EN 60811-606-2012 en Electric and optical fibre cables - Test methods for non-metallic materials - Part 606 Physical tests - Methods for determining the density.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationElectric and optical fibre cables Test methods fornon-metallic materialsPart 606: Physical tests Methods for determining the densityBS EN 60811-606:2012National forewordThis Brit

2、ish Standard is the UK implementation of EN 60811-606:2012. It isidentical to IEC 60811-606:2012. 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Superseded standards are withdrawnThe UK participation in its preparation was entrusted by Technic

3、al 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 acontract. Users are responsible

4、for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65343 8ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Stand

5、ardsPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-606:2012BS EN 60811-100 together with Supersedes - -201, -202, -203, -501 BS EN 60811-1-1:1995 -301, -302, -411, -601, -602, -603, -604 BS EN 60811-5-1:2000 -40

6、1, -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 60811-1-4:1995 -508, -509 BS EN 60

7、811-3-1:1995EUROPEAN STANDARD EN 60811-606 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 Marnix 17, B - 1000 Brussels

8、 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60811-606:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-1-3:1995 (partially) + A1:2001 (partially)English version Electric and optical fibre cables - Test methods for non

9、-metallic materials - Part 606: Physical tests - Methods for determining the density (IEC 60811-606:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques - Partie 606: Essais physiques - Mthodes de dtermination de la masse volumique (CEI 60811-606:2012) Kabel, i

10、solierte Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 606: Physikalische Prfungen - Verfahren zur Bestimmung der Dichte (IEC 60811-606:2012) This European Standard was approved by CENELEC on 2012-04-17. CENELEC members are bound to comply with the CEN/CENELEC Inter

11、nal 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 national standards may be obtained on application to the CEN-CENELEC Management Centre or to any

12、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 its own language and notified to the CEN-CENELEC Management Centre has the same status as the offi

13、cial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,

14、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-606:2012 - 2 - Foreword The text of document 20/1315/FDIS, future edition 1 of IEC 60811-606, prepared by IEC/TC 20 “Electric cables“ was submitted to the IEC-CENELEC parallel vote and approve

15、d by CENELEC as EN 60811-606:2012. 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 endorsement (dop) 2013-01-17 latest date by which the national standards conflicting with the document ha

16、ve to be withdrawn (dow) 2015-04-17 This document supersedes Clause 8 of EN 60811-1-3:1995 + A1:2001 (partially). Full details of the replacements are shown in Annex A of EN 60811-100:2012. There are no technical changes with respect to EN 60811-1-3:1995 + A1:2001, but see the Foreword to EN 60811-1

17、00:2012. 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 CEN shall not be held responsible for identifying any or all such patent rights. This standard c

18、overs 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 IEC 60811-606:2012 was approved by CENELEC as a European Standard without any modification. In th

19、e official version, for Bibliography, the following note has to be added for the standard indicated: ISO 1183 series NOTE Harmonized in EN ISO 1183 series. BS EN 60811-606:2012- 3 - EN 60811-606:2012 Annex ZA (normative) Normative references to international publications with their corresponding Eur

20、opean publications 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 referenced document (including any amendment

21、s) applies. NOTE When an international publication 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-

22、100 2012 BS EN 60811-606:2012 2 60811-606 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 Suspension method (general method) . 6 4.2.1 Testing materials and equipment . 6 4.2.2 Procedure 7 4.3 Pycnometer meth

23、od (reference method) 7 4.3.1 Testing equipment . 7 4.3.2 Sample and test piece preparation 7 4.3.3 Conditioning 7 4.3.4 Procedure 7 4.3.5 Calculation 8 4.4 Apparent mass method 8 4.4.1 Testing equipment . 8 4.4.2 Sampling and preparation of test pieces 8 4.4.3 Conditioning 8 4.4.4 Procedure 8 4.4.5

24、 Calculation 8 4.5 Correction for filled polyethylene (PE) . 9 5 Test report 9 Bibliography 10 BS EN 60811-606:201260811-606 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 t

25、o 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 been developed and used over man

26、y 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. BS EN 60811-606:2012 6 60811-606 IEC:2012 ELECTRIC AND OPTIC

27、AL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 606: Physical tests Methods for determining the density 1 Scope This Part 606 of IEC 60811 descries the methods for determining the density for the most common types of insulating and sheathing compounds (cross-linked, PVC, PE, PP, etc.).

28、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 referenced document (including any amend

29、ments) applies. IEC 60811-100:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 100: General 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

30、 used in conjunction with IEC 60811-100. Unless otherwise specified, tests shall be carried out at room temperature. 4.2 Suspension method (general method) 4.2.1 Testing materials and equipment These shall comprise: a) ethanol (ethyl-alcohol) of analytical grade or another suitable liquid for densit

31、ies below 1 g/ml; b) zinc chloride solution for densities equal to or greater than 1 g/ml; c) distilled or deionized water; d) mixing cylinder; e) thermostat; f) hydrometer calibrated at (23,0 0,1) C; g) thermometer graduated in tenths of a degree Celsius. BS EN 60811-606:201260811-606 IEC:2012 7 4.

