1、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 60672-2:2000 IEC 60
2、672-2:1999 The European Standard EN 60672-2:2000 has the status of a British Standard ICS 29.035.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Ceramic and glass insulating materials Part 2: Methods of testThis British Standard, having been prepared under the direction of
3、the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2000 BSI 06-2000 ISBN 0 580 34820 2 BS EN 60672-2:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the offici
4、al English language version of EN 60672-2:2000. It is identical with IEC 60672-2: Ed 2:1999. The UK participation in its preparation was entrusted by Technical Committee GEL/15, Insulating materials, to Subcommittee GEL/15/3, Material specifications, which has the responsibility to: aid enquirers to
5、 understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represent
6、ed on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other,
7、 publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which
8、 implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all
9、 the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title
10、 page, pages 2 to 43, two annex ZA pages and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.Page 2 EN 60672-2:2000 %6, see 5.2, note 6 Flexural strength 10 See table 3 7 Modulus of elasticity 3 Bar-shaped, preferably with a support span-
11、to-thickness ratio 50; see 7.3 8 Mean coefficient of linear thermal expansion 2 Appropriate to the apparatus used 9 Specific heat capacity 2 Appropriate to the apparatus used 10 Thermal conductivity 2 Appropriate to the apparatus used; see 10.2 11 Thermal shock 30 Rods 10 mm diameter 120 mm long 12
12、Glass transition temperature (T J , for glass only) 2 Appropriate to the apparatus used 13 Electric strength 10 Discs as described in 13.3 14 Withstand voltage 10 Discs as described in 13.3 15 Relative permittivity/ dissipation factor 3 Discs in accordance with IEC 60250, as described in clause 15 1
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