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1、BRITISH STANDARD BS CECC 31200:1981 Incorporating Amendment No. 1 Harmonized system of quality assessment for electronic components: Sectional specification: Fixed capacitors with metallized electrodes and polypropylene dielectric UDC 621.319.4 Licensed Copy: London South Bank University, London Sou
2、th Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 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 De
3、cember 1981 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference ECL/4 Draft for comment 79/24220 DC ISBN 0 580 12520 3 Cooperating organizations The Electronic Components Standards Committee, under whose direction this British Standard was prepared, cons
4、ists of representatives from the following: British 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 National Supervis
5、ing Inspectorate* Post Office* Society of British Aerospace Companies Limited* Telecommunication Engineering and Manufacturing Association (TEMA) The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted w
6、ith the preparation of this British Standard: British Broadcasting Corporation Electrical Research Association Amendments issued since publication Amd. No.Date of issueComments 7403February 1993Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank Unive
7、rsity, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 BSI 10-1999i Contents Page Cooperating organizationsInside front cover National forewordii Forewordiii Text of CECC 312001 Publications referred toInside back cover Licensed Copy: London South Bank University, L
8、ondon South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards Committee. It is identical with CENELEC Electronic Compon
9、ents Committee (CECC) 31200 “Harmonized system of quality assessment for electronic components: Sectional specification: Fixed capacitors with metallized electrodes and polypropylene dielectric including Amendments 1 (1988), 2 (1989) and 3 (1989)”. This standard is a harmonized specification within
10、the CECC system. Terminology and conventions. The text of the CECC specification has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to th
11、e following. The comma has been used throughout 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 harmonized with CECC 00100 is BS E9000 “Specification for general requirements for electr
12、onic components of assessed quality harmonized with the CENELEC Electronic Components Committee System” Part 1 “Basic rules”. 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. Complianc
13、e with a British Standard does not of itself confer immunity from legal obligations. International StandardCorresponding British Standard CECC 30000:1975BS E9070:1975 Harmonized system of quality assessment for electronic components. Generic specification for fixed capacitors (Identical) CECC 00007:
14、1973BS E9007:1975 Harmonized system of quality assessment for electronic components: Basic specification: Sampling plans and procedures for inspection by attributes (Identical) ISO 3:1973BS 2045:1965 Preferred numbers (Technically equivalent) IEC 62:1974BS 1852:1975 Marking codes for resistors and c
15、apacitors (Identical) IEC 68-2-30:1980BS 2011 Basic environmental testing procedures Part 2.1 Db:1981 Test Db. Damp heat, cyclic (12 + 12 hour cycle) (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the CECC title page, pages ii to iv, pages
16、1 to 14, 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, London South Bank University, Fri Dec 08
17、 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 ii BSI 10-1999 Contents Page Forewordiii Section 1. General1 1.1Scope1 1.2Related document
18、s1 1.3Information to be given in a detail specification1 1.4Terminology1 1.5Marking2 Section 2. Preferred ratings and characteristics2 2.1Preferred climatic categories2 2.2Preferred values of ratings2 Section 3. Quality assessment procedure3 3.1Primary stage of manufacture3 3.2Certified test records
19、3 3.3Qualification approval3 3.4Quality conformance inspection4 3.5Delayed delivery4 Section 4. Test and measurement procedures6 4.1Standard conditions of testing6 4.2Visual inspection and check of dimensions6 4.3Voltage proof7 4.4Capacitance7 4.5Tangent of loss angle7 4.6Insulation resistance8 4.7I
20、nductance8 4.8Characteristics depending on temperature8 4.9Tests of Groups 1a and C1a9 4.10Tests of Groups 1b and C1b10 4.11Climatic sequence11 4.12Test Ca : Damp heat, steady state12 4.13Endurance13 4.14Charge and discharge13 Table 1 Test schedule for qualification approval5 Table 2 Lot-by-lot test
21、s6 Table 3 Periodic tests6 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 BSI 10-1999iii Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of
22、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 System is to facilitate international trade by the harmonization of the specifications and quality assessment procedures
23、 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 member countries without further testing. This specification has been formally approved by the CECC, and has been pr
24、epared for those countries taking part in the System who wish to issue national harmonized specifications for FIXED CAPACITORS WITH METALLIZED ELECTRODES AND POLYPROPYLENE DIELECTRIC. It should be read in conjunction with document CECC 00100: Basic Rules (1974). At the date of printing of this docum
25、ent the member countries of the CECC are Belgium, Denmark, France, Germany, Ireland, Italy, the Netherlands, Norway, Sweden, Switzerland and the United Kingdom, and copies of it can be obtained from the addressees shown on the inside cover. Preface This sectional specification was prepared by CECC W
26、orking Group 3: Capacitors. It is one of a series of sectional specifications all relating to the generic specification CECC 30000. In accordance with the requirements of document CECC 00100 it is based, wherever possible, on the Recommendations of the International Electrotechnical Commission. As t
27、here are more than nine sectional specifications related to CECC 30000: generic specification, Fixed Capacitors, the CECC Management Committee decided that these extra specifications should be numbered in the series 31100, 31200, 31300 etc. There is no generic specification numbered 31000. This spec
28、ification is an example of this extended numbering series. It is based on CECC 30000 and all clause etc, cross references are based on this generic specification. The text of this specification was circulated to the CECC for voting in the documents listed below and was ratified by the CECC Managemen
29、t Committee for printing as a CECC Specification: DocumentVoting DateReport on the Voting CECC(Secretariat)806January 1979CECC(Secretariat)894 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed C
30、opy: London South Bank University, London South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 BSI 10-19991 Section 1. General 1.1 Scope This specification relates to fixed capacitors with metallized electrodes and polypropylene dielectric. It pres
31、cribes preferred ratings and characteristics and selects from CECC 30000 the appropriate quality assessment procedure, tests and measuring methods, and gives general performance requirements for this sub-family of capacitors. These capacitors may have “self-healing properties” depending on condition
32、s of use. They are mainly intended for use with direct voltage. Capacitors for alternating voltage and pulse applications will be covered by supplements to this document or a separate document. The maximum power to be applied is 500 VAR at 50 Hz and the maximum peak voltage is 2 500 V. Two performan
33、ce grades of capacitors are covered by this specification, Grade 1 for long-life application and Grade 2 for normal application. Capacitors for direct connection to the supply mains to provide radio interference suppression are not included. 1.2 Related documents 1.3 Information to be given in a det
34、ail specification Detail specifications shall be derived from the relevant blank detail specification. Detail specifications shall not specify requirements inferior to those of the generic or sectional specification. When more severe requirements are included, they shall be listed in the detail spec
35、ification and indicated in the test schedules, for example by an asterisk. 1.4 Terminology See 2.2 of CECC 30000 with the following additional definitions: 1.4.1 performance grade 1 capacitors capacitors intended for long-life applications with stringent requirements for the electrical parameters 1.
