1、CENELEC ENxh0371-3- 3 $03 = 3404583 0364656 033 Specification for insulating materials based on mica Part 3. Specifications for individual materials Sheet 3. Specification for rigid mica materials for heating equipment The European Standard EN 6037133 : 1995 has the status of a British Standard ICs
2、29.040.20 UDC 621.315.613.1 : 620.1 : 621.317.3 BS EN 6037133 : 1995 IEC 371-3-3 : 1983 COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Services CENELEC EN+b0371-3- 3 95 = 3404583 IlLb4b57 T78 Amd.No. BS EN 60371-33 : 1995 Date Text affected Committe
3、es responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee GEU15, Insulating materials, upon which the following bodies were represented: British Ceramic Research Ltd. British Industrial Ceramic Manufacturers Association British Telecommuni
4、cations plc Department of Bade and Industry (National Physical Laboratory) Electrical and Electronic Insulation Association (BEAMA Ltd.) Electricity Association Federation of the Electronics Industry Minic;try of Defence Rotating Electrical Machines Association (BEAMA Ltd.) Bansmission and Distribut
5、ion Association (BEAMA Ltd.) The following bodies were also represented in the drafting of the standard, through subcommittees and panels: ERA Technology Ltd. Mica Trade Club This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the
6、 authority of the Standards Board and comes into effect on 15 December 1995 O BSI 1995 The following BSI references relate to the work on this standard Committee reference GEU15 Draft announced in BSZ News September 1995 ISBN O 580 24975 1 COPYRIGHT European Committee for Electrotechnical Standardiz
7、ationLicensed by Information Handling ServicesContents Committees responsible page inside front cover Nationai foreword ii Foreword 2 Text of EN 60371-33 3 i COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesCENELEC EN8b037L-3- 3 95 3404583 03b
8、4b59 840 = BS EN 6037133 : 1995 National foreword This British Standard has been prepared by Technid Committee GW15 and is the English language version of EN 60371-3-3 : 1995 Sp in this case, the binder shall have the necessary resistance to the operating temperature. The products may be supplied in
9、 sheets, strips or flat pieces. The minimum nominal thickness is 0.30 mm (mica Splittings) and 0.20 mm (mica paper). 2. General requirements The material as supplied shall be of uniform hardness, free from soft patches and foreign matter. The grade and visual characteristics of the Splittings, as we
10、ll as the nature of the mica paper and the bonding medium, shall be agreed between supplier and purchaser. 3. Detection of defects and conducting particles in sheets Until a method of detection of defects has been agreed for IEC Publication 371-2: Specification for Insulating Materials based on Mica
11、, Part 2: Methods of Test, the accepted type and number of defects is subject to agreement between supplier and purchaser. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Services CENELEC EN*b037L-3- 3 95 3i40V583 OL64bb3 271 1 2 3 Page 4 EN 60371-3-
12、3 : 1995 4 4. Thickness: measurements and tolerances Nominal thickness* The thickness shall be measured using the test specimen and procedure defined in IEC Publi- cation 371-2. The thickness (central value), in millimetres, shall not depart from the nominal thickness by more than the tolerances giv
13、en in Tables I and II. These tables also give the permitted differences between individual measurements on the same specimen. Thickness Individual measurements of specimen I TABLE I Thickness tolerances Materials based on mica Splittings Over 1.00 No tolerances specified Tolerance I 1 2 3 0.30 0.40
14、0.50 0.60 0.80 1 .o0 Nominal thickness (mm) f 0.06 f 0.06 f 0.07 f 0.08 kO.10 f 0.12 Tolerances Thickness Individual measurements of specimen (unground and ground) (mm) (mm) +0.20 -0.13 +0.20 -0.15 +0.25 -0.15 +0.25 -0.15 i-0.27 -0.17 +0.30 - 0.20 Subject to agreement between supplier and purchaser
15、TABLE II Thickness tolerances Materials based on mica paper 0.20 0.30 0.40 0.50 0.60 0.80 1.00 Over 1 .O0 f 0.04 f 0.04 f 0.04 f 0.05 f 0.05 f 0.06 f 0.07 - f 0.05 f 0.05 f 0.06 f 0.07 f 0.07 f0.10 f 10% t 0.08 I I I Intermediate thickness shall be supplied with the tolerances appropriate to the nex
16、t higher nominal thickness. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Services_ CENELEC ENmb037L-3- 3 95 I 34045133 0364664 LOB I 1 Page 5 EN 60371-3-3 : 1995 2 5. Characteristics Type HSl HS2 HS3 HP4 HP5 HP6 Table III gives the specified value
