AECMA PREN 3476-001-2001 Aerospace Series Connectors Electrical Circular Bayonet Coupling Operating Temperature 175 Degrees C or 200 Degrees C Continuous Part 001 Technical Specifi.pdf

1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication Comments should be sent within six months after the date of publication to Gulledelle 94 2001-11-30 AECMA-STAN 6-1200 BRUXELLES prEN 3646-001 Edition P I November 2001 Electrical Domain Mr Peuetta PUBLISHED BY THE EUROPEAN ASSOCI

2、ATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 1 I ICs: 49.060 Descriptors: Aeronautical industry, aircraft equipment, electrical connection equipment, electrical connector, characteristics, test, quality a

3、ssurance ENGLISH VERSION Aerospace series Connectors, electrical, circular, bayonet coupling, operating temperature 175 “C or 200 “C continuous Part O01 : Technical specification Srie arospatiale Luft- und Raumfahrt Connecteurs lectriques circulaires Elektrische Rundsteckverbinder accouplement par b

4、aonnettes, temprature dutilisation 175 “C ou 200 “C continu Partie 001 : Specification technique mit Bajonettkupplung, Betriebctemperatur 175 “C oder 200 “C konstant Teil O01 : Technische Lieferbedingungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (

5、The European Association of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard,

6、the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN it will be submitted as a draft European Standard to CEN (Europ

7、ean Committee for Standardization) for formal vote. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 2 prEN 3646-001: 2001 Contents Page O I 2 3 4

8、5 6 7 8 9 10 11 12 Introduction . . Definitions . . . Design Definition drawings and masses . Designation and marking Packaging . 3 3 3 4 4 5 6 24 34 39 39 39 39 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reprodu

9、ction or networking permitted without license from IHS-,-,-Page 3 prEN 3646-001: 2001 O Introduction This family of connectors is derived from MIL-C-26482GI series 2, the NAS 1599 bayonet connector with which it is intermateable and which uses MIL-C-39029D for the contacts. It is particularly suitab

10、le for use on aircraft applying EN 2282. These connectors are distinguishable from MIL-C-26482G and NAS 1599 by: - being of a lower mass; - having reduced dimensions; - accepting smaller cables. 1 Scope This standard specifies the general characteristics, the conditions for qualification, acceptance

11、 and quality assurance, as well as the test programmes and groups for bayonet coupling circular connectors, intended for use in an operating temperature range of - 65 “C to 175 “C or 200 “C continuous according to the class and models. 2 Norm a tive references This European Standard incorporates by

12、dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated and undated references, subsequent amendments to or revisions of any of these publications apply to this Eur

13、opean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 263 IS0 4524-1 EN 2266-002 EN 2282 EN 2591* EN 2591-100 EN 3042 EN 3155-001 EN 3197 EN 3646-002 AS 1241C MIL-A-8243D MIL-C-25769J MIL-C-26482G I

14、nch screw threads - General plan and selection for screws, bolts and nuts - Diameter range 0,06 to 6 Metallic coatings - Test methods for electrodeposited gold and gold alloy coatings - Part 1 : Determination of coating thickness Aerospace series - Cables, electrical, for general purpose - Operating

15、 temperatures between - 55 “C and 200 “C - Part 002: General 1) Aerospace series - Characteristics of aircraft electrical supplies Aerospace series - Elements of electrical and optical connection - Test methods Aerospace series - Elements of electrical and optical connection - Test methods - Part 10

16、0: General 1) Aerospace series - Quality assurance - EN aerospace products - Qualification procedure Aerospace series - Electrical contacts used in elements of connection - Part 001: Technical specification 1) Aerospace series - Installation of aircraft electrical and optical interconnection systems

17、 1) Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 “C or 200 “C continuous - Part 002: Specification of performance and contact arrangements 1) Fire Resistant Phosphate Ester Hydraulic Fluid for Aircraft 2) Anti-icing and Deicing-Defrosting Fluids 3)

18、 Cleaning Compound, Aircraft Surface, Alkaline Water Base Fluids 3) Connector, Electrical, (Circular, Miniature, Quick Disconnect, Environment Resisting), Receptacles and Plugs, General Specification for 3) And all its parts quoted in this standard 1) Published as AECMA Prestandard at the date of pu

