BS EN 60811-601-2012 Electric and optical fibre cables Test methods for non-metallic materials Physical tests Measurement of the drop point of filling compounds《电缆和光缆 非金属材料试验方法 物理试.pdf

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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 601: Physical tests Measurement of the drop point of filling compoundsBS EN 60811-601:2012National f

2、orewordThis British Standard is the UK implementation of EN 60811-601:2012. It isidentical to IEC 60811-601:2012. 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Superseded standards are withdrawnThe UK participation in its preparation was entr

3、usted 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 acontract. Users

4、are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65338 4ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the author

5、ity of the StandardsPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-601:2012BS 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 60

6、811-5-1:2000 -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 60811-1-4:1995 -50

7、8, -509 BS EN 60811-3-1:1995EUROPEAN STANDARD EN 60811-601 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

8、 - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60811-601:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-5-1:1999 (partially) + A1:2004 (partially)English version Electric and optical fibre cables - Test

9、 methods for non-metallic materials - Part 601: Physical tests - Measurement of the drop point of filling compounds (IEC 60811-601:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques - Partie 601: Essais physiques - Mesure du point de goutte des matires de rem

10、plissage (CEI 60811-601:2012) Kabel, isolierte Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 601: Physikalische Prfungen - Messung des Tropfpunktes von Fllmassen (IEC 60811-601:2012) This European Standard was approved by CENELEC on 2012-04-17. CENELEC members are b

11、ound 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 national standards may be obtained on application to the

12、 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 its own language and notified to the CEN-CENELEC Manageme

13、nt 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, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg

14、, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-601:2012 - 2 - Foreword The text of document 20/1310/FDIS, future edition 1 of IEC 60811-601, prepared by IEC/TC 20 “Electric cables“ was submitted to

15、the IEC-CENELEC parallel vote and approved by CENELEC as EN 60811-601:2012. 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 s

16、tandards conflicting with the document have to be withdrawn (dow) 2015-04-17 This document supersedes Clause 4 of EN 60811-5-1:1999 + A1:2004 (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 60811-5-1:1999 + A1

17、: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 CEN shall not be held responsible for identifying any o

18、r 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 IEC 60811-601:2012 was approved by CENELEC as a European

19、 Standard without any modification. BS EN 60811-601:2012- 3 - EN 60811-601:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are ind

20、ispensable 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 modified by common modifications, indicated by (mod), the re

21、levant 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 BS EN 60811-601:2012 2 60811-601 IEC:2012 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Te

22、rms and definitions . 6 4 Test method . 6 4.1 General . 6 4.2 Method A (reference method) 6 4.2.1 Apparatus 6 4.2.2 Test procedure 7 4.2.3 Expression of results . 7 4.3 Method B . 7 4.3.1 Apparatus 7 4.3.2 Test procedure 8 4.3.3 Expression of results . 8 5 Test report 8 Bibliography 13 Figure 1 Cup

23、(Method A) 9 Figure 2 Assembled apparatus (Method A) 10 Figure 3 Cup (Method B) 11 Figure 4 Thermometer and sleeve 11 Figure 5 Case 11 Figure 6 Assembled apparatus (Method B) 12 BS EN 60811-601:201260811-601 IEC:2012 5 INTRODUCTION The IEC 60811 series specifies the test methods to be used for testi

24、ng 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 typically used for insulating, sheathing, bedding, filling or taping within cables. NOTE 2 These test meth

25、ods 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 other cables, in particular optical fibre cables, communication and control cables and cables for ships and

26、offshore applications. BS EN 60811-601:2012 6 60811-601 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 601: Physical tests Measurement of the drop point of filling compounds 1 Scope This Part 601 of IEC 60811 specifies the test procedure for measuring the dro

27、p point of filling 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 references, only the edition cited applies. For undated references, the latest edition of the referenced

28、 document (including any amendments) 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 T

29、his part of IEC 60811 shall be used in conjunction with IEC 60811-100. Unless otherwise specified, tests shall be carried out at room temperature. The drop point test may be used as an indication of the maximum temperature to which a filling compound can be exposed without complete liquefaction or e

30、xcessive oil separation. In case of dispute, method A shall be used as reference method. 4.2 Method A (reference method) 4.2.1 Apparatus The apparatus consists of the following parts: a) A chromium plated brass cup conforming to the dimensions shown in Figure 1. b) A heat-resistant glass test tube c

31、onforming to the dimensions shown in Figure 2 with three indentations to support the cup. c) Thermometers with a range 5 C to 300 C (76 mm immersion) marked in degrees Celsius with a scale accuracy of 1 C. The bulb lengths shall be 10 mm to 15 mm, and the bulb diameters shall be 5 mm to 6 mm. BS EN

