BS EN 60216-2-2005 Electrical insulating materials Thermal endurance properties Determination of thermal endurance properties of electrical insulating materials Choice of test crit.pdf

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2、 Choice of test criteriaThe European Standard EN 60216-2:2005 has the status of a British StandardICS 17.220.99; 29.035.01Electrical insulating materials Thermal endurance BRITISH STANDARDBS EN 60216-2:2005BS EN 60216-2:2005This British Standard was published under the authority of the Standards Pol

3、icy and Strategy Committee on 2 December 2005 BSI 2 December 2005ISBN 0 580 47277 9A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this doc

4、ument may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract.

5、 Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover.The BS

6、I copyright date displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date Comments present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed;

7、monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN 60216-2:2005. It is identical with IEC 60216-2:2005. It supersedes BS 5691-2:1995 which is withdrawn.The UK participation in its

8、 preparation was entrusted by Technical Committee GEL/15, Insulating material, to Subcommittee GEL/15/5, Methods of test, which has the responsibility to: aid enquirers to understand the text;EUROPEAN STANDARD EN 60216-2 NORME EUROPENNE EUROPISCHE NORM October 2005 CENELEC European Committee for Ele

9、ctrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref

10、. No. EN 60216-2:2005 E ICS 17.220.99; 29.035.01 Supersedes HD 611.2 S1:1992English version Electrical insulating materials Thermal endurance properties Part 2: Determination of thermal endurance properties of electrical insulating materials Choice of test criteria (IEC 60216-2:2005) Matriaux isolan

11、ts lectriques Proprits dendurance thermique Partie 2: Dtermination des proprits dendurance thermique de matriaux isolants lectriques Choix de critres dessai (CEI 60216-2:2005) Elektroisolierstoffe Eigenschaften hinsichtlich des thermischen Langzeitverhaltens Teil 2: Leitfaden zur Bestimmung thermisc

12、her Langzeiteigenschaften von Elektroisolierstoffen Auswahl der Prfmerkmale (IEC 60216-2:2005) This European Standard was approved by CENELEC on 2005-08-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard

13、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 Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French,

14、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 Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cypr

15、us, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 2 Foreword The text of document 15E/257/FDIS, futu

16、re edition 4 of IEC 60216-2, prepared by SC 15E*, Methods of test, of IEC TC 15, Insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60216-2 on 2005-08-01. This European Standard supersedes HD 611.2 S1:1992. The main changes from HD 611.2 S1 are as

17、follows: editorial; Table 1 has been actualized essentially by Part 3 sheets of IEC/SC 15C publications. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2006-05-01 latest date

18、 by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-08-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60216-2:2005 was approved by CENELEC as a European Standard without any modification. _ *Subcommittee 15E

19、 has been merged with technical committee 98 into the new technical committee 112. EN 60216-2:2005 3 CONTENTS FOREWORD.21 Scope 5 2 Normative references .5 3 General considerations.7 4 Guide for the choice of properties and end-points7 Annex A (informative) Additional Information on the group to whi

20、ch new or unknown materials should be assigned .11Annex ZA (normative) Normative references to international publications with their correspondingEuropean publications 14 EN 60216-2:2005 4 4 The text of this standard is based on the following documents: FDIS Report on voting 15E/257/FDIS 15E/259/RVD

21、 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 Directives, Part 2. IEC 60216: Electrical insulating materials Properties of thermal endurance, consis

22、ts of six parts: Part 1: Ageing procedures and evaluation of test results Part 2: Choice of test criteria Part 3: Instructions for calculating thermal endurance characteristics Part 4-1: Ageing ovens Section 1: Single-chamber ovens Part 4-2: Ageing ovens Precision ovens for use up to 300 C Part 4-3:

23、 Ageing ovens Multi-chamber ovens Part 5: Determination of relative thermal endurance index (RTE) of an insulating material Part 6: Determination of thermal endurance indices (TI and RTE) of an insulating material using the fixed time frame method NOTE This work may be continued. For revisions and n

24、ew parts, see the current catalogue of IEC publications for an up-to-date list. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publ

25、ication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. EN 60216-2:2005 5 ELECTRICAL INSULATING MATERIALS THERMAL ENDURANCE PROPERTIES Part 2: Determination of thermal endurance properties of electrical insulating materials Choice of test cri

26、teria 1 Scope This part of IEC 60216 gives guidance for the choice of test criteria for the determination of thermal endurance characteristics. It includes a list of existing published procedures which is however not exhaustive. 2 Normative references The following referenced documents are indispens

27、able for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60172, Test procedure for the determination of the temperature index of enamelled winding wir

28、es IEC 60216-3, Electrical insulating materials Thermal endurance properties Part 3: Instructions for calculating thermal endurance characteristics IEC 60216-5, Electrical insulating materials Thermal endurance properties Part 5: Determination of relative thermal endurance index (RTE) of an insulati

29、ng material IEC 60216-6, Electrical insulating materials Thermal endurance properties Part 6: Determination of thermal endurance indices (TI and RTE) of an insulating material using the fixed time frame method IEC 60243-1, Electrical strength of insulating materials Test methods Part 1: Tests at pow

