BS-9925-01.0-1984 IEC-60723-2-1983 QC-250100-1983.pdf
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1、BRITISH STANDARD BS 9925-01.0: 1984 IEC 723-2: 1983 QC 250100: 1983 Harmonized system of quality assessment for electronic components Inductor and transformer cores for telecommunications Part 01.0: Sectional specification: Magnetic oxide cores for inductor applications IEC title: Inductor and trans
2、former cores for telecommunications Part 2: Sectional specification: Magnetic oxide cores for inductor applications UDC 621.3.042.1:621.318.435:621.39 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:08:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-01.
3、0:1984 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 28 September 1984 BSI 01-2000 The following BSI references relate to the work on this standard: Comm
4、ittee reference ECL/20 Draft for comment 81/24242 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 bodies were
5、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: London S
6、outh Bank University, London South Bank University, Fri Dec 08 02:08:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-01.0:1984 BSI 01-2000i Contents Page Committees responsibleInside front cover National forewordii Section 1. Scope Section 2. General 2.1Related documents1 2.2Classification1 Se
7、ction 3. Quality assessment procedures 3.1Formation of inspection lots and test methods1 3.2Inspection for qualification approval2 3.3Fixed sample size qualification approval test schedule2 3.4Quality conformance inspection2 Section 4. Additional information Section 5. Blank detail specification 5.1
8、Identification of the specification3 5.2Identification of the core3 5.3Limiting conditions (not for inspection purposes)4 5.4Marking4 5.5Ordering information4 5.6Related documents4 5.7Additional specifications or test details4 5.8Certified test records4 Publications referred toInside back cover Lice
9、nsed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:08:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-01.0:1984 ii BSI 01-2000 National foreword This Part of this British Standard has been prepared under the direction of the Electronic Components Standards Com
10、mittee. It is identical with IEC Publication 723-2(QC 250100) “Inductor and transformer cores for telecommunications Part 2: Sectional specification: Magnetic oxide cores for inductor applications”, published in 1982 by the International Electrotechnical Commission (IEC). This standard is a harmoniz
11、ed specification within the IECQ system of quality assessment for electronic components. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identic
12、al with those used in British Standards. NOTEIEC 367-1:1971 has been superseded by the 1982 second edition which contains additional test methods for (effective) amplitude permeability and magnetic properties under pulse conditions. At present there are no corresponding British Standards for the fol
13、lowing IEC Publications referred to in the text. IEC 133:1967, IEC 226:1967, IEC 424:1973, IEC 431:1983, IEC 525:1976 and also IEC 367-1:1982 (see note above). The Technical Committee has reviewed the provisions of these IEC Publications and has decided that they are acceptable for use in conjunctio
14、n with this standard. Cross-references International StandardsCorresponding British Standards IEC 68-1:1982 BS 2011 Basic environmental testing procedures Part 1.1:1983 General and guidance (Identical) IEC 68-2-1:1974Part 2.1A:1977 Tests A. Cold (Identical) IEC 68-2-2:1974Part 2.1B:1977 Tests B. Dry
15、 heat (Identical) IEC 205:1966 plus supplements 205A (1968) and 205B (1974) BS 6454:1983 Method for calculation of the effective parameters of magnetic piece parts (Identical) IEC 367-1:1971 plus supplements 367-1A (1973) 367-1B (1973) 367-1C (1974) 367-1D (1977) BS 5938 Cores for inductors and tran
16、sformers for telecommunications Part 1:1980 Methods of measurement (Identical) IEC 367-2:1972 plus supplement 367-2A (1976) Part 2:1980 Guide to the drafting of performance specifications (Identical) IEC 723-1:1982 (QC 250000:1982) BS 9925 Harmonized system of quality assessment for electronic compo
17、nents. Inductors and transformer cores for telecommunications Part 0:1984 Generic specification (Identical) Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:08:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-01.0:1984 BSI 01-2000iii A British Standard do
18、es not purport to include all 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 ins
19、ide front cover, pages i to iv, pages 1 to 4, 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 the inside front cover. Licensed Copy: London South Bank University, Lon
20、don South Bank University, Fri Dec 08 02:08:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:08:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-01.0:1984 BSI 01-20001 Section 1. Scope This sectional
21、specification lists the characteristics, ratings and also the inspection requirements for magnetic oxide cores of assessed quality consisting of at least two parts forming a substantially closed magnetic circuit intended for inductors and tuned transformers for professional and industrial applicatio
22、ns. 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 accordance with the corresponding blank detail specification. The cor
23、es covered by this specification may be used with an adjuster to provide a change of inductance for tuning purposes. Section 2. General 2.1 Related documents IEC publications: 2.2 Classification A core is classified by: a) shape: for example Pot-core, X-core, RM-core, .; b) size: for example 18 11,
24、X 22, RM 6, .; c) class (combined electromagnetic properties, for example temperature coefficient and losses at given frequencies) or material grade. Since no systematic classification of the electromagnetic properties is available in the IEC, each detail specification shall clearly define the class
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