1、BSI BS*QC*160000 - PART*L 87 m Lb24669 OL28L21 7 m BS QC 160000 : Part 1 : 19 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 British Standards IEC 60 BS 923 Guide on hi
2、gh-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 : 1974 Part 2.1B : 1977 Tests B. Dry heat
3、 (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state (Identical) IEC 68-2-4 : 1960, Part 2.1Db : 1981 Test Db and guidance: Damp heat, cyclic (12 + 12 hour cycle) withdrawn and replaced by (Identical) IEC 68-2-6 : 1982 IEC 68-2-7 : 1983 IEC 68-2- 10 : 1984 IEC 68-2-1 I :
4、 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. IJ : 1985 Test J. Mould growth (Identical)
5、 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) Part 2. IU : 1984 Test U. Robustness oftemi
6、nations 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 IEC 68-2-29 : 1968 Part 2. IEa : 1977 Test
7、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 147-5 : 1977, BS 6493 Semiconductor devices
8、 withdrawn and replaced by Part 3 : 1985 Mechanical and climatic test methods IEC 749 : 1984t (Identical) BS 5992 Electrical relays IEC 255-0-20 : 1974 Part 1 : 1980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 3 : 1980 Specification forthe insulation
9、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 446 and IS0 3, to which reference is made in
10、 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 terms Part I Terms common to power, teleco
11、mmunications 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 referred to in 16.4.2 and 16.4.3 is taken direct
12、ly 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 values should be read as following ratios. Comp
13、liance 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.Object . 3 Page Clause SECTION ONE - TERMINOL
14、OGY 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 dimensions 18. Mechanical tests and weighing
15、. 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. Terms relating to times . IO 11 11 12 19. Coi
16、l 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. Climatic sequence . 27. Damp heat, steady st
17、ate 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 40. Acceleration . 30 41. Electrical endu
18、rance 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. Crosstalk and insertion loss 50. Electrical conta
19、ct 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*QC*Lb0000 PART*1 87 D 1624669 0128125 4 W
20、 - 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 standard states the test and measurement proce
21、dures 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-nothing relays of assessed quality. Supplemen
22、tary 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 to state, for electromechanical all-or-noth
23、ing 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 terms used in fhis standard, reference sh
24、ould 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 relays 3.1 Electromechancnl relay (I.E. V. 446
25、-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 intended to be energized by a quantity whos
26、e 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, having responded to an input energizing quanti
27、ty (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 e An electrical relay which, having respon
28、ded 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 A relay the change of condition of which
29、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. V. 446-03-01 modijied) For a monostable re
30、lay, 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 relay when it is appropriately energized. For
31、 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 pick up” (I.E.V. 446-03-03) and “to operate”
32、(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” (I.E.V. 446-03-04) and “return” (446-03-18
33、) 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 then releases, or vice-versa. 4.7 To revert
34、 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 particular bistable relay being in a release
35、 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 in its operate condition and which is ope
36、n 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 applicable to relays Values may be defined as rated
37、, 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 manufacturer, for a specified operating condition
38、 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 specified function. 6.4 Characteristic value Value
39、 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 voltage) which alone, or in combination with ot
40、her 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 quantity to which some of the specified c
41、haracteristics 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 quantity at which, during tests, the relay
42、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 specified requirement. 7.6 Operative range of an
43、 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 this term and for the following terms refer
44、 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 between preconditioning in forward (operate
45、) 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 value Value of the energizing quantity at
46、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
47、 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 particular bistable relay does not revert reverse. 7.14 Reverse polarity value Value of the energizing quanti
48、ty of reverse polarity at which a polarized monostable relay does not operate. 8. Electrical properties of contacts 8.1 Contact airrent The current which a relay contact carries before opening or after closing. 8.2 Contact voltage The voltage between the contact members before closing or after openi
49、ng. 8.3 Limiting continuous current (LE. V. 446-06-1 7 moded) The highest value of the current (r.m.s. if a.c.), which a previously closed contact circuit is capable of carrying continuously. 8.4 Contact noise The spurious voltage which appears across the terminations of a closed contact. 9. Application categories of contacts 9.1 Category O contact A contact characterized by a maximum contact voltage of 30 mV, and a maximum contact current of 10 mA. 9.2 Category 1 contact A contact characterized by a contact voltage between 30 mV and 60 V, and a contact
