BS 5164-1975 Specification for indirect-acting electrical indicating and recording instruments and their accessories《间接作用的电指示和记录仪表及其附件规范》.pdf
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1、BRITISH STANDARD BS 5164:1975 Specification for Indirect-acting electrical indicating and recording instruments and their accessories UDC 621.317.7.087.6BS5164:1975 This British Standard having beenapproved by the Electrical Industry Standards Committee, was published under the authorityof the Execu
2、tive Boardon 28 February 1975 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference ELE/13 Draft for comment 69/27008 ISBN 0 580 08269 5 Co-operating organizations The Electrical Industry Standards Committee under whose supervision this British Standard wa
3、s prepared consists of representatives from the following Government departments and scientific and industrial organizations: The Government department and scientific and industrial organizations marked with an asterisk in the above list, together with the following, were directly represented on the
4、 committee entrusted with the preparation of this British Standard: Associated Offices Technical Committee Department of the Environment Association of Consulting Engineers* Department of Trade and Industry* Association of Manufacturers of Domestic Electric Cable Makers Confederation Electrical Appl
5、iances Electrical Contractors Association Association of Mining Electrical and Electrical Contractors Association of Scotland Mechanical Engineers Electrical Research Association Association of Supervisory and Executive Electricity Supply industry in England and Engineers* Wales* British Electrical
6、and Allied Manufacturers Electronic Engineering Association Association Engineering Equipment Users Association* British Electrotechnical Approvals Board for Institution of Electrical Engineers* Household Equipment Institution of Electrical and Electronics British Non-Ferrous Metals Federation Techn
7、ician Engineers British Radio Equipment Manufacturers Lighting Industry Federation Limited Association Ministry of Defence* British Railways Board National Inspection Council for Electrical British Steel Corporation Installation Contracting Crown Agents for Oversea Governments and Oil Companies Mate
8、rials Association Administrations Post Office* Department of Employment (HM Factory South of Scotland Electricity Board Inspectorate) British Industrial Measuring and Control Scientific Instrument Manufacturers Apparatus Manufacturers Association Association National Physical Laboratory (Department
9、of Department of Trade and Industry (British Trade and Industry) Calibration Service) Electrical Power Engineers Association Amendments issued since publication Amd. No. Date of issue CommentsBS5164:1975 BSI 12-1999 i Contents Page Co-operating organizations Inside front cover Foreword ii 1 Scope 1
10、2 Definitions 1 3 Classification 10 4 Permissible intrinsic errors and reference conditions for instruments related to the measured quantity 10 5 Permissible intrinsic errors and reference conditions related to time-keeping 12 6 Permissible intrinsic errors and reference conditions for accessories 1
11、3 7 Permissible limits of variations 13 8 Permissible limits of variations for accessories 17 9 Electrical and mechanical requirements of instruments and accessories 18 10 Constructional requirements for instruments and accessories 21 11 Markings and symbols for instruments and accessories 21 12 Cat
12、egories of test 24 Appendix A Concepts 30 Figure 1 Common mode test circuits 17 Figure 2 Effective range 8 A to 50 A 30 Figure 3 Effective range 80 V to 110 V 30 Figure 4 Effect of temperature 31 Figure 5 Effect of temperature 32 Figure 6 Effect of frequency 32 Table 1 Limits of intrinsic error of i
13、nstruments related to the measured quantity expressed as a percentage of the fiducial value 10 Table 2 Preconditioning of instruments 11 Table 3 Reference conditions for the influence quantities related to the measured quantity 11 Table 4 Additional reference conditions related to the measured quant
14、ity for recording instruments 12 Table 5 Limits of intrinsic error related to time-keeping expressed as a percentage of the true elapsed time 12 Table 6 Reference conditions for the influence quantities related to time-keeping 12 Table 7 Limits of intrinsic error of an accessory expressed as a perce
15、ntage of the fiducial value 13 Table 8 Normal values of the limits of the nominal range of use and allowable variation expressed as a percentage of the measuring class index 14 Table 9 Variation due to mounting on a ferromagnetic panel 15 Table 10 Normal values of the limits of the nominal range of
16、use related to time-keeping 17 Table 11 Value of test voltage 20 Table 12 Examples of marking related to the reference conditions and nominal ranges of use for instruments and accessories 25 Table 13 Symbols for marking instruments and accessories 25 Table 14 Examples of limits of effective range an
17、d fiducial values 30 Publications referred to Inside back coverBS5164:1975 ii BSI 12-1999 Foreword This British Standard has been prepared under the authority of the Electrical Industry Standards Committee. It deals with electrical instruments in which the indicating or recording device is driven by
18、 a motor or other device controlled electromechanically or electronically by the measured quantity, in contradistinction to direct-acting instruments in which the indicating or marking device is mechanically connected to and actuated by the moving element. It is the first British Standard dealing wi
19、th indirect-acting electrical instruments to be published, and is based, wherever possible, on IEC Publication 484 “Indirect acting measuring instruments”, in the preparation of which the UK has fully participated. While the international recommendation covers instruments of both the electrical bala
20、nce and mechanical balance types, the British Standard has been restricted to the former, because the small interest in the mechanical balance type in the UK does not justify the complication of incorporating it satisfactorily. In accordance with international practice, the concept of accuracy class
21、 has been used throughout this British Standard. The performance of instruments is characterized by a number, termed the class index, which designates the upper limit of instrument error, expressed in per cent when the instrument is used under reference conditions. Instruments of the direct-acting t
22、ype are dealt with in BS89 “Direct-acting electrical indicating instruments”, Part1: “Single purpose direct acting electrical indicating instruments and their accessories” and BS90 “Direct-acting electrical recording instruments and their accessories”. A British Standard does not purport to include
23、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. Summary of pages This document comprises a front cover, an inside front cover, pages i a
24、nd ii, pages1 to 34, 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.BS5164:1975 BSI 12-1999 1 1 Scope 1.1 This British Standard specifies requ
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