BS QC 160000-1-1987 Harmonized system of quality assessment for electronic components Electrical relays Generic specification electromechanical all-or-nothing relays Test and measu.pdf

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1、BSI BS*QC*160000 - PART*L 87 m Lb24669 OL28L21 7 m BS QC 160000 : Part 1 : 19&7 IEC 255-7 : I978 UDC 621.31 8.5:620.16/.17 0 British Standards Institution. No part of this publication may be photocopied or otherwise reproduced without the prior permidon in writing of BSI British Standard Harmonized

2、system of quality assessment for electronic components. Electrical relays. G eneric specification: Elect romec ha n ica I al I-or-not h ing relays. Part 1. Test and measurement procedures IEC title: Electrical relays Part 7 : Test and measurement procedures for electromechanical all-or-nothing relay

3、s Systme harmonis dassurance de la qualit des composants lectroniques. Relais lectriques. Spcification gnrique: Relais lectromcaniques de tout-ou-rien. Partie 1. Mthodes dessai et de mesure Harmonisiertes Gtebesttigungssystem fr Bauelemente der Elektronik. Ele kt risc he R ela is. Fachgrundspezifika

4、tion: Elektromechanische Schaltrelais Teil 1. Prf- und Meverfahren British Standards Institution ES1 BS*QC*lb0000 PART* attention is drawn especially to the following. Where page numbers are quoted in the text, they refer to IEC page numbers. Cross-references International standards” Corresponding B

5、ritish Standards IEC 60 BS 923 Guide on high-voltage testing techniques (Separately published Parts are identical) BS 201 1 Basic environmental testing procedures IEC 68- I : 1982 Part 1.1 : 1983 General and guidance (Identical) IEC 68-2-1 : 1974 Part 2. IA : 1977 Test A. Cold (Identical) IEC 68-2-2

6、 : 1974 Part 2.1B : 1977 Tests B. Dry heat (Identical) IEC 68-2-3 : 1969 Part 2.1Ca : 1977 Test Ca. Damp heat, steady state (Identical) IEC 68-2-4 : 1960, Part 2.1Db : 1981 Test Db and guidance: Damp heat, cyclic (12 + 12 hour cycle) withdrawn and replaced by (Identical) IEC 68-2-6 : 1982 IEC 68-2-7

7、 : 1983 IEC 68-2- 10 : 1984 IEC 68-2-1 I : 1981 IEC 68-2- I3 : 1983 IEC 68-2- 14 : 1974 IEC 68-2- 17 : 1978 IEC 68-2-29 : 1979 IEC 68-2-21 : 1983 IEC 68-2-30 : 1980 Part 2.1Fc : 1983 Test Fc. Vibration (sinusoidal) (Identical) Part 2.Ga : 1984 Test Ga. Acceleration, steady state (Identical) Part 2.

8、IJ : 1985 Test J. Mould growth (Identical) Part 2.1 Ka : 1982 Test Ka. Salt mist (Identical) Part 2.1M : 1984 Test M. Low air pressure (Identical) Part 2.1N : 1985 Test N. Change of temperature (Identical) Part 2. IQ : 1981 Test Q. Sealing (Identical) Part 2.IT : 1981 Test T. Soldering (Identical) P

9、art 2. IU : 1984 Test U. Robustness ofteminations and integral mounting devices (Identical) *Undated in the text (except for IEC 255-5 : 1977). BSI BS*QC*Lb0000 PART*3 87 m 11b24bbi 03281123 O m BS OC 160000: Part 1 : 1987 International standards* Corresponding British Standards IEC 68-2-27 : 1972 I

10、EC 68-2-29 : 1968 Part 2. IEa : 1977 Test Ea. Shock (Identical) Part 2.1Eb : 1977 Test Eb. Bump (Identical) IEC 144 : 1963 BS 5420 : 1977 Specification for degrees G, Grotection of enclosures of switchgear and controlgear for voltages up to and including IO00 V a.c. and 1200 V d.c. (Identical) IEC 1

11、47-5 : 1977, BS 6493 Semiconductor devices withdrawn and replaced by Part 3 : 1985 Mechanical and climatic test methods IEC 749 : 1984t (Identical) BS 5992 Electrical relays IEC 255-0-20 : 1974 Part 1 : 1980 Specification for contact performance of electrical relays (Identical) IEC 255-5 : 1977 Part

12、 3 : 1980 Specification forthe insulation testing of electrical relays (Identical) IEC 443 : 1974 BS 5 148 : 1975 Method for specifying the performance of stabilized power supply apparatus (Technically equivalent) The Technical Committee has reviewed the provisions of IEC Publication 50 : Chapter 44

13、6 and IS0 3, to which reference is made in the eext, and has decided that they are acceptable for use in conjunction with this standard. A related British Standard to IEC Publication 50 : Chapter 446 is BS 4727 Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour

14、terms Part I Terms common to power, telecommunications and electronics Group 03 : 1971 Relay terminology. A related British Standard to IS0 3 is BS 2045 : 1962 Specification for preferred numbers. Additional information. In respect of the earthing of the neutral conductor, if the power supply referr

