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1、BRITISH STANDARD BS 9150:1983 Incorporating Amendment No. 1 Specification for Electrical relays of assessed quality: Generic data and methods of test UDC 621.318.5:681.584.7 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Co
2、py, (c) BSI BS 9150:1983 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 30 September 1983 BSI 12-1999 The following BSI references relate to the work on t
3、his standard: Committee reference ECL/1 Draft for comment 81/25027 DC ISBN 0 580 13346 X Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Components Standards Committee (ECL/-) to Technical Committee ECL/1 upon which the follow
4、ing bodies were represented: Association of Control Manufacturers (Tacma) (BEAMA) British Telecom Electronic Components Industry Federation Electronic Engineering Association Ministry of Defence National Supervising Inspectorate Telecommunication Engineering and Manufacturing Association (TEMA) Amen
5、dments issued since publication Amd. No.Date of issueComments 4688December 1984 Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9150:1983 BSI 12-1999i Contents Page Comm
6、ittees responsibleInside front cover Forewordiii Section 1. Principles and mandatory procedures 1.1General matters1 1.1.1Scope1 1.1.2Related documents1 1.1.3Terminology1 1.1.4Letters, symbols, signs and abbreviations4 1.1.5Graphical symbols4 1.1.6Marking of the component and package4 1.1.7Eligibilit
7、y for qualification approval4 1.1.8Structurally similar components4 1.1.9Delayed delivery5 1.1.10Supplementary procedure for qualification approval5 1.1.11Certified test records (CTRs)5 1.1.12Preferred ratings and characteristics5 1.1.13Unchecked parameters6 1.1.14Procedure to be followed in the eve
8、nt of failures at Group C or Group D inspection6 1.1.15Instructions for ordering relays6 1.1.16Release prior to completion of Group B tests6 1.2Test procedures6 1.2.1Test and measurement conditions6 1.2.2Visual inspection6 1.2.3Dimensioning and gauging procedures7 1.2.4Electrical test procedures7 1.
9、2.5Mechanical test procedures21 1.2.6Environmental test procedures22 1.2.7Endurance test procedures31 1.2.8Thermal test procedures35 Section 2. General rules for the preparation of detail specifications 2.1General35 2.2Basic information35 2.2.1Originator of the specification36 2.2.2Specification num
10、ber36 2.2.3Description of the component and intended application36 2.2.4Outline drawing36 2.2.5Ratings (including limiting conditions of use)36 2.2.6Characteristics37 2.2.7Related documents37 2.2.8Additional information (not for inspection purposes)37 2.2.9Instructions for ordering components37 2.3I
11、nspection requirements37 2.4Certified test records38 Appendix A List of rules documents40 Appendix B Principles to be observed in the preparation of detail specifications when calling up related specifications40 Appendix C Example of a certified test record40 Licensed Copy: London South Bank Univers
12、ity, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9150:1983 ii BSI 12-1999 Page Figure 1006/1 Typical circuit for the measurement of operate time and release time with typical voltage waveforms12 Figure 1007/1 Test circuit for the measurement of con
13、tact bounce13 Figure 1007/2 Typical recording of contact bounce14 Figure 1010 Mounting array for adjacent similar relays15 Figure 1013 Coil transient suppression test circuit17 Figure 1014/1 Typical voltage spike test arrangement18 Figure 1014/2 Unloaded spike generator waveform19 Table 1 Standard a
14、gents for fluid contamination tests31 Table 2 Major contaminant fluid groups and test temperatures31 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9150:1983 BSI 12-1999iii Foreword This British Standard ha
15、s been prepared under the direction of the Electronic Components Standards Committee. It supersedes BS 9150:1971, which is withdrawn. This revision incorporates technical changes to the previous text as well as new material, including new tests, in order to accommodate detail specifications covering
16、 a wider range of components. This standard calls for the use of substances and/or test procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and in no way absolves anyone responsible for testing from statutory obligations relating
17、to health or safety at any stage of manufacture or use. 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 Standard does not of itself confer immunity from lega
18、l obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 43 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
19、 cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9150
20、:1983 BSI 12-19991 Section 1. Principles and mandatory procedures 1.1 General matters 1.1.1 Scope This British Standard specifies the quality conformance and test procedures for electromechanical relays for control and switching circuits whose rated coil voltages do not exceed 500 V a.c. or 440 V d.
