BS EN 60811-409-2012 Electric and optical fibre cables Test methods for non-metallic materials Miscellaneous tests Loss of mass test for thermoplastic insulations and sheaths《电缆和光缆.pdf

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 409: Miscellaneous tests Loss of mass test for thermoplastic insulations and sheathsBS EN 60811-409:

2、2012National forewordThis British Standard is the UK implementation of EN 60811-409:2012. It isidentical to IEC 60811-409:2012.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Superseded standards are withdrawnThe UK participation in its prepara

3、tion 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 acon

4、tract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65319 3ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published und

5、er the authority of the StandardsPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-409:2012BS 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 60811-409 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 60811-409:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-3-2:1995 (partially) + A2:2004 (partially)English version Electric and optical fibre

9、cables - Test methods for non-metallic materials - Part 409: Miscellaneous tests - Loss of mass test for thermoplastic insulations and sheaths (IEC 60811-409:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques - Partie 409: Essais divers - Essai de perte de ma

10、sse des enveloppes isolantes et gaines thermoplastiques (CEI 60811-409:2012) Kabel, isolierte Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 409: Sonstige Prfungen - Prfung des Masseverlusts von Isolierhllen und Mnteln (IEC 60811-409:2012) This European Standard was

11、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 concerning such

12、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 member into i

13、ts 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, Greece, Hungary

14、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-409:2012 - 2 - Foreword The text of document 20/1293/FDIS, future edition 1 of IEC 60811-409, p

15、repared by IEC/TC 20 “Electric cables“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60811-409:2012. 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 or by endorsem

16、ent (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 8 of EN 60811-3-2:1995 + A2:2004 (partially). Full details of the replacements are shown in Annex A of EN 60811-100:2012. There are no

17、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. CENELEC and/or

18、 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 International Standard

19、IEC 60811-409:2012 was approved by CENELEC as a European Standard without any modification. BS EN 60811-409:2012- 3 - EN 60811-409:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part,

20、 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 has been modi

21、fied 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 IEC 60811-201 2012 Electric and optical fibre cables -

22、Test methods for non-metallic materials - Part 201: General tests - Measurement of insulation thickness EN 60811-201 2012 IEC 60811-202 2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 202: General tests - Measurement of thickness of non-metallic sheath EN 6081

23、1-202 2012 IEC 60811-401 2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 401: Miscellaneous tests - Thermal ageing methods - Ageing in an air oven EN 60811-401 2012 IEC 60811-501 2012 Electric and optical fibre cables - Test methods for non-metallic materials

24、- Part 501: Mechanical tests - Tests for determining the mechanical properties of insulating and sheathing compounds EN 60811-501 2012 BS EN 60811-409:2012 2 60811-409 IEC:2012 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Loss of mass test for insula

25、tion 6 4.1 General . 6 4.2 Test equipment . 6 4.3 Sample and test pieces preparation. 7 4.4 Test procedure 7 4.5 Measurements . 8 4.6 Expression of results . 8 5 Test report 8 6 Loss of mass test for sheaths . 8 6.1 General . 8 6.2 Test equipment . 8 6.3 Sample and test pieces preparation. 8 6.4 Tes

26、t procedure 8 6.5 Measurements . 8 6.6 Expression of results . 9 7 Test report 9 Annex A (normative) Calculation of the evaporation area . 10 Bibliography 13 Figure A.1 Dumb-bell test piece . 11 Figure A.2 Small dumb-bell test piece 11 Figure A.3 Measurement of insulation thickness (stranded conduct

27、or) . 12 Figure A.4 Measurement of thickness (uneven outer circular profile) 12 Figure A.5 Measurement of sheath thickness (irregular inner circular profile) . 12 BS EN 60811-409:201260811-409 IEC:2012 5 INTRODUCTION The IEC 60811 series specifies the test methods to be used for testing non-metallic

28、 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 test methods are accepte

29、d 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 ships and offshore applic

30、ations. BS EN 60811-409:2012 6 60811-409 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 409: Miscellaneous tests Loss of mass test for thermoplastic insulations and sheaths 1 Scope This Part 409 of IEC 60811 gives the procedure for measuring the loss of mass

31、which normally applies to PVC insulations and sheaths. 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

32、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 IEC 60811-201:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 201: General tests

33、 Measurement of insulation thickness IEC 60811-202:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 202: General tests Measurement of thickness of non-metallic sheath IEC 60811-401:2012, Electric and optical fibre cables Test methods for non-metallic materials Par

