BS-9925-03.01-1988 IEC-60723-4-1-1987 QC-250301-1987.pdf
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1、BRITISH STANDARD BS 9925-03.01: 1988 IEC 723-4-1: 1987 QC 250301: 1987 Specification for Harmonized system of quality assessment for electronic components Inductor and transformer cores for telecommunications Blank detail specification Magnetic oxide cores for transformers and chokes for power appli
2、cations Assessment level A Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-03.01:1988 BSI 02-2000 ISBN 0 580 34394 4 Amendments issued since publication Amd. No.DateComments Licensed Copy: London South
3、Bank University, London South Bank University, Fri Dec 08 02:06:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-03.01:1988 BSI 02-2000i Contents Page National forewordii 1Scope1 2Detail specification1 3Key to the arrangement of page 2 of the BDS1 3Marking3 4Ordering information3 5Related docum
4、ents3 6Additional information (not for inspection purposes)3 7Certified test records (CTRs)3 8Inspection requirements4 Table I Quality conformance test schedule4 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
5、BS 9925-03.01:1988 ii BSI 02-2000 National foreword This Part of this British Standard has been prepared under the direction of the Electronic Components Standards Committee. It is identical with IEC Publication 723-4-1 (QC 250301):1987 “Inductor and transformer cores for telecommunications”, Part 4
6、, “Blank detail specification: Magnetic oxide cores for transformers and chokes for power applications. Assessment level A”, published by the International Electrotechnical Commission (IEC). This standard is a harmonized specification within the IECQ system of quality assessment for electronic compo
7、nents, which is governed by its Basic Rules, Publication QC 001001 and its Rules of Procedure, Publication QC 001002. 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 certai
8、n conventions are not identical with those used in British Standards. Cross-references. The British Standard harmonized with IEC QC 001001 and QC 001002 is BS 9000 “General requirements for a system for electronic components of assessed quality”. A British Standard does not purport to include all th
9、e 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. International StandardCorresponding British Standard IEC 367-1:1982BS 5938 Cores for inductors
10、 and transformers for telecommunications Part 1:1984 Methods of measurement (Identical) IEC 410:1973BS 6001 Sampling procedures for inspection by attributes. Part 1:1972 Specification for sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection (Technically equivalenta) IEC
11、 424:1973BS 6786:1986 Guide to the specification of limits for physical imperfections of parts made from magnetic oxides (Identical) BS 9925 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications IEC 723-1:1982Part 0:1984 Generic spec
12、ification (Identical) IEC 723-4:1987Part 03.0:1988 Sectional specification: Magnetic oxide cores for transformers and chokes for power applications (Identical) a Although catalogued as a “related” standard, BS 6001-1 contains identical text to those parts of IEC 410 needed to implement this blank de
13、tail specification. It is therefore, for the purposes of this standard, regarded as technically equivalent. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6 and a back cover. This standard has been updated (see copyright date) and may have h
14、ad amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-03.01:1988 BSI 02-20001 1 Scope This specification li
15、sts the ratings, characteristics, inspection requirements and additional information for magnetic oxide cores for transformers and chokes for power applications at assessment level A, which are to be included as the minimum mandatory requirements in any detail specification derived from the correspo
16、nding sectional specification: IEC Publication 723-4, which should also be referred to for guidance on optional requirements. 2 Detail specification The blank detail specification (BDS) which follows, when completed in accordance with the rules given in IEC Publication 723-4 and Clause 3 of this spe
17、cification, will form the relevant detail specification. 3 Key to the arrangement of page 2 of the BDS The numbers between square brackets, on page 2, correspond to the following information which shall be inserted in the position indicated: 3.1 Identification of the specification 3.2 Identification
18、 of the core 1 name of the national standards organization under whose authority the detail specification is issued. 2 number of the IEC blank detail specification used. 3 number and issue status of the national generic specification. 4 national number of the detail specification, date of issue and
19、any other information required by the national system. 5 shape and size of the core, for example, core RM 8. 6 short description of the class or material grade. 7 outline drawing and dimensions, stating the dimensions in millimetres and indicating which are the primary dimensions (see IEC Publicatio
20、n 723-4, note to Sub-clause 3.4.1). When the dimensions are in accordance with those published in an IEC standard, this shall be stated. 8 application or group of applications and indication of the quality assessment level. 9 reference data giving information on the most important properties of the
21、core, which allow comparison between the various core types intended for the same or for similar applications. These include, but are not limited to: effective parameters (see IEC Publication 723-1, Clause 5); operating conditions (see IEC Publication 723-4, Sub-clause 5.3.1); storage conditions (se
22、e IEC Publication 723-4, Sub-clause 5.3.2). Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9925-03.01:1988 2 BSI 02-2000 1Page 1 of2 IEC 723-4-1-XXX 3 Core of assessed quality in accordance with 4 5 6 Detai
23、l specification for Class: 7 Dimensions in millimetres IEC Reference:8 Application Transformers and chokes for power applications for professional and industrial use Assessment level A 9 1. Effective parameters:C1 = . mm1 C2 = . mm3 Ae = . mm2 Ie = . mm Ie = . mm3 9 2. Limiting conditions (not for i
24、nspection purposes) Operating conditions: 1) Maximum temperature Storage conditions: 2) Storage temperature range + . C . C to + . C See the relevant qualified products list for availability of cores made to this detail specification. Licensed Copy: London South Bank University, London South Bank Un
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