19、blication of this standard 2) Published by: Society of Automotive Engineers, Inc. (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networkin

20、g permitted without license from IHS-,-,-Page 4 prEN 3646-001: 2001 MIL-C-39029D Contacts, Electrical Connector, General Specification for 3) MIL-HDBK-454 General Guidelines for Electronic Equipment 3) MIL-H-5606G Hydraulic Fluid, Petroleum Base; Aircraft; Missile and Ordnance 3) MIL-PRF-7808L Lubri

21、cating Oil, Aircraft Turbine Engine, Synthetic Base 3) MIL-PRF-7870C Lubricating Oil: General Purpose, Low Temperature 3) MIL-PRF-23699F Lubricating Oil, Aircraft Turbine Engine, synthetic base, NATO Code Number 0-1 56 3) NAS 1599 (Inactive) Connectors, General Purpose, Electrical, Miniature Circula

22、r, Environment Resisting, 200 “C Maximum Temperature 4) TR 4257 Aerospace series - Elements of electrical and optical connection - Relationship between the numbering systems for parts of EN 2591 5) 3 Definitions See EN 2591 -100. 4 Description 4.1 Gen era I Different variants of materials, housings

23、and contact arrangements are provided according to the models depending on the service conditions. These connectors use crimp or solder contacts of sizes 20, 16 and 12. The receptacles and plugs contain either male contacts or female contacts. The contacts fitted in the model Y receptacles are exclu

24、sively of the male non removable solder type. The connectors are polarized by means of keyways and keys. When all the male contacts are in place, polarization is obtained by different angular positions of the insulator in relation to the main slot or locking key and shall occur before the coupling r

25、ing can carry out its function. The visual check of coupling is obtained by viewing the locking pins through the inspection holes in the coupling ring of the plug. 4.2 Receptacle The receptacle may be attached by: - square flange; - nut, with sealing by O-ring at the attachment; - round soldered or

26、brazed flange for model Y connectors. The receptacle contains five keyways in which the keys of the plug engage. The main keyway is fixed and is wider than the others. Polarization is ensured by the different angular positions of the inserts. 4.3 Plug The plug contains five keys which engage in the

27、keyways of the receptacle. The main key is wider than the others. Polarization is ensured by the different angular position of the inserts. The coupling ring permanently fitted on the plug enables the connectors to be coupled and uncoupled. The internal guides of the coupling ring may be treated wit

28、h a suitable lubricant compatible with the performance required in this standard. The plug of models RS and WS is fitted with a grounding spring device ensuring electrical continuity between the coupled connector housings. 3) Published by: Department of Defense (DOD), the Pentagon, Washington, DC 20

29、301, USA 4) Published by: Aerospace industries Association of America, inc. (AIA), 1250 Eye Street, NW; Suite 1100, Washington, DC 20005, USA 5) Published as AECMA Technical Report at the date of publication of this standard Copyright Association Europeene des Constructeurs de Materiel Aerospatial P

30、rovided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 5 prEN 3646-001: 2001 4.4 Materials and surface treatment 4.4.1 General When different metals are in close contact, adequate protection against corrosion shall be used for t

31、he electromotive force of the cell not to exceed 0,25 V (see EN 31 97). 4.4.2 Housings The material of the housing for the connectors and for the fittings may either be passivated stainless steel or light alloy protected against corrosion by nickel or black anodized cadmium plating (see EN 3646-002)

32、. 4.4.3 Contacts Unless otherwise specified, the contacts shall be in ferrous alloy for models Y and in copper alloy for the other models. They shall be gold-plated on an appropriate undercoat. Selective protection is authorized provided that it is sufficient to ensure that performance is respected.

33、 Measurement of the thickness of the protective treatment shall be effected in accordance with IS0 4524-1. 4.4.4 Non-metallic materials The materials used for insert, seals and grommets shall have a hardness and mechanical and electrical characteristics consistent with the required use. 5 Design 5.1

34、 Housings The connector housings shall be in one unit. At the rear of the connector housing there shall be either three teeth at 120“ intervals or teeth around the entire periphery. These teeth shall accomodate back shells or other fittings. The receptacle shall furthermore be fitted with an O-ring

35、seal for sealing the coupled housings. Receptacles for attachment by nut shall contain an O-ring seal. The nut shall have holes for the passage of locking wire. The threads shall conform to IS0 263. The coupling ring shall be designed so that the male and female contacts engage when it is turned in