30、er frequencies IEC 60317 (all parts), Specifications for particular types of winding wires IEC 60370, Test procedure for thermal endurance of insulating varnishes Electric strength method IEC 60371 (all parts), Specification for insulating materials based on mica IEC 60394 (all parts), Varnished fab

31、rics for electrical purposes IEC 60450, Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials IEC 60454 (all parts), Specifications for pressure-sensitive adhesive tapes for electrical purposes EN 60216-2:2005 6 6 IEC 60455 (all

32、parts), Resin based reactive compounds used for electrical insulation IEC 60464 (all parts), Varnishes used for electrical insulation IEC 60554 (all parts), Specification for cellulosic papers for electrical purposes IEC 60626 (all parts), Combined flexible materials for electrical insulation IEC 60

33、641 (all parts), Specification for pressboard and presspaper for electrical purposes IEC 60667 (all parts), Specification for vulcanized fibre for electrical purposes IEC 60674 (all parts), Specification for plastic films for electrical purposes IEC 60684 (all parts), Flexible insulating sleeving IE

34、C 60763 (all parts), Specification for laminated pressboard IEC 60819 (all parts), Non-cellulosic papers for electrical purposes IEC 60893 (all parts), Insulating materials Industrial rigid laminated sheets based on thermosetting resins for electrical purposes IEC 61033, Test methods for the determi

35、nation of bond strength of impregnating agents to an enamelled wire substrate ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 178, Plastics Determination of flexural properties ISO 179-1, Plastics Determination of Charpy impact properties Non-instrum

36、ented impact test ISO 527-2 , Plastics Determination of tensile properties Test conditions for moulding and extrusion plastics ISO 527-3, Plastics Determination of tensile properties Test conditions for films and sheets ISO 1520, Paints and varnishes Cupping test ISO 1924 (all parts), Paper and boar

37、d Determination of tensile properties ISO 2759, Board Determination of bursting strength ISO 8256, Plastics Determination of tensile-impact strength EN 60216-2:2005 7 3 General considerations The determination of the thermal endurance of electrical insulating materials is described in IEC 60216-1, I

38、EC 60216-3, IEC 60216-5 and IEC 60216-6. IEC 60216-1 gives experimental details for the ageing of test specimens and determining the gradual deterioration of the property selected as the test criterion. IEC 60216-3 gives details of the procedures for evaluation of the experimental data. IEC 60216-5

39、gives experimental details for determining the relative thermal endurance of a material and details of the procedures for evaluation of the experimental data. IEC 60216-6 provides an alternate experimental method for determining the thermal endurance of a material and details of the procedures for e

40、valuation of the experimental data. This standard is concerned with the selection of the test properties and end-point levels. The thermal endurance behaviour of a material cannot be adequately represented by a single number. At least two shall be given: temperature index TI (or relative thermal end

41、urance index RTE), and halving interval HIC. Even so, the values of these numbers are highly dependent on the chosen property and end-point, and may be dependent on the dimensions of the test specimen, especially the thickness. The selection of a property should reflect the function of the material

42、in its application, as stated in IEC 60216-1. 4 Guide for the choice of properties and end-points Where an international specification exists for a particular insulating material, the property and end-point called for in that specification shall be used to determine the thermal endurance characteris

43、tic value(s) needed to claim compliance with the specification. See the current catalogue of IEC publications for an up-to-date list of specifications. For the choice of properties and end-points, Clause 5 and Table 1 provide guidance. Further advice is given in Annex A. To evaluate thermal enduranc

44、e characteristics, an end-point of 50 % of the initial value of the property is often used. Although, on account of the high cost of thermal endurance testing, it is frequently desirable to select a single property and end-point to give a result representative of the thermal endurance behaviour of a

45、 material, this information may be inadequate for use in all applications of the material. In such cases, alternative criteria should be chosen that are more appropriate to the application and the function of the material, when, e.g. the 50 % of initial value end-point has no fundamental significanc

46、e and a 25 % of initial value end-point is more indicative of the application. Alternative end-points considered likely to be valuable in such cases are also indicated in Table 1. The information in Table 1 is given, for convenience, in relation to materials grouped according to their salient mechan

47、ical or chemical features. Annex A explains the main features of each group; this may be helpful to assign a non-listed material to the right group. EN 60216-2:2005Table 1 Examples ofinsulating materials, with recommended testpropertiesand end-points 1 2 3 4 5 Recommended end-points Insulating mater

48、ials Material specification Publication No. Recommended properties Preferred Subsidiary5)Type1)Test method Publication No. Rigid materials ARigid laminates Vulcanized fibre products Preimpregnated fibre products(prepregs) Rigid mica ormica-paper productsIEC 60893 IEC 60667 IEC 60371 Flexural strengt

49、h Voltage 1-min proof test Loss ofmass 50 % 6 kV 5 % 25 %; 75% 3 kV; 10 kV3 %; 10% R A L ISO 178 IEC 60243-1 Rigid materials B Reinforced/filled thermosettingmoulded and cast insulationReinforced/filled thermoplastic moulded and cast insulation Flexural strength Tensile strength Loss ofmass Charpyimpact strength Breakdown voltage 50 % 50 % 3