32、60811-601:201260811-601 IEC:2012 7 d) An oil bath consisting of a 400 ml beaker and suitable oil, a ring stand and ring for the support of the oil bath, clamps for the thermometers, two corks as shown in Figure 2, a polished metal rod 1,2 mm to 1,6 mm in diameter and 150 mm in length, and a suitable

33、 means for heating and stirring the oil bath. 4.2.2 Test procedure Place the corks on one of the thermometers as shown in Figure 2 and adjust the position of the upper cork so that the tip of the thermometer bulb is about 3 mm above the bottom of the cup when the apparatus is assembled for test. Sus

34、pend a second thermometer in the oil bath so that its bulb is at approximately the same level as the bulb of the thermometer in the test tube. Fill the cup by presenting its larger opening into the filling compound until the cup is filled, taking care to avoid working the filling compound as far as

35、possible. Cut away any excess compound. The cup shall be held in a vertical position with its smaller opening at the bottom while it is gently pressed down over the metal rod until the rod protrudes about 25 mm above the larger opening. Press the rod against the cup in such a manner that the rod mak

36、es contact with both the upper and lower peripheries of the cup. Maintain this contact while rotating the cup around its axis and simultaneously moving the cup down the rod until the cup passes over the lower end of the rod. This spiral-like motion will cause the compound to adhere along the rod lea

37、ving a conical void of compound in the cup and a compound coating having reproducible geometry on the inside of the cup. Place the cup and the thermometer in the test tube and suspend the test tube in the oil bath with the oil level within 6 mm of the rim. If the cork holding the thermometer in the

38、test tube has been properly chosen, the 76 mm immersion mark on the thermometer will coincide with the lower edge of the cork. The assembly should be immersed to this point. Stir the oil bath and heat at a rate of 4 K/min to 7 K/min until the bath reaches a temperature approximately 17 C below the e

39、xpected drop point of the compound. Then reduce the rate of heating so that the temperature in the test tube will be within 2 C or less of the temperature in the oil bath before the oil bath temperature increases an additional 2,5 K. Continue heating at a rate such that the difference between the te

40、mperature in the test tube and in the oil bath is maintained between 1 C and 2 C. This condition is established when the oil bath is heated at a rate of about 1 K/min to 1,5 K/min. As the temperature increases, material will gradually protrude through the orifice of the cup. When the first drop of m

41、aterial falls, note the temperature on the two thermometers. 4.2.3 Expression of results Record the average of the two thermometers as the drop point of the filling compound. 4.3 Method B 4.3.1 Apparatus The apparatus consists of the following parts: a) A chromium plated brass cup conforming to the

42、dimensions shown in Figure 3. The cup may be made from another suitable metal which is not affected by the compound being tested. The top of the cup and the bottom of the tube forming the orifice are smooth, parallel to each other, and at right angles to the axis of the cup. The wide part of the cup

43、 has an approximately hemispherical lower portion and an internal depth such that when a steel ball 7,0 mm in diameter is placed in the cup, the top of the ball is (12,2 0,15) mm above the bottom of the tube forming the orifice. The bottom edge of the orifice should have neither chamfer nor radius.

44、b) A cylindrical metal sleeve, attached to the thermometer, and a metal case which screws to the sleeve, conforming to the dimensions shown in Figures 4 and 5. The metal sleeve is BS EN 60811-601:2012 8 60811-601 IEC:2012 fixed to the thermometer so that, when the metal case is screwed on to the sle

45、eve, the bottom of the thermometer bulb is (8,0 0,1) mm below the rim stop and the thermometer stem is coaxial with the sleeve and case. The thermometer is fixed to the sleeve with cement that is suitable for the temperature range of the thermometer. c) Thermometers with a range of 20 C to 120 C (10

46、0 mm immersion) marked in degrees Celsius with a scale accuracy of 1 C. The bulb length shall be 6 mm maximum with bulb diameter between 3,35 mm and 3,65 mm. d) A heat-resistant, glass test tube (110 2) mm long and with a (25 1) mm internal diameter. e) A beaker large enough to allow the test tube t

47、o be immersed vertically to two-thirds of its length in the liquid heating medium and with the bottom of the tube being about 25 mm above the bottom of the beaker. f) A stirrer to ensure uniformity of temperature throughout the bath. g) A stand to hold the test tube and the bath thermometer and to s

48、upport the beaker above the heat source. h) A gas burner capable of heating the liquid bath at the specified rate. NOTE Water is recommended as the heating medium for drop points below 80 C, and glycerol or white oil for higher drop point materials. 4.3.2 Test procedure By means of a spatula, fill t

49、he cup with the compound and cut away any excess material. Take precautions to exclude air bubbles, but do not melt the compound. Push the cup, without lateral movement, into the metal case as far as the stop and cut away any excess material squeezed out of the bottom. Take care that the orifices in the side of the metal case are not blocked. Fit the thermometer, with the cup attached, centrally in the test tube, through a bored cork having a side notch, so that the bottom

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