1、BRITISH STANDARD BS EN 125200:1993 CECC 25200: 1977 Incorporating Amendment No. 1 Harmonized system of quality assessment for electronic components Sectional specification: Magnetic oxide cores for linear transformers The European Standard EN 125200:1991 has the status of a British StandardBSEN12520
2、0:1993 This British Standard, having been prepared under the directionof the Electronic Components Standards Committee, was published underthe authority of the Executive Board on 30 November1978 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference ECL/20
3、Draft for comment 76/27246 DC ISBN 0 580 10334 X Cooperating organizations The Electronic Components Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government department and scientific and industrial organizations: Britis
4、h Electrical and Allied Manufacturers Association (BEAMA) Electricity Supply Industry in England and Wales* Electronic Components Industry Federation* Electronic Engineering Association* Institution of Electronic and Radio Engineers Ministry of Defence* National Supervising Inspectorate* Post Office
5、* Society of British Aerospace Companies Limited Telecommunication Engineering and Manufacturing Association (TEMA) Trades Union Congress The organizations marked with an asterisk in the above list were directly represented on the committee entrusted with the preparation of this British Standard. Am
6、endments issued since publication Amd. No. Date of issue Comments 7578 February 1993 Indicated by a sideline in the marginBSEN125200:1993 BSI 08-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword iii Text of EN 125200 1BSEN125200:1993 ii BSI 08-1999 Natio
7、nal foreword This British Standard has been prepared under the direction of the Electronic Components Standards Committee. It is identical with CENELEC Electronic; Components Committee (CECC)25200 “Harmonized system of quality assessment for electronic components. Sectional specification: Magnetic o
8、xide cores for linear transformers”. In 1991 the CENELEC Electronic Components Committee (CECC) accepted CECC25200:1977 as European Standard EN125200:1991. As a consequence of implementing the European Standard this British Standard is renumbered as BSEN125200 and any reference to BSCECC25200 should
9、 be read as a reference to BSEN125200. This standard is a harmonized specification within the CECC system. Terminology and conventions. The text of the CECC specification has been accepted as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions
10、 are not identical with those used in British Standards; attention is especially drawn to the following: The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Cross references. The British Standard harmoniz
11、ed with CECC00100 is BSE9000 “General requirements for electronic components of assessed quality harmonized with the CECC system”. For each of the following references to International Standards given in the text, there is a corresponding BritishStandard; these are as listed below: A British Standar
12、d 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 British Standard does not of itself confer immunity from legal obligations. International Standard Corresponding British Standard IEC
13、68-1:1968 BS 2011 Basic environmental testing procedures Part 1.1:1977 General (Identical) IEC 133:1967 BS 4061:1966 Dimensions of pot cores made of ferromagnetic oxides for use in telecommunication and allied electronic equipment (Related) CECC 00007:1973 BS E9007:1975 Harmonized system of quality
14、assessment for electronic components: Basic specification: Sampling plans and procedures for inspection by attributes (Identical) CECC 25000:1976 BS CECC 25000:1977 Harmonized system of quality assessment for electronic components: Generic specification: Inductor and transformer cores for telecommun
15、ications (Identical) NOTEThere are as yet no equivalent British Standards for IEC205, IEC367-1, IEC424. The committee responsible for these standards have studied these and confirm that, for the purpose of this standard their technical requirements are acceptable. Summary of pages This document comp
16、rises a front cover, an inside front cover, pages i and ii, the EN title page, page 2, the CECC title page, pages ii to iv, pages 1 to 8 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 th
17、e inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 125200 December 1991 Descriptors: Quality, electronic components, cores English version Sectional Specification: Magnetic oxide cores for linear transformers Spcification Intermdiaire: Noyaux en oxyde magntique destins aux tra
18、nsformateurs linaires Rahmenspezifikation: Kerne aus magnetischen Oxiden fr lineare bertrager This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on20November1991. The text of this standard consists of the text of CECC25200 Issue11977 of the corresponding CECC S
19、pecification. CENELEC members are bound to comply with CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be
20、 obtained on application to the General Secretariat of the CECC or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and not
21、ified to the CECC General Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerl
22、and and United Kingdom. The membership of the CECC is identical, with the exception of the national electrotechnical committees of Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elekt
23、rotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1991 Copyright reserved to CENELEC members Ref. No. EN 125200:1991 E2 blankEN125200:1991 ii BSI 08-1999 Contents Page Foreword iii Section 1. Scope 1 Section 2. General 1 2.1 Related documents 1 2.2 Classification 1 Sectio
24、n 3. Quality assessment procedures 1 Section 4. Additional information 2 Section 5. Blank detail specification 2 5.1 Identification of the harmonized detail specification 2 5.2 Identification of the core 2 5.3 Limiting conditions 3 5.4 Marking of components and package 3 5.4.1 Component 3 5.4.2 Pack
25、age 3 5.5 Characteristics 3 5.5.1 Visual examination 3 5.5.2 Dimensions 3 5.5.3 Effective parameters 3 5.5.4 Electrical properties 3 5.5.5 Mechanical properties 4 5.6 Certified test records 4 5.7 Additional information 4 5.8 Ordering information 4 5.9 Format of the detail specification 4EN 125200:19
26、91 BSI 08-1999 iii Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. The object of the
27、System is to facilitate international trade by the harmonization of specifications and quality assessment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under the System are thereby accepted by all
