BS-9925-02.0-1987 IEC-60723-3-1985 QC-250200-1985.pdf
《BS-9925-02.0-1987 IEC-60723-3-1985 QC-250200-1985.pdf》由会员分享,可在线阅读,更多相关《BS-9925-02.0-1987 IEC-60723-3-1985 QC-250200-1985.pdf(14页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 9925-02.0: 1987 IEC 723-3: 1985 QC 250200: 1985 Harmonized system of quality assessment for electronic components Inductor and transformer cores for telecommunications Part 02.0: Sectional specification: Magnetic oxide cores for broad-band transformers IEC title. Inductor and tra
2、nsformer cores for telecommunications Part 3: Sectional specification: Magnetic oxide cores for broad-band transformers UDC 621.3.042.1:621.318.435 + 621.314:621.39 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:21 GMT+00:00 2006, Uncontrolled Copy, (c) B
3、SI BS 9925-02.0:1987 This British Standard, having been prepared under the direction of the Electronic Components Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 July 1987 BSI 01-2000 The following BSI references relate to the work on this stand
4、ard: Committee reference ECL/20 Draft for comment 83/28820 DC ISBN 0 580 14056 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Components Standards Committee (ECL/-) to Technical Committee ECL/20, upon which the following bo
5、dies were represented: Electronic Components Industry Federation Electronic Engineering Association Ministry of Defence National Supervising Inspectorate Telecommunication Engineering and Manufacturing Association (TEMA) Amendments issued since publication Amd. No.Date of issueComments Licensed Copy
6、: London South Bank University, London South Bank University, Fri Dec 08 02:06:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-02.0:1987 BSI 01-2000 i Contents Page Committees responsibleInside front cover National forewordii Section 1. Scope1 Section 2. General1 2.1Related documents1 2.2Class
7、ification1 Section 3. Quality assessment procedures1 3.1Formation of inspection lots and test methods1 3.2Inspection for qualification approval2 3.3Fixed sample size qualification approval test schedule2 3.4Quality conformance inspection3 Section 4. Additional information3 Section 5. Blank detail sp
8、ecification3 5.1Identification of the specification3 5.2Identification of the core4 5.3Limiting conditions (not for inspection purposes)4 5.4Marking4 5.5Ordering information5 5.6Related documents5 5.7Additional specifications or test details5 5.8Certified test records5 Publications referred toInside
9、 back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-02.0:1987 ii BSI 01-2000 National foreword This Part of BS 9925 has been prepared under the direction of the Electronic Components Standards C
10、ommittee. It is identical with IEC Publication 723-3 (QC 250200) “Inductor and transformer cores for telecommunications. Part 3: Sectional specification: Magnetic oxide cores for broad-band transformers”, published in 1985 by the International Electrotechnical Commission (IEC). This standard is a ha
11、rmonized specification within the IECQ system of quality assessment for electronic components, the basic rules of which are given, in the UK, in BS 9000. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without de
12、viation. Some terminology and certain conventions are not identical with those used in British Standards. Cross-references International StandardsCorresponding British Standards BS 2011 Basic environmental testing procedures IEC 68-1:1982Part 1.1:1983 General and guidance (Identical) IEC 68-2-1:1974
13、Part 2.1A:1977 Tests A. Cold (Identical) IEC 68-2-2:1974Part 2.1B:1977 Tests B. Dry heat (Identical) IEC 133:1985BS 4061:1966 Specification for dimensions of pot cores made of ferromagnetic oxides for use in telecommunication and allied electronic equipment (Technically equivalent) IEC 205:1966 plus
14、 supplements 205A (1968) and 205B (1974) BS 6454:1983 Method for calculation of the effective parameters of magnetic piece parts (Identical) BS 5938 Cores for inductors and transformers for telecommunications IEC 367-1:1982Part 1:1984 Methods of measurement (Identical) IEC 367-2:1974 plus supplement
15、 367-2A (1976) Part 2:1980 Guide to the drafting of performance specifications (Identical) IEC 424:1973BS 6786:1986 Guide to the specification of limits for physical imperfections of parts made from magnetic oxides (Identical) IEC 431:1983BS 6555:1984 Specification for dimensions of square cores (RM
16、-cores) made of magnetic oxides and associated parts (Identical) BS 9925 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications IEC 723-1:1982 (QC 250000) Part 0:1984 Generic specification (Identical) Licensed Copy: London South Bank
17、University, London South Bank University, Fri Dec 08 02:06:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-02.0:1987 BSI 01-2000iii At present there is no corresponding British Standard for IEC Publication 226, which is referred to in the text. The Technical Committee has reviewed the provisio
18、ns of this IEC Publication and has decided that they are acceptable for use in conjunction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Britis
19、h Standard does not of itself confer immunity from legal obligations. International StandardsCorresponding British Standards IEC 723-3-1:1985 (QC 250201) (QC 250202) Parts 02.01 and 02.02:1987 Blank detail specification: Magnetic oxide cores for broad-band transformers. Assessment levels A and B (Id
20、entical) Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on t
21、he inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:21 GMT+00:00 2006, Uncontrolled Copy,
22、(c) BSI BS 9925-02.0:1987 BSI 01-20001 Section 1. Scope This sectional specification lists the characteristics, ratings and also the inspection requirements for magnetic oxide cores of assessed quality forming a substantially closed magnetic circuit intended for broad-band transformers for professio
23、nal and industrial applications, excluding power and tuned transformers. It selects from the generic specification, IEC Publication 723-1, and from the basic specification, IEC Publication 367-1, the appropriate methods of test to be used in detail specifications derived from this specification, in
24、accordance with the corresponding blank detail specification. Section 2. General 2.1 Related documents 2.2 Classification A core is classified by: a) Shape: e.g. pot core, X core, RM core . b) Size: e.g. 18 11, X 22, RM 6 . c) Class or material grade: (combined electromagnetic properties, for exampl
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-9925-02.0-1987 IEC-60723-3-1985 QC-250200-1985 BS 9925 02.0 1987 IEC 60723 1985 QC 250200
链接地址:https://www.31doc.com/p-3736873.html