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1、BRITISH STANDARD BS CECC 96400:1988 (Including CECC Erratum) Harmonized system of quality assessment for electronic components Sectional specification including blank detail specification: Push-button switches UDC 621.316.54:.001.4 Licensed Copy: London South Bank University, London South Bank Unive
2、rsity, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 This British Standard, having been prepared under the direction of the Electronics Components Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 January 1989 B
3、SI 01-2000 The following BSI references relate to the work on this standard: Committee reference ECL/21 Draft for comment 84/20842 DC ISBN 0 580 16879 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Components Standards Comm
4、ittee (ECL/-) to Technical Committee ECL/21, upon which the following bodies were represented: British Telecommunications plc Electronic Components Industry Federation Electronic Engineering Association Ministry of Defence National Supervising Inspectorate Society of British Aerospace Companies Ltd.
5、 Telecommunication Engineering and Manufacturing Association The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association of Control Manufacturers TACMA (BEAMA Ltd.) BEAMA Ltd. Amendments issued since publication Amd. No.Date of issueComme
6、nts Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 BSI 01-2000i Contents Page Committees responsibleInside front cover National forewordii Forewordiii Text of CECC 964001 Publications referr
7、ed toInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Electronic Component
8、s Standards Committee. It is identical with CENELEC Electronic Components Committee (CECC) 96004:1986 “Harmonized system of quality assessment for electronic components: Blank detail specification: Push-button switches”, which is renumbered and retitled by an Erratum as follows: CECC 96400 “Harmoniz
9、ed system of quality assessment for electronic components: Sectional specification including blank detail specification: Push-button switches”. This standard is being published after ratification but before the Erratum is issued and the necessary changes have been incorporated. This standard is a ha
10、rmonized specification within 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; atten
11、tion is drawn especially to the 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. The Technical Committee has reviewed the provisions of CECC 00200 and CECC 00300, to which referen
12、ce is made in the text, 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 British S
13、tandard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard CECC 96000:1985BS CECC 96000:1987 Harmonized system of quality assessment for electronic components: Generic specification: Electromechanical switches (Identical)
14、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 1 to 40, 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 indicat
15、ed in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006
16、, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 ii BSI 01-2000 Contents Page Forewordiii 1Basic information3 2Ratings and characteristics3 3Marking information5 4Ordering information5 5Related documents5 6Certified test records5 7Structural similarity5 8Delayed delivery5 9Additional information5 Tab
17、le 1 Test schedule for quality conformance inspection, assessment level D6 Table 2 Test schedule for quality conformance inspection, assessment level R19 Table 3 Inspection requirements for fixed sample size qualification approval for assessment level D23 Table 4 Inspection requirements for fixed sa
18、mple size qualification approval for assessment level R36 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 BSI 01-2000iii Foreword The CENELEC Electronic Components Committee (CECC) is compose
19、d 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 System is to facilitate international trade by the harmonization of the specifications an
20、d 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 member countries without further testing. This specification has been formally approv
21、ed by the CECC, and has been prepared for those countries taking part in the System who wish to issue national harmonized specifications for push-button switches. It should be read in conjunction with the current regulations for the CECC System. At the date of printing of this specification the memb
22、er countries of the CECC are Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Preface This blank detail specification was prepared by CECC Working Group 24: Switches. It is based, wherever possi
23、ble, on the publications of the International Electrotechnical Commission. The text of this specification was circulated to the CECC for voting in the document listed below and was ratified by the President of the CECC for printing as a CECC Specification. This specification is published in English
24、and French only. Scope This publication shall act as a sectional specification CECC 96000 and in addition provides a blank detail specification. DocumentVoting dateReport on the voting CECC(Secretariat)1485May 1984CECC(Secretariat)1647 Licensed Copy: London South Bank University, London South Bank U
25、niversity, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 BSI 01-20001 The preparation of detail specifications Genera
26、l instructions Detail specifications for push-button switches shall be prepared by completing the following pro-forma as indicated by the guidelines given below and in accordance with CECC 96000. The layout given shall be adhered to as closely as is practicable. Each detail specification shall relat
27、e to only one type of push-button switch as defined in 2.2.3 a) of CECC 96000, and to one assessment level, but may if found convenient, cover more than one style of that type and/or number of variants within each style. For push-button switches, “style” and “variant” have meanings as defined below.
