatio
19、nal Standard IEC 60811-405:2012 was approved by CENELEC as a European Standard without any modification. BS EN 60811-405:2012- 3 - EN 60811-405:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whol
20、e 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 referenced document (including any amendments) applies. NOTE When an international publication
21、has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60811-100 2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 100: General EN 60811-100 2012 ISO 695 1991 Glass - Resistance to attack
22、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 o
23、r flame atomic absorption spectrometric method - - BS EN 60811-405:2012 2 60811-405 IEC:2012 CONTENTS 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 procedure 7 4.5 Evaluation of re
24、sults 7 5 Test report 7 Bibliography 8 BS EN 60811-405:201260811-405 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
25、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 been developed and used over many years principally for the materials in all energy cabl
26、es. 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. BS EN 60811-405:2012 6 60811-405 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS
27、Part 405: Miscellaneous tests Thermal stability test for PVC insulations and 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 refe
28、renced 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 for no
29、n-metallic materials Part 100: General ISO 695:1991, Glass Resistance to attack 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
30、to attack by hydrochloric acid at 100 degrees C Flame emission or flame atomic 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 conjunct
31、ion with IEC 60811-100. Unless otherwise specified, tests shall be carried out 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.
32、 Tubes made of AR-glass shall be used complying with ISO 695:1991; Alkali resistance, Class A2, ISO 719:1985; Hydrolytic resistance, Class HGB3, BS EN 60811-405:201260811-405 IEC:2012 7 ISO 1776:1985; Acid resistance, max. weight loss 150 g Na2O/100 cm2; b) Universal indicating paper with a pH range
33、 of 1 to 10. c) Thermostatically controlled heating apparatus for a temperature specified in the 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) Calibrate
34、d thermometer with divisions of 0,1 C. Depending on the type of thermometer, and the way in which 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
35、 the extrusion of the insulating or sheathing compounds. 4.4 Test procedure The test procedure shall 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 sc
36、atter in these results. a) From the insulation of each core to be tested or from the sheath to be 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
37、as specified in item a) of 4.2. The sample shall occupy no more than the bottom 30 mm of the tube. 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 abo
38、ut 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 attained the test temperature specified. The glass tube shall be inserted into the heating apparatus to a depth of 60 mm. d)
39、 The time taken for the universal indicating paper to change colour from a pH value of 5 pH to a value between 2 pH and 3 pH shall be measured, or the test continued for the specified duration without the colour change occurring. The colour change point shall be considered to have been reached when
40、the red colouring of the universal indicating paper characteristic of a pH value of 3 is just becoming visible. The universal indicating paper shall be renewed (especially for long duration stabilities) towards the end of the expected test time every 5 min to 10 min, so that the change point is bett
41、er visible. 4.5 Evaluation of results The average value of the thermal stability times of the three samples shall not be lower than the value specified in the standard for the type of cable. 5 Test report The test report shall be in accordance with that given in IEC 60811-100. BS EN 60811-405:2012 8
42、 60811-405 IEC:2012 Bibliography IEC 60811-3-2:1985, Common test methods for insulating and sheathing materials of electric cables Part 3: Methods specific to PVC compounds Section Two Loss of mass test Thermal stability test (withdrawn) _ BS EN 60811-405:2012This page deliberately left blankBSI is
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