36、4.2 performance grade 2 capacitors capacitors for general application where the stringent requirements of performance grade 1 are note necessary 1.4.3 stability grade a grade which is defined by the capacitance drift after climatic and mechanical tests and after endurance tests NOTEThe performance g
37、rade and the stability grade shall be given in the detail specification. 1.4.4 performance grade and stability grade combinations the table below shows the combinations of the performance grade and the stability grade The 3 combinations of performance grades and stability grades concern capacitance
38、stability and Tan values. Distinction in performance of the 3 combinations are shown in final requirements after tests. CECC 30000 Issue 3 (1983)Generic specification: Fixed capacitors Performance gradesStability gradesCombination Designations 1 11.1 21.2 22 Licensed Copy: London South Bank Universi
39、ty, London South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 2 BSI 10-1999 1.4.5 rated voltage the rated voltage is the maximum d.c. voltage which may be applied continuously to a capacitor at rated temperature NOTEThe sum of the d.c. voltage, p
40、eak a.c. voltage and peak pulse voltage applied to the capacitors shall not exceed the d.c. rated voltage. The value of the peak a.c. voltage allowed at different frequencies is under consideration. 1.5 Marking 1.5.1 The information given in the marking is normally selected from the following list;
41、the relative importance of each item is indicated by its position in the list: 1) Rated capacitance. (May be indicated by the code given in IEC 62). 2) Rated voltage: (d.c. voltage may be indicated by the symbol or). 3) Tolerance on rated capacitance. (May be indicated by the code given i IEC 62). 4
42、) Year and month (or week) of manufacture. (May be indicated by one of the codes given in IEC 62). 5) Manufacturers name or trade mark. 6) Climatic category. 7) Manufacturers type designation. 8) National number of the DS, date of issue and any further information required by the national system, to
43、gether with any amendment numbers, if issued. 1.5.2 The capacitor shall be clearly marked with 1), 2) and 3) above and with as many as possible of the remaining items as is considered necessary. Any duplication of information in the marking on the capacitor should be avoided. 1.5.3 The package conta
44、ining the capacitor(s) shall be clearly marked with all the information listed in 1.5.1. 1.5.4 Any additional marking shall be so applied that no confusion can arise. Section 2. Preferred ratings and characteristics 2.1 Preferred climatic categories The capacitors covered by this specification are c
45、lassified into climatic categories according to the general rules given in IEC 68-1. The lower and upper category temperature and the duration of the damp heat steady state test shall be within the following ranges: Duration of the damp heat, steady state test: 04 to 56 days. Values selected within
46、these ranges shall be chosen from those listed in IEC 68-2. The severities for the cold and dry heat tests are the lower and upper category temperatures respectively. 2.2 Preferred values of ratings 2.2.1 Rated capacitance (CR) Preferred values of rated capacitance are values chosen from the E serie
47、s of preferred values given in IEC 63: Preferred number series for resisters and capacitors. 2.2.2 Tolerance on rated capacitance The preferred tolerances on the rated capacitance are: 20 %; 10 %; 5 %; 2 %; 1 %. Lower category temperature: 55 Cto 10 C Upper category temperature:+ 70 Cto + 100 C Lice
48、nsed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31200:1981 BSI 10-19993 2.2.3 Rated capacitance with associated tolerances values 2.2.4 D.C Rated voltage (UR) The preferred values of d.c. rated voltage are:
49、 40631001602504006301 0001 6002 500 V. These values conform to the basic series of preferred values R5 given in ISO 3. 2.2.5 Category voltage (UC) The category voltage is UR for upper category temperatures up to 85 C, 0,7 UR for upper category temperature of 100 C. 2.2.6 Rated temperature For upper category temperatures 85 C the rated temperature is 85 C and for an upper category temperature 1 4F, values of tan should be specified in the detail specification. Frequency:10 kHz Voltage:1 V r.m.s. maximum Measurement error:k 5