28、member countries without further testing. This document has been formally approved by the CECC, and has been prepared for those member countries taking part in the System who wish to issue national harmonized specifications for MAGNETIC OXIDE CORES FOR LINEAR TRANSFORMERS. It should be read in conju
29、nction with document CECC00100: Basic Rules(1974). At the date of printing of this document, the member countries of the CECC are Belgium, Denmark, Germany, France, Ireland, Italy, the Netherlands, Norway, Sweden, Switzerland, the United Kingdom, and copies of it can be obtained from the National Co
30、mmittees of the CENELEC in these countries. Preface This sectional specification was prepared by CECC Working Group12: “Magnetic Components”. This is one of a series of sectional specifications, all relating to the generic specification printed as CECC25000. In accordance with the requirements of do
31、cument CECC00100, it is based, wherever possible, on the Recommendations of the International Electrotechnical Commission and in particular on IEC Publication367: Cores for inductors and transformers for telecommunications. The text of this sectional specification was circulated to the CECC in docum
32、ent CECC (Secretariat)527 in July1976, and was ratified by the CECC for printing as a CECC Specification. This document contains the front page and test schedules to be used in preparation of detail specifications. Each test schedule, referenced by a CECC number, when taken with the appropriate info
33、rmation in5 of this specification, forms a detail specification.iv blankEN125200:1991 BSI 08-1999 1 Section 1. Scope This sectional specification lists the characteristics, ratings and inspection requirements for magnetic cores of assessed quality for linear transformers intended for professional an
34、d industrial applications, excluding power, blocking and tuned transformers. It selects from the generic specification CECC25000 the appropriate methods of test to be used in detail specifications derived from this specification. Section 2. General 2.1 Related documents 2.2 Classification A core acc
35、ording to this specification is classified by: shape: for example E core, toroid, pot core, . . . size: for example 18 11, X 22, RM 6, . . . class (combined electromagnetic properties). Since no systematic classification of the electromagnetic properties is available in CECC, each detail specificati
36、on shall clearly define the class which it applies to. It may also state the appropriate class designation. Normally, a detail specification will cover cores of one shape, size and class. Section 3. Quality assessment procedures The tests given in the table on page2 are those that shall be included
37、in each detail specification for magnetic oxide linear transformer cores. These tests shall be carried out in accordance with the measuring methods presented in Sections2 to4 of CECC25000. Visual examination and measurement of dimensions may be carried out on half-cores prior to pairing or on a set,
38、 all other tests being carried out on a set. Temperature dependence of A L . The A Lvalues, within the specified temperature range, shall stay above the specified minimum. IEC 68 Basic environmental testing procedures (see CECC 00006) IEC 68-1 (1968) Part 1: General. IEC 133 (1967) Dimensions for po
39、t-cores made of ferromagnetic oxides and associated parts. IEC 205 (1966) Calculation of the effective parameters of magnetic piece parts. IEC 367-1 (1971) Part 1: Measuring methods. CECC 00 007 (1973) Basic specification: Sampling plans and procedures for inspection by attributes. IEC 424 (1973) Gu
40、ide to the specification of limits for physical imperfections of parts made from magnetic oxides.EN125200:1991 2 BSI 08-1999 Table for quality conformance inspection Section 4. Additional information Additional information, in the form of curves and graphs may be given by the manufacturers. This sho
41、uld not be used for inspection purposes, it is supplied for information only. Section 5. Blank detail specification The following information shall be prescribed in each detail specification together with the required values. The general data necessary to identify the harmonized detail specification
42、 and the component shall preferably be presented as shown in5.9. 5.1 Identification of the harmonized detail specification 5.2 Identification of the core Group TEST Inspection level AQL % A Visual examination Marking I 1,5 Dimensions Primary I 1 Secondary S3 4 Lot-by-lot Inductance factor A L S4 1 B
43、 Loss factor or S3 4 Parallel resistance coefficient R p /N 2 Lot-by-lot Hysteresis constant ) Bor tan h S3 4 C Superimposed direct current 15 sets 1 defective allowable every 12 months Temperature dependence of A L 15 sets 1 defective allowable every 6 months Periodic On one delivery batch Compress
44、ion load test 15 sets 1 defective allowable every 6 months NOTEHysteresis constant and superimposed direct current need only be included in the detail specification if prescribed. The name of the National Standards Organization under whose authority the detail specification is drafted 1 The CECC Sym
45、bol and the number allotted by the CECC General Secretariat to the completed detail specification 2 The number and issue number of the national generic specification 3 The national number of the detail specification, date of issue and any further information required by the national system 4 Magneti
46、c core intended for linear transformers class: 5 Typical construction (core shape and size) 6 Outline drawing and dimensions (cf.5.5.2) 7 Application or group of applications covered by the detail specification 8 $ rF + tan 4 e -EN125200:1991 BSI 08-1999 3 5.3 Limiting conditions (not for inspection
47、 purposes) 5.4 Marking of component and package 5.4.1 Component (minimum information) 1) Class or grade of material (may be in coded form) A Lvalue (where space permits; may be numerical value only, for example 100) Manufacturers ideogram or trade-mark and indication of the production or inspection
48、lot, for example, by the date of release (which may be in coded form) 5.4.2 Package (minimum information in the following sequence) Detail specification number Manufacturers component designation and name of manufacturer or ideogram Manufacturers batch identification code Quantity A Lvalue 5.5 Chara
49、cteristics 5.5.1 Visual examination The conditions, workmanship and finish shall be satisfactory as determined by visual examination. The permissibility of any physical imperfections shall be judged on the basis of IEC424. The permissible percentage of chipping shall be stated in the detail specification. The marking shall be clearly legible as determined by visual examination. 5.5.2 Dimensions Primary dimensions are the dimensions controlled by the gauge(s) defined in the appropriate IEC