21、c., and whose contact ratings do not exceed 20 A a.c. or d.c., 500 V a.c. or 440 V d.c. It is a generic specification in accordance with BS 9000 in conjunction with which it should be read. It also contains the general rules for the preparation of detail specifications, other requirements such as fo
22、r marking, and lists relevant terminology. NOTEMore specific rules for the preparation of detail specifications are given in BS 9151, BS 9152 and BS 9153. (See Appendix A.) 1.1.2 Related documents BS 308, Engineering drawing practice. BS 2011, Basic environmental testing procedures. BS 2045, Preferr
23、ed numbers. BS 3763, The International System of units (SI). BS 3939, Graphical symbols for electrical power, telecommunications and electronics diagrams. BS 4000, Sizes of papers and boards. BS 4727, Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. BS
24、5775, Specification for quantities, units and symbols. BS 6001, Sampling procedures and tables for inspection by attributes. BS 9000, General requirements for electronic components of assessed quality1). BS 2G 100, General requirements for electrical equipment and indicating instruments for aircraft
25、. BS 3G 100, General requirements for equipment in aircraft. BS CECC 16000:1980, Generic specification: Electromechanical all-or-nothing relays. 1.1.3 Terminology For the purposes of this standard, the following terms and definitions apply in addition to the terms in BS 4727. Terms which are similar
26、 to terms contained in BS 4727-1:Group 03: Relay terminology are indicated by the corresponding term number. 1.1.3.1 type relays having one of the following constructions a) unenclosed b) enclosed or dust protected c) hermetically sealed 1.1.3.2 pattern relays of one type having one of the following
27、 contact duty categories: a) low-level duty: suitable for use in a low-level circuit; b) light duty: from a declared minimum up to and including 3 A; c) medium duty: above 3 A up to and including 10 A; d) heavy duty: above 10 A. 1) References to Part 1 of BS 9000 are to the 1981 edition. Licensed Co
28、py: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9150:1983 2 BSI 12-1999 1.1.3.3 style relays of one type and one pattern having one of the following terminations a) solderable b) wrapped c) plug-in d) screw e) crimped
29、f) push-on 1.1.3.4 range of style relays having differing rated ranges within a style 1.1.3.5 pull-in (or operate) value (See 103 5501.) the minimum value of coil voltage or current which will cause the relay to pull in or operate when this voltage or current is applied at a stated coil temperature
30、1.1.3.6 drop-out (or release) value (See 103 5502.) the maximum value of coil voltage or current at which the relay will drop out (or release) when the voltage or current is reduced from a specified value, at a stated coil temperature 1.1.3.7 hold value the minimum value of coil voltage or current w
31、hich will hold the relay pulled in (or operated) when the value of coil voltage or current is reduced from a stated value at a stated coil temperature 1.1.3.8 non-operate value the maximum value of coil current or voltage at a stated temperature which will not cause the contact circuit to be changed
32、 from the unenergized condition 1.1.3.9 release factor the ratio expressed as a percentage of the drop-out (or release) value to the pull-in (or operate) value 1.1.3.10 contact force (See 103 1320.) the force between contact points 1.1.3.11 contact chatter a sustained rapid physical opening and clos
33、ing of contact points caused by variation in the coil current or mechanical vibration or both 1.1.3.12 contact gap the distance between specified contact points of a contact unit when the contact circuit is open under specified conditions 1.1.3.13 low-level circuit a closed circuit that is completed
34、 through contact units, any one of which has a maximum open-circuit voltage of 10 mV and a maximum closed-circuit current of 10 mA, either a.c. or d.c. 1.1.3.14 conducting part a part which is capable of conducting current although it may not necessarily be used for carrying circuit current Licensed
35、 Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9150:1983 BSI 12-19993 1.1.3.15 insulation voltage the specified voltage which the insulation of the relay will safely withstand continuously 1.1.3.16 pull-in or opera
