BS QC 410400-1992 Harmonized system of quality assessment for electronic components - Potentiometers for use in electronic equipment - Sectional specification for rotary precision .pdf
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1、BRITISH STANDARD BS QC 410400: 1992 IEC393-3: 1992 Harmonized system of quality assessment for electronic components Potentiometers for use in electronic equipment Sectional specification for rotary precision potentiometersBSQC410400:1992 This British Standard, having been prepared under the directi
2、onof the Electronic Components Standards PolicyCommittee, was publishedunder the authorityofthe Standards Boardand comes into effect on 15 July 1992 BSI09-1999 The following BSI references relate to the work on this standard: Committee reference ECL/4 Draft announced in BSI News April 1992 ISBN 0 58
3、0 21000 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Components Standards Policy Committee (ECL/-) to Technical Committee ECL/4, upon which the following bodies were represented: EEA (the Association of the Electronics, T
4、elecommunications and Business Equipment Industries) Electronic Components Industry Federation Ministry of Defence National Supervising Inspectorate The following bodies were also represented in the drafting of the standard, through subcommittees and panels: BEAMA Ltd. ERA Technology Ltd. Amendments
5、 issued since publication Amd. No. Date CommentsBSQC410400:1992 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Section 1. General 1 General 1 1.1 Scope 1 1.2 Object 1 1.3 Related documents 1 1.4 Information to be given in a detail specification 1 1.5 Marki
6、ng 3 Section 2. Preferred ratings, characteristics and test severities 2 Preferred ratings, characteristics and test severities 4 2.1 Preferred characteristics 4 2.2 Preferred values of ratings 6 2.3 Preferred test severities 8 Section 3. Quality assessment procedures 3 Quality assessment procedures
7、 9 3.1 Structurally similar components 9 3.2 Qualification approval 9 3.3 Quality conformance inspection 22 3.4 Delayed delivery 22 3.5 Apparatus for measuring mechanical accuracy 23 Table I 5 Table II 6 Table III Test schedule for Qualification approval 10 Table IVA 23 Table IVB 23 List of referenc
8、es Inside back coverBSQC410400:1992 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards Policy Committee. It is identical with IEC393-3:1992 (QC410400) Potentiometers for use in electronic equipment Part3: Sectional spec
9、ification: Rotary precision potentiometers, published by the International Electrotechnical Commission (IEC) and is a harmonized specification within the IECQ system of quality assessment for electronic components. The standard is to be used in conjunction with BS QC410000:1990 Harmonized system of
10、quality assessment for electronic components: potentiometers for use in electronic equipment. The Technical Committee has reviewed the provisions of IEC410 and QC001001 to which reference is made in the text and has decided that they are acceptable for use in conjunction with this standard. The Brit
11、ish Standard which implements the IECQ Rules of Procedure is BS9000General requirements for a system for electronic components of assessedquality Part3:1991 Specification for the national implementation oftheIECQsystem. A British Standard does not purport to include all the necessary provisions of a
12、 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. Cross-references International Standard Corresponding British Standard IEC63:1963 BS2488:1966 Schedule of preferred numbe
13、rs for the resistance of resistors and the capacitance of capacitors for telecommunication equipment (Technically equivalent) IEC68 BS2011 Environmental testing (All Parts identical or technically equivalent) IEC393-1:1988 BS QC410000:1990 Harmonized system of quality assessment for electronic compo
14、nents: potentiometers for use in electronic equipment (Identical) QC001002:1986 BS QC001002:1991 Rules of Procedure of the IEC Quality Assessment System for Electronic Components (IECQ) (Identical) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to
15、24, 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.BSQC410400:1992 BSI 09-1999 1 Section 1. General 1 General 1.1 Scope This standard is appli
16、cable to rotary precision potentiometers. These potentiometers are primarily intended for use in electronic equipment. 1.2 Object The object of this standard is to prescribe preferred ratings and characteristics and to select from IEC Publication393-1, appropriate Quality Assessment procedures, test
17、s and measuring methods and to give general performance requirements for this type of potentiometer. Test severities and requirements prescribed in detail specifications referring to this sectional specification shall be of equal or higher performance level, lower performance levels are not permitte
18、d. 1.3 Related documents IEC Publications: NOTEThe above references apply to the current editions except for IEC Publication68, for which the referenced edition in the applicable test clauses of the generic specification shall be used. 1.4 Information to be given in a detail specification Detail spe
19、cifications shall be derived from the relevant blank detail specification. Detail specifications shall not specify requirements inferior to those of the generic, sectional or blank detail specification. When more severe requirements are included, they shall be listed in Sub-clause1.9 of the detail s
20、pecification and indicated in the test-schedules, for example by an asterisk. NOTEThe information given in Sub-clauses1.4.1 and1.4.3 may, for convenience, be presented in tabular form. The following information shall be given in each detail specification and the values quoted shall preferably be sel
21、ected from those given in the appropriate clause of this sectional specification. Publication63:1963 Preferred Number Series for Resistors and Capacitors. Amendment No.1(1967) Amendment No.2(1977) Publication68 Basic Environmental Testing Procedures. Publication393-1:1988 Potentiometers for Use in E
22、lectronic Equipment. Part1: Generic Specification. Publication410:1973 Sampling Plans and Procedures for Inspection by Attributes. Publication QC001001:1986 Basic Rules of the IEC Quality Assessment System for Electronic Component (IECQ). Publication QC001002:1986 Rules of Procedure of the IEC Quali
23、ty Assessment System for Electronic Components (IECQ).BSQC410400:1992 2 BSI 09-1999 1.4.1 Outline drawing and dimensions The detail specification shall incorporate an illustration of the potentiometer being specified. Where space is insufficient to show the detail dimensions required for inspection
24、purposes, such dimensions shall appear on a drawing forming an appendix to the detail specification. The drawing shall give the following details: the dimensions of the spindle and bush. These may be given either on the outline drawing or by reference to IEC Publication915; any locating devices; the
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