32、2.2 Procedure From the insulation or the sheath to be tested, a sample shall be taken perpendicularly to the conductor axis and cut into small pieces of 1 mm to 2 mm edge length. The density shall be determined by putting the sample in suspension in a liquid which does not react with the material to

33、 be tested. The following liquids are suitable: for a density expected to be lower than 1 g/ml, a mixture of ethanol and water; for a density of 1 g/ml and higher, a mixture of zinc chloride and water. Three pieces of the sample shall be placed in the liquid at a temperature of (23,0 0,5) C, avoidin

34、g any formation of air bubbles. Distilled water shall be added to the liquid until the pieces are freely suspended within the liquid in the mixing cylinder. The liquid mixture shall be homogeneous and maintained at the indicated temperature. The density of the liquid mixture shall be determined by m

35、eans of the hydrometer and indicated to three decimal places; the determined density is the same as that of the samples under test. NOTE The gradient method specified in ISO 1183 may also be used. 4.3 Pycnometer method (reference method) 4.3.1 Testing equipment The testing equipment for this method

36、consists of a balance with a precision of 0,1 mg, a pycnometer of 50 ml capacity, a liquid bath provided with a thermostatic control, immersion liquid (ethyl alcohol, 96 %). 4.3.2 Sample and test piece preparation The test piece shall be taken from the bare insulation or sheath. The mass of the test

37、 piece shall be not less than 1 g and not greater than 5 g. The test piece shall be made by cutting the sample of insulation or sheath into a number of small pieces; small tubes of insulation and sheath shall be cut longitudinally into two or more parts to prevent the enclosure of air bubbles. 4.3.3

38、 Conditioning The test pieces shall be conditioned at a temperature of (23 2) C. 4.3.4 Procedure After weighing the pycnometer empty and dry, a suitable quantity of the test piece shall be weighed in the pycnometer. The test piece shall be covered with the immersion liquid (alcohol, 96 %) and all ai

39、r removed from the test piece by, for example, applying a vacuum to the pycnometer standing in a desiccator. Any vacuum applied shall be broken and the pycno-meter filled with immersion liquid which shall be brought to a temperature of (23 0,5) C in a liquid bath, the pycnometer being filled to the

40、limits of its capacity. The pycnometer shall be wiped dry and weighed with its contents, after which it shall be emptied and filled with immersion liquid. Air shall be removed and the weight of the pycnometer and its contents determined at a temperature of (23 0,5) C. BS EN 60811-606:2012 8 60811-60

41、6 IEC:2012 4.3.5 Calculation The density of the insulation and sheath shall be calculated as follows: density at 23 C = dmmm21where m is the mass of test piece, in grams; m1 is the mass of liquid required to fill the pycnometer, in grams; m2 is the mass of liquid required to fill the pycnometer, whe

42、n containing the test piece, in grams; d is the density of ethyl alcohol, 96 %, at 23 C and is equal to 0,798 8 g/ml. 4.4 Apparent mass method 4.4.1 Testing equipment The testing equipment for this method consists of an analytical balance with a precision of 0,1 mg suitable to weigh a suspended samp

43、le, a liquid bath, immersion liquid: deionized (or distilled) water or ethyl alcohol (96 %). 4.4.2 Sampling and preparation of test pieces The test piece shall be taken from the bare insulation or sheath. The mass of the test piece shall be not less than 1 g and not greater than 5 g. The test piece

44、shall be made by cutting the sample of insulation or sheath into one or more small pieces; small tubes of insulation and sheath shall be cut longitudinally into two or more parts to prevent the enclosure of air bubbles. 4.4.3 Conditioning The test pieces shall be conditioned at a temperature of (23

45、2) C. 4.4.4 Procedure The test piece shall first be weighed in air. The test piece shall then be fixed to a suitable hook and the hook with the test piece hung up in the balance. Subsequently, the test piece shall be immersed in distilled or deionized water (or ethyl alcohol, 96 %, if the density is

46、 expected to be lower than 1 g/ml) at (23 5) C and its apparent mass determined. Care shall be taken that the test piece is fully covered by the liquid and that the surface is free of bubbles before the apparent mass is recorded. It may be necessary to add a small quantity of a surface active agent

47、to ensure elimination of all bubbles. The recorded mass shall be corrected for the apparent mass of the empty hook in the immersion liquid. 4.4.5 Calculation The density, in grams per millilitre of the insulation and sheath, may be calculated as follows: density at 23 C =ammmwhere m is the mass of t

48、he test piece in air (in grams); BS EN 60811-606:201260811-606 IEC:2012 9 mais the apparent mass of the test piece in water (in grams). NOTE Where the immersion liquid is water, the density is assumed to be 1,0 g/ml. If ethyl alcohol, 96 %, is used, the value of mashould be corrected for the density

49、 of the alcohol (0,798 8 g/ml at 23 C). 4.5 Correction for filled polyethylene (PE) Antioxidants and organic coloured pigments which are normally used in negligible quantities may be neglected. However, where other additives such as mineral fillers are used in considerable quantities, an appropriate correction shall be made. This shall be done by determining the nature and quantity of the additive by reputable chemical means using the formula: cFFccFm