36、te time (See 103 3410.) the interval of time between the application of a specified voltage and the first closing (or opening) of a specified contact circuit 1.1.3.17 drop-out or release time (See 103 3411.) the interval of time between the removal of a specified voltage or current with in the rated
37、 range and the first opening (or closing) of a specified contact circuit 1.1.3.18 transit time (See 103 1506.) the interval of time during which both contact circuits of a break-before-make changeover contact unit are open 1.1.3.19 bridging (bunching) time the interval of time during which both cont
38、act circuits of a make-before-break changeover contact unit are closed 1.1.3.20 bounce time for a contact which is closing (opening) its circuit, the time interval between the instant when the contact circuit first closes (opens), and the instant when the circuit is finally closed (opened) 1.1.3.21
39、pull-in plus bounce time the total of pull-in time plus bounce time 1.1.3.22 drop-out plus bounce time the total of drop-out time plus bounce time 1.1.3.23 relay mounting arrangements the specified method of fixing or installing the relay 1.1.3.24 duty cycle the ratio of energization to the total pe
40、riod of intermittent duty. The duty cycle is often expressed as a percentage 1.1.3.25 continuous duty the duty in which the relay remains energized for a period long enough for the relay to reach thermal equilibrium 1.1.3.26 intermittent duty the duty in which the relay does not remain energized for
41、 a period long enough for the relay to reach thermal equilibrium. After switching cycles, a quasi-equilibrium may be reached intermittent duty is specified in terms of the number of cycles per hour, and of the duty cycle 1.1.3.27 temporary duty the duty in which the relay remains energized for a per
42、iod of insufficient length to reach thermal equilibrium, the energized periods being separated by unenergized periods of sufficient duration to restore the relay to ambient temperature Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:06:45 GMT+00:00 2006, Unco
43、ntrolled Copy, (c) BSI BS 9150:1983 4 BSI 12-1999 1.1.3.28 coil power (d.c.) the power which, when divided by the declared resistance of any coil variant and then square rooted gives the exact value of coil current, or which, when multiplied by the declared resistance of any coil variant and then sq
44、uare rooted gives the exact value of coil voltage 1.1.3.29 coil burden (a.c.) the burden which, when divided by the declared impedance of any coil variant and then square rooted gives the exact value of coil current, or which, when multiplied by the declared impedance of any coil variant and then sq
45、uare rooted gives the exact value of coil voltage 1.1.4 Letter symbols, signs and abbreviations Letter symbols, signs and abbreviations shall, wherever possible, comply with BS 5775 1.1.5 Graphical symbols Graphical symbols shall, wherever possible, comply with BS 3939. 1.1.6 Marking of the componen
46、t and package Each relay shall be clearly and indelibly marked with the following information, as space permits: a) number of the detail specification and code number; b) the manufacturers factory code and date code; c) the rated value of coil voltage, or current, or resistance of coils, or relay ty
47、pe, or variants code; d) any special marking required by the detail specification; e) a terminal or circuit diagram; The package shall be marked with the quantity in the package and the information listed above at a), b), c) and d). 1.1.7 Eligibility for qualification approval The first stage of pro
48、cessing in accordance with 14.2 of BS 9000-1:1981 is the assembly of the mechanism to the contact units. Where any relay contains components of a kind covered by another detail specification in the BS 9000 series (e.g. reed contact units) it is desirable (but not mandatory) that these should be rele
49、ased in accordance with BS 9000. Where any contained component is not so released the final manufacturers chief inspector shall be satisfied that its quality is adequate by use of: a) a procurement specification, and b) approval tests, and c) incoming inspection procedure. 1.1.8 Structurally similar components Relays are considered structurally similar if they have no other differences in design than in: a) coil, wire diameter and number of windings; b) types, numbers and material of contacts; c) rated coil and/or contact voltage(s); d) mounting and terminal
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