15、ed to in 16.4.2 and 16.4.3 is taken directly from the public supply, care should be taken to ensure that the local supply regulations allow the neutral to be earthed. Ifthis is not the case an isolating transformer will be required. NOTE. Typographical error. In the note to figure 6, following value

16、s should be read as following ratios. Compliance with a BritishStandard does not of itself confer immunity from legal obligations. *Undated in the text(except for IEC 255-5 : 1977). tClause reference unchanged. 1 CONTENTS Foreword Inside front cover Committees responsible. Back cover 1.scope 3 2.Obj

17、ect . 3 Page Clause SECTION ONE - TERMINOLOGY 3 4 5 5 5 7 7 8 SECTION TWO - TEST AND MEASUREMENT PROCEDURES 9 12.General . 9 13. Alternative methods 9 14. Precision of measurement . 9 15. Requirements in detail specifications 16. Standard conditions for testing 17. Visual inspection and check of dim

18、ensions 18. Mechanical tests and weighing . 3. Typesofrelays 4. Functionsofarelay 5. Typesofcontacts . 6. Prefixes for the values applicable to relays 7. Energizationvalues 8. Electrical properties of contacts 9. Application categories of contacts . IO. Mechanical properties of contacts 8 . 1 I. Ter

19、ms relating to times . IO 11 11 12 19. Coil resistance, inductance, impedance and burden 13 20. Dielectrictest 14 21. Impulse voltage test 14 15 22. Insulation resistance 16 23. Contact-circuit resistance (or voltage drop) 17 24. Functional tests 18 21 21 22 23 24 25 . . . . . 25. Timingtests 26. Cl

20、imatic sequence . 27. Damp heat, steady state 28. Thermal resistance 29. Temperature rise . 30. Rapid change of temperature 31. Enclosure 32. Internal moisture . 33. Corrosive atmospheres . 25 34. Mouldgrowth 26 35. Robustness of terminals 26 36. Soldering 27 37.Shock 27 38.Bump 28 39. Vibration, 29

21、 40. Acceleration . 30 41. Electrical endurance 33 42. Mechanical endurance 34 43. Thermal endurance 35 44. Limiting continuous current 35 46. Loadtransfer 37 47. Electromagnetic compatibility 37 . . . 45. Overload (contact circuits) 36 . 37 38 38 38 39 39 40 40 48. Magnetic interference 49. Crossta

22、lk and insertion loss 50. Electrical contact noise 51. Thermoelectric e.ii1.f. 52. Capacitances . 53. Contact sticking . 54. Magnetic remanence . 55. Acoustic noise 56. Continuity of protective earth connection 57. Fluid contamination . 40 58. Resistance to solvents . 41 FIGURES I to 9 42 . 2 BSI BS

23、*QC*Lb0000 PART*1 87 D 1624669 0128125 4 W - BS OC 160000: Part 1 : 1987 British Standard Harmonized system of quality assessment for electronic components. Electrical relays. Generic specificat ion: Electromechan ica I all-or-nothing relays Part I. Test and measurement procedures 1. scope This stan

24、dard states the test and measurement procedures for electromechanical all-or-nothing relays within the scope of the IEC. It covers basic considerations which are, in general, common to all types of relays covered by IEC Publication 255, Electrical Relays, and is of particular interest for all-or-not

25、hing relays of assessed quality. Supplementary requirements may be neces- sitated by specific designs or application. This standard will be extended by other tests intended more specifically for electromechanical all- or-nothing relays, with specified time. 2. Object The object of this standard is t

26、o state, for electromechanical all-or-nothing relays : - special terms and definitions used (Section One) and - test and measurement procedures (Section Two). SECTION ONE - TERMINOLOGY For the purpose of this standard, the following terms and definitions apply: Note. - For the definitions of general

27、 terms used in fhis standard, reference should be made to Chapter 446: Electrical relays. of the International Electrotechnical Vocabulary. (See IEC Publication 50(446).) However, in order to cover both monostable and bistable relays, amendments have been added to those definitions. 3. Types of rela

28、ys 3.1 Electromechancnl relay (I.E. V. 446-01-08) An electrical relay, in which the designed response is developed by the relative movement of mechanical elements under the action of a current in the input circuit(s). 3.2 All-os-nothing selay (LE. V. 446-01-02 modjied) An electrical relay which is i

29、ntended to be energized by a quantity whose value is either: - higher than that at which it operates, - or lower than that at which it releases. Note. - The adjective “all-or-nothing” can be deleted when no ambiguity may occur. Monostable relay (I.E. V. 446-01-121 3.3 An electrical relay which, havi

30、ng responded to an input energizing quantity (or characteristic quantity) and having changed its condition, returns to its previous condition when the quantity is removed. 3 IEC page 91 BS QC 160000 : Part 1 : 1987 3.4 Bistable relay (I.E. V. 446-01-13) BSI BS*QC*Lb0000 PART*I, 87 Lb24669 OL2812b b

31、e An electrical relay which, having responded to an input energizing quantity (or characteristic quantity) and having changed its condition, remains in that condition after the quantity has been removed, Another appropriate further energization is required to make it change over. 3.5 Polarized relay

32、 A relay the change of condition of which depends upon the direction of its input energizing quantity(ies). 3.6 Non-polarized relay A relay the change of condition of which does not depend upon the direction of its input energizing quantity(ies). 4. Functions of a relay 4.1 Release condition (I. E.