34、t 401: Miscellaneous tests Thermal ageing methods Ageing in an air oven IEC 60811-501:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 501: Mechanical tests Tests for determining the mechanical properties of insulation and sheathing compounds 3 Terms and definitio

35、ns For the purposes of this document, the terms and definitions given in IEC 60811-100 apply. 4 Loss of mass test for insulation 4.1 General This part of IEC 60811 shall be used in conjunction with IEC 60811-100 Unless otherwise specified, all test procedures, except the period in the ageing oven, s

36、hall be carried out at room temperature. 4.2 Test equipment The test equipment shall consist of: BS EN 60811-409:201260811-409 IEC:2012 7 a) An oven with natural air flow or air flow by pressure. The air shall enter the oven in such a way that it flows over the surface of the test pieces and leaves

37、near the top of the oven. The oven shall have not less than 8 and not more than 20 complete air changes per hour at the specified ageing temperature, as described in 4.2.1 of IEC 60811-401:2012. In case of dispute, an oven with natural air circulation shall be used. A rotating fan shall not be used

38、inside the oven. b) An analytical balance with a sensitivity of 0,1 mg. c) Punching dies for dumb-bell test pieces, according to 4.2.3 b) of IEC 60811-501:2012. d) A desiccator with silica gel or similar material. 4.3 Sample and test pieces preparation If the loss of mass test is combined (see 4.1 d

39、) of IEC 60811-401:2012) with the mechanical test (4.2. of IEC 60811-501: 2012), the test pieces shall be three of those subjected to the ageing in the air oven specified in 4.2.3.1 of IEC 60811-401:2012, one from each core sample. Alternatively, three of the other test pieces prepared from each cor

40、e in accordance with 4.2 of IEC 60811-501: 2012, may be used, if they are not required for other purposes and if their thickness complies with item c) below. Otherwise, three samples, each about 100 mm long, of each core or the insulation from each core to be tested shall be taken, and a test piece

41、prepared from each one in the same way as specified below. a) Any coverings shall be removed. The conductor shall be removed and semi-conducting layers on the insulation, if any, shall be removed mechanically, i.e. without using solvent. b) The test shall be made on 1) dumb-bell test pieces illustra

42、ted in Figure A.1, whenever practicable, 2) dumb-bell test pieces illustrated in Figure A.2, if the core dimensions are too small to permit dumb-bells according to Figure A.1 to be used, 3) tubular test pieces, as an alternative to dumb-bells, for inner diameters not exceeding 12,5 mm, provided that

43、 there is not an adherent semi-conducting layer on the inside of the insulation and that any remaining separator shall be removed in a suitable way but without using solvent. The ends of tubular test pieces shall not be closed. c) Dumb-bell test pieces shall be prepared as specified in 4.2.3 b) of I

44、EC 60811-501:2012, except that the test pieces shall have two parallel surfaces over the whole length, their thickness shall be (1,0 0,2) mm, and marker lines are not required. d) Tubular test pieces shall be prepared as specified in 4.2.3 c) of IEC 60811-501:2012, without applying marker lines. The

45、 total surface area A of each test piece (see Annex A) shall be not less than 5 cm2. e) Flat twin flexible cables provided with a groove on both sides between the cores shall be tested without separation of the cores. For calculation of its surface of evaporation, the twin cable may be considered as

46、 being two separated tubular pieces. The surface area, A, in square centimetres, of each test piece shall be determined before conducting the loss of mass test using the formulae as described in Annex A. 4.4 Test procedure a) The prepared test pieces shall be placed for at least 20 h at ambient temp

47、erature in a desiccator. Immediately after removal from the desiccator, each test piece shall be weighed accurately, in milligrams, to one decimal place. BS EN 60811-409:2012 8 60811-409 IEC:2012 b) Thereafter, the three test pieces shall be maintained in the oven (see 4.2), in air at atmospheric pr

48、essure for 7 24 h at (80 2) C, unless otherwise specified, under the following conditions: compounds of obviously different compositions shall not be tested at the same time in the same oven; test pieces shall be suspended vertically in the middle of the oven so that each piece is at least 20 mm fro

49、m any other piece; not more than 0,5 % of the oven volume shall be occupied by the test pieces. c) After this heat treatment, the test pieces shall again be placed for 20 h in a desiccator at ambient temperature. 4.5 Measurements Each test piece shall then be re-weighed accurately, in milligrams, to one decimal place. The difference between the weights determined before and after treatment, for each test piece, shall be calculated and rounded off to the ne