36、a clockwise direction in the right and disengage when it is turned anticlockwise. The coupling ring shall be knurled. The rear fittings shall compress the grommet of the connectors without twisting it. 5.2 Inserts The insert carrying the male and female contacts shall be in hard material and have a

37、cross section and radii such that no cracks, flaking or breaks can occur in normal operation. The insert for contacts shall be non-removable; it shall be mechanically held in the housing. Sealing shall be provided between the housing and insert. The front face of the insert shall be such that sealin

38、g is ensured when the connectors are coupled. The interfacial seal of the insert of the male contacts shall be bonded on the hard insert. The grommet shall permit sealing for all cable diameters indicated in EN 3646-002 and shall not be removable. The mechanical contacts retention system shall be in

39、tegrated in the hard insert. The design of non-hermetic connectors shall permit individual installation of the contacts without removal of the insert or grommet. Fitting and removal of the contacts shall be from the rear with the tools specified in the contact product standards. Copyright Associatio

40、n Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 6 prEN 3646-001: 2001 6 Definition drawings and masses The general dimensions and the masses of receptacles, plugs and

41、 protective covers are given in the product standards. 6.1 Receptacle mating dimensions The mating dimensions of receptacles are shown in figure 1 and details A and 6 as well as in tables 1,2 and 3. Dimensions and tolerances are in millimetres. Y -e 1-1 I I B (8:l) A (84) 0.89 + I d Key 1 a Shells 0

42、8 to 18: 5 min. Shells 20 to 24: 6 min. Position of point of electrical contact 2 3 730 to 1 l“30 Radius or chamfer 0,2 mm to 0,381 mm Figure I - Receptacle a a a Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reprod

43、uction or networking permitted without license from IHS-,-,-Housing 1 A B C ID H +0,18 J K O -F 0,15 - 0,4 - 0,05 08 10 12,02 9,19 7,24 14,99 12,44 10,21 22 I 9,98 2807 9,60 34,93 30,78 4,38 40,89 3,18 8 - 3Aor 8 - 98 12- 10 A, B, C C, G Page 7 prEN 3646-001: 2001 Table 1 - Receptacle - Mating dimen

44、sions E F size t 0,02 + 0,13 I -0,13 I -0,02 I max. I 8,40 8,lO 0,56 020 I 24999 I 19,46 18 I 28,58 1 24,43 1 21,72 I 20 I 31,75 I 27,61 I 24,89 I 10,oo 9,70 2,13 1,78 24 I 38,lO I 33,96 1 31,22 I Table 2 - Details A and B size Contact I I I U max. 20 3,68 _ - 3,66 3,81 2,06 1 3,50 I 3,71 I 1,80 3,9

45、4 5,18 533 2,84 l2 I 503 1 523 1 239 I I I I a See table 3. - Table 3 - Reduced contact cavities - Housing size and r- contact arrangements Reduced contact cavities I 8-33 I - - 16 - 26 IA, B, C, D, E, F, G, H, J, K, L, M, N, P, R I I 18-32 (A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T I Copyri

46、ght Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 8 prEN 3646-001: 2001 6.2 Plug mating dimensions The mating dimensions of plugs are shown in figures 2 a

47、nd 3 and in tables 4 and 5. Dimensions and tolerances are in millimetres. 4.45 max. -1 yy-5 5 21 4 C Coupling ring, bayonet groove detail Key 1 2 3 4 5 a Seefigure 1. Three mated connectors holes (design optional) Reference. Locking point of the coupling ring. Three bayonet groves equally spaced wit

48、hin 0,13 with three holes equally spaced within 0,25 for visual inspection of coupling (see detail C). Spring ground ring shall have at least six fingers by 25,4 m length. Diameter L over spring finger Figure 2 - Plug -1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provi

49、ded by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 9 prEN 3646-001: 2001 9,22 9,OO Table 4 - Plug - Mating dimensions 16,72 14,63 9,37 7,42 19,79 17,70 12,62 10,39 1,12 9,02 23,70 22,12 15,60 13,28 0,68 836 27,40 2527 18,77 475 16,46 30,53 28,44 230 21,95 19,61 2,87 I l l I _ 18 20 22 24 i! 1 12,24 1 9,04 1 7,24 1 15