28、 The style of a push-button switch of a given type is determined by the following parameters: current and voltage ratings climatic category Switches for which it is wished to claim structural similarity shall be of the same type and style, in accordance with 3.2 of CECC 96000. The variants within a
29、style of push-button switch are determined, for example, by the following parameters: method of mounting form of actuator contact arrangement mechanical system sealing operating force terminations illumination number of cells and their interlocking arrangements The detail specification shall contain
30、 all the necessary information to identify the particular type, style(s) and variant(s) of push-button switch which it covers. This information shall include at least the following: a) Ratings and characteristics 1) Ratings and characteristics shall be taken from the preferred list given in 2.3 of C
31、ECC 96000 unless more severe values are to be prescribed. 2) Proof voltage shall be determined as stated in 4.3.4(4-1) of CECC 96000. b) Detailed dimensions including mounting. c) Actuator details. d) Contact arrangements. e) Locking and interlocking arrangements. f) Mechanical operating characteris
32、tics. g) Terminations. h) Sealed or non-sealed. i) Indication and/or illumination. j) Assessment level. Terminology The terminology used shall be in accordance with 2.2 of CECC 96000. Any further special terms which are found necessary shall be defined in the detail specification. Detailed instructi
33、ons for completion of a detail specification A completed detail specification shall be prepared in accordance with the following instructions. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988
34、2 BSI 01-2000 1 Front page The front page is intended to formally identify the specification and to provide sufficient technical information for the user to identify the general features of the switch and its principal characteristics. Its layout shall be as shown on page 3. The numbers between squa
35、re brackets on page 3 refer to details which shall be inserted in accordance with items 1 to 9 below: 1 The name of the National Standards Organization under whose authority the detail specification is published, followed by the manufacturers name and address if appropriate. 2 The CECC symbol and th
36、e number allocated by the CECC General Secretariat. 3 The number and issue number of the CECC generic specification; also national reference if different. 4 If different from the CECC number, the national number, date of issue and any further information required by the national system, together wit
37、h any amendment numbers. 5 A statement of the class and sub-class (where applicable) of switch, as listed in 1.2 of CECC 96000. 6 Information on principal features of construction, such as provision of illumination, sealing, special mounting or termination facilities. It shall be stated if the switc
38、h is suitable for printed wiring applications. For 5 and 6 the text shall be suitable for an entry in CECC 00200 (QPI) and CECC 00300 (Library list). 7 An outline drawing with main dimensions which are of importance for interchangeability, and/or reference to the appropriate national or internationa
39、l document for outlines. Alternatively, this drawing may be given in an appendix. Dimensions shall be given in millimetres. 8 Level of quality assessment, in accordance with 3.1 below and with 3.4 of CECC 96000. 2 Technical information This section shall provide full technical details and performanc
40、e characteristics of the switch, together with any other information required by the user. It shall be prepared by completing pages 3, 4 and 5 in accordance with the instructions on those pages within square brackets. 3 Test schedule 3.1 This section shall fully identify the schedule of tests to whi
41、ch the component is subjected for quality conformance inspection and for qualification approval. Two alternative levels, Level D, Level R, are provided for switches and are detailed in Table 1 and Table 2 respectively; one of these levels shall be selected, depending upon the nature of the switch an
42、d its intended application. It is not permitted to delete inspection and test requirements from those laid down by the relevant table unless these are indicated as “if applicable”, but assessment levels intermediate between Levels R and D, or more severe than Level D, may be created by the introduct
43、ion of additional tests and/or by tightened inspection levels. When such enhanced assessment levels are created, this shall be indicated in box 8 of page 3 by inserting “D+” or “R+” as appropriate. 3.2 The pro-forma test schedules for quality conformance inspection are given in Table 1 and Table 2 f
44、or Levels D and R respectively. The appropriate table shall be completed with conditions of test and performance requirements as specified in 4.3 of CECC 96000 for each test and in accordance with the instructions given in the table in the square brackets. 3.3 When the fixed sample size procedure is
45、 adopted for obtaining qualification approval in accordance with 3.3.3 of CECC 96000, Table 3 (Level D) or Table 4 (Level R) shall be completed and used as appropriate. The conditions of test and the performance requirements shall be identical to those prescribed for quality conformance inspection i
46、n the completed Table 1 or Table 2. Table 3 and Table 4 are not required to be published as part of the detail specification. 3.4 When it is intended to reduce the number of contact sets tested, as permitted by 4.2 of CECC 96000, the following shall be stated in the test schedules for each relevant
47、sub-group: number of samples to have all their contact sets tested (minimum permitted = 25 % of the samples in each sub-group). total number of contact sets to be tested (minimum permitted = 1 set per switch on the rest of the samples). Licensed Copy: London South Bank University, London South Bank
48、University, Sat Dec 09 01:27:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 96400:1988 BSI 01-20003 3.5 When it is intended to apply tests additional to those specified by the following tables, the test methods shall be clearly detailed, either by reference to the relevant test number in 4.3
49、of CECC 96000 or, where the test is not defined by CECC 96000, by stating in full the test method to be applied. 1 Basic information 1.1 General A statement of the principal usage features of the device; for example “Quick-connect terminals, medium current, extended life”. 1.2 Range and variants available To include such details as contact arrangement, actuating force and terminations; for example “Single pole, seabed, with solder terminations”. 2 Ratings and characteristics Additional parameters may be state
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