33、V. 446-03-01 modijied) For a monostable relay, the specified condition of the relay when it is not energized. For a bistable relay, the conventional condition as declared by the manufacturer. 4.2 Operate Condition (LE. V. 446-03-02 modijied) For a monostable relay, the specified condition of the rel

34、ay when it is appropriately energized. For a bistable relay, the alternate condition to the release condition as declared by the manu- facturer. 4.3 To operate A relay operates when it changes from its release condition to its operate condition. Note. - The term “to operate” is used for both “to pic

35、k up” (I.E.V. 446-03-03) and “to operate” (I.E.V. 446-03-17) of Chapter 446. This term is applicable to both monostable and bistable relays. 4.4 To release A relay releases when it changes from its operate condition to its release condition. Nore. - The term “to release” is used for both “drop out”

36、(I.E.V. 446-03-04) and “return” (446-03-18) of Chapter 44 This term is applicable to both monostable and bistable relays. 4.5 To change over (I.E. V. 446-03-05 modiJied) A relay changes over when it operates or releases. 4.6 To cycle (I.E. V. 446-03-06 modiJied) A relay cycles when it operates and t

37、hen releases, or vice-versa. 4.7 To revert For a particular polarized or bistable relay being in an operate condition, to change from this condition to the release condition by increasing the value of the energizing quantity. IEC page I I 4 BS OC 160000 : Part 1 : 1987 4.8 To revert reverse For a pa

38、rticular bistable relay being in a release condition by an appropriate energization, to change from this condition to the operate condition by increasing the value of this energizing quantity. 5. Types of contacts 5.1 Make contact (I.E.V. 446-06-15 mod$ed) A contact which is closed when the relay is

39、 in its operate condition and which is open when the relay is in its release condition. 5.2 Break contact (I.E. V. 446-06-16 modged) A contact which is open when the reIay is in its operate condition and which is closed when the relay is in its release condition. 6. Prefixes for the values applicabl

40、e to relays Values may be defined as rated, actual (“just”), test (“must”) or characteristic value and identified as such by ushg one of these words as a prefix. The prefixes are also applicable to timing values. 6.1 Rated value (LE. V. 151-04-03) Value of a quantity assigned, generally by a manufac

41、turer, for a specified operating condition of a relay. 6.2 Actual (Yust”) value Value of a quantity measured on a singIe relay when it just performs a specified function. 6.3 Test (“must”) value Value of a quantity at which, during tests, the relay is required to perform or not to perform a specifie

42、d function. 6.4 Characteristic value Value of a quantity at which, throughout its lifetime or a specified number of cycles, the relay is required to comply with a specified requirement. 7. Energization values 7.1 Energizing quantity (I.E. V. 446-02-01) An electrical quantity (either current or volta

43、ge) which alone, or in combination with other such quantities, applied to a relay under specified conditions enabIes it to fulfil its purpose. 5 IEC page 131 BSI BS*QClb0000 PART*3 87 IPI lb24bb 0328328 T e BS QC 160000 : Part 1 : 1987 7.2 Rated value of an energizing quantity Value of an energizing

44、 quantity to which some of the specified characteristics are referred. 7.3 Actual (just”) value of an energizing quantity Value of an energizing quantity measured on a single relay, when it just performs a specified function. 7.4 Test (“must”) value of an energizing quantity Value of an energizing q

45、uantity at which, during tests, the relay is required to perform or not to perform a specified function. 7.5 Characteristic value of an energizing quantity Value of an energizing quantity at which, throughout its lifetime or a specified number of cycles, the relay is required to comply with a specif

46、ied requirement. 7.6 Operative range of an energizing quantity (I.E.V. 446-02-11) The range of values of an energizing quantity for which the relay under specified conditions is able to perform its intended function($ according to the specified requirements. 7.7 Magnetic preconditioning valtre For t

47、his term and for the following terms refer also to Figures 1 to 5, pages 87 to 89, which show the sequential functions of relays covered by the dejnitions. Value of the energizing quantity at which the relay attains a defined magnetic condition. Notes I. - For polarized relays, distinction is made b

48、etween preconditioning in forward (operate) direction, and precon- ditioning in reverse direction. 2. - For bistable relays, preconditioning may also be used to set the relay to a defined position. 7.8 Non-operate value Value of the energizing quantity at which a relay does not operate. 7.9 Operate

49、value Value of the energizing quantity at which a relay operates. 7.1 O Non-release value Value of the energizing quantity at which a relay does not release. 7.1 1 Release value Value of the energizing quantity at which a relay releases. 7.12 Non-revert value Value of the energizing quantity exceeding the operate value at which a particular polarized or bistable relay does not revert. IEC page 151 6 BS OC 160000: Part 1 : 1987 7.13 Reverse non-revert value Value of the energizing quantity exceeding the release value at which a particul