17、s for the characteristics of rigid mica materials for heating equip- ment, in whatever form they are delivered. Description Muscovite splittings with organic binder Phlogopite splittings with organic binder Muscovite splittings with silicon resin binder Mica paper with organic binder Mica paper with
18、 silicon resin binder Mica paper with inorganic binder TABLE III Characteristics of built-up mica materials for heating equipment 3 Maximum binder content 5.0 5.0 10.0 6.0 12.0 - 4 Minimum electric strength (kV/mm) 5 1.9 to 2.5 2.0 to 2.6 1.8 to 2.4 2.0 to 2.4 1.6 to 2.1 - 6. Flexural strength Under
19、 consideration. 7. Availability Rigid mica material for heating equipment is generally available : - in sheets approximately 1 m long and 0.5 m to 1 m wide; - in strips not more than 200 mm wide cut from sheets; - as flat pieces cut to the dimensions specified in the purchase order. 8. Marking Packa
20、ges shall be marked with the following information: a) the IEC publication reference and the type of product, for example 371-3-3 Type HS3; b) manufacturers name or trade mark; c) nominal thickness and dimensions; d) number of pieces and/or weight in each package. COPYRIGHT European Committee for El
21、ectrotechnical StandardizationLicensed by Information Handling Services CENELEC ENab037L-3- 3 95 m 3404583 OLb4bb5 044 m Page 6 EN 6037133 : 1995 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates
22、 by dated or undated reference, provisions from other publications. These nonnative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European St
23、andard oniy when incorporated in it by amendment or revision. For undated references the latest edition of the publidon referred to applies. NOTE. When the international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/H
24、D Year IEC 371-2 1973 Spefiation for insulating vrmkmds * basedon EN6037133 1978 mica Part2: Methods of test COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesList of references See national foreword. COPYRIGHT European Committee for Electrotec
25、hnical StandardizationLicensed by Information Handling Services CENELEC ENub037L-3- 3 95 m 3404583 01b4bb7 927 m BS EN 60371-33 : 1995 IEC 371-3-3 : 1983 BSI 389 Chiswick High Road London w4 4AL 9512-54l.36k- FP BSI - British Standards Institution BSI is the independent national body responsible for
26、 preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Contract requirements A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsibl
27、e for their correct application. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. Any person who finds an inaccuracy or ambiguity while using this British Standard should bring it to the
28、 attention of the Quality Manager, BSI without delay so that the matter may be investigated swiftly. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international
29、 and foreign standards publications should be addressed to Customer SeMces, Sales Department at Chiswick Tel O181 996 7000; Fax: O181 996 7001. in response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards,
30、 unless othenvise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library, the Standardiine Database, the BSI Information Technology Service (BrrS) and its Technical Help to Exporters Service. Contact the Info
31、rmation Department at Chiswick Tel O181 996 7111; Fax: O181 996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Customer Services, Membership at Chis
32、wick Tel 0181 996 7002; Fax: O181 996 7001. Copyright Copyright subsists in all BSI publications and no part may be reproduced in any form without the prior permission in writing of BSI. This does not preclude the free use, in the come of implementing the standard of necessary detaiIs such as symbol
33、s and size, type or grade designations includmg use by incorporation into computer programs, but where these details are reproduced including without iimitation in printed form, in computer programs or in any other form whatsoever, the permission in writing of BSI must be obtained and if granted wil
34、l be on tem including royalty, before the product is sold, licensed or otherwise exploited for commercial gain. Enquiries about copyright should be made to the Copyright Manager at Chiswick. SBN O 680 24976 1 Product code 00633324 GEiJ15 COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Services
