ASD-STAN PREN 3645-001-2014 Aerospace series Connectors electrical circular scoop-proof triple start threaded coupling operating temperature 175 or 200 continuous Part 001 Technica.pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 3645-001 Edition P 3 May 2014 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Avenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Supersedes editio

2、n P 2 of January 2012 and will supersede EN 3645-001:2013 Descriptors: ENGLISH VERSION Aerospace series Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 C or 200 C continuous Part 001: Technical specification Srie arospatiale Connecteurs lectri

3、ques circulaires, contacts protgs, accouplement par filetage, pas rapide trois filets, temprature dutilisation 175 C ou 200 C continu Partie 001 : Spcification technique Luft- und Raumfahrt Elektrische Rundsteckverbinder, kontaktgeschtzt, Drei-gangige Gewinde-Schnelkupplung, Betriebstemperatur 175 C

4、 oder 200 C konstant Teil 001: Technische Lieferbedingungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It

5、has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the

6、 standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to impleme

7、nt the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1stMay 2014 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyrig

8、ht 2010 by ASD-STAN prEN 3645-001:2014 (E) 2 Contents Page Foreword 2 Introduction .3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Description .5 5 Design .6 6 Definition drawings and masses 7 7 Tests 63 8 Quality assurance 78 Foreword This standard was reviewed by the Domain Tech

9、nical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3645-001:2014 (E) 3 Introduction This family of connectors is derive

10、d from MIL-DTL-38999 series III, with which it is intermateable and interchangeable. It is particularly suitable for use in zones of severe environmental conditions on board aircraft, applying EN 2282. These connectors are distinguishable from MIL-DTL-38999 by: A compatibility with size 8 power and

11、quadrax contacts; Self-extinguishing materials; Compatibility with reduced diameter cables; Additional reinforced fuel resistant insert type; Additional insert with grounded cavities. prEN 3645-001:2014 (E) 4 1 Scope This standard specifies the general characteristics, the conditions for qualificati

12、on, acceptance and quality assurance, as well as the test programs and groups for threaded ring coupling circular connectors, fire-resistant, intended for use in a temperature range from 65 C to 175 C continuous or 200 C continuous according to the classes. 2 Normative references The following docum

13、ents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2267-002, Aerospace ser

14、ies Cables, electrical, for general purpose Operating temperatures between 55 C and 200 C Part 002: General EN 2282, Aerospace series Characteristics of aircraft electrical supplies EN 2346, Aerospace series Fire resistant electrical cables Dimensions, conductor resistance and mass EN 2424, Aerospac

15、e series Marking of aerospace products EN 2591-100 (all parts), Aerospace series Elements of electrical and optical connection Test methods Part 100: General EN 3197, Aerospace series Installation of aircraft electrical and optical interconnection systems EN 3645-002, Aerospace series Connectors, el

16、ectrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 C or 200 C continuous Part 002: Specification of performance and contact arrangements EN 3909, Aerospace series Test fluids for electric components and sub-assemblies EN 9133, Aerospace series Quality manageme

17、nt systems Qualification procedure for aerospace standard parts ISO 68-1, ISO general purpose screw threads Basic profile Part 1: Metric screw threads ISO 261, ISO general-purpose metric screw threads General plan ISO 262, ISO general-purpose metric screw threads Selected sizes for screws, bolts and

18、 nuts ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limit sizes for general purpose external and internal screw threads Medium quality ISO 4524-1, Metallic coatings Test methods for electrodeposited gold and gold alloy coatings Part 1: Determination of coating thickness MIL-

19、DTL-38999K, Connectors, electrical, circular, miniature, high density, quick disconnect (bayonet, threaded, and breech coupling), environment resistant, removable crimp and hermetic solder contacts, general specification for 1)1) Published by: DoD National (US) Mil. Department of Defense http:/www.d

20、efenselink.mil/. prEN 3645-001:2014 (E) 5 MIL-HDBK-454, General guidelines for electronic equipment 1)MIL-STD-1373, Screw-thread, modified, 60, stub, double 1)MIL-STD-1560B, Department of Defense interface standard: insert arrangements for 1)3 Terms and definitions For the purposes of this document,

21、 the terms and definitions given in EN 2591-100 apply. 4 Description 4.1 General Different variants of materials, housings and contact arrangements are provided according to the classes depending on the service conditions. The pair of connectors is characterized: by shell to shell bottoming; by its

22、triple threaded and self-locking coupling system; by plugs with shielding ring providing protection against radioelectrical interference; by the scoop-proof shells. These connectors use the following contacts: crimped sizes 22, 20, 16, 12, 10 and 8; soldered (model Y) sizes 22, 20, 16 and 12; coaxia

23、l crimped or soldered sizes 16, 12 and 8; For arrangements comprising the letter G or Q, all contacts are grounded to the receptacle housing triaxial crimped or soldered size 8; quadrax crimped size 8. The receptacles and plugs contain either male contacts or female contacts. The contacts fitted in

24、the class Y receptacles are exclusively of the male solder type. The connectors are polarized by means of keyways and keys; polarization shall be obtained before the male contacts enter the insert of the female contacts and before the coupling ring is engaged. The position of the keying arrangement

25、is given in Table 5. The visual check of coupling is obtained by masking of a red colour band on the receptacle. 4.2 Receptacle The receptacle housing may be attached: square flange; nut, with sealing by O-ring at the attachment; round soldered or brazed flange for class Y connectors. 4.3 Plug The c

26、oupling ring is permanently fitted to the plug and allows coupling and uncoupling of the connectors. The lanyard release version may also be uncoupled by pulling on the lanyard. prEN 3645-001:2014 (E) 6 The plug is fitted with a self-locking mechanism and a grounding spring device ensuring electrica

27、l continuity between the coupled connector housings. An anti-decoupling device shall be provided to maintain complete coupling. 4.4 Materials and surface treatment 4.4.1 General When dissimilar metals are in close contact, adequate protection against corrosion shall be used for the electromotive for

28、ce of the cell not to exceed 0,25 V (see EN 3197). 4.4.2 Housing The material of the housings for the connectors and fittings may be either aluminium alloy, passivated stainless steel or composite. Aluminium alloy and composite shall be plated as defined by the class (composite coupling rings and He

29、x nut may be unplated) (see EN 3645-002). 4.4.3 Contacts Unless otherwise specified, the non-removable contacts shall be in ferrous alloy for class Y and in copper alloy for the other classes. They shall be gold-plated on an appropriate undercoat. Selective protection is authorized provided that it

30、is sufficient to ensure that the specified performance is achieved. Measurement of the thickness of the protective plating shall be effected in accordance with ISO 4524-1. For removable contacts, see EN 3645-002. 4.4.4 Non-metallic materials The materials used for insert, seals and grommets shall ha

31、ve a hardness and mechanical and electrical characteristics consistent with the required use. 5 Design 5.1 Housings The connector housings shall be one-piece. They shall contain teeth at the rear over their entire periphery and shall accommodate the rear accessories. The receptacle shall be fitted w

32、ith a seal for sealing the coupled housings. Jam-nut receptacles shall contain an O-ring seal. The nut shall have holes for the passage of locking wire. During coupling the grounding spring shall be engaged a minimum of 1,02 mm in the receptacle before the contacts engage. Except for the triple star

33、t threads, which shall conform to standard MIL-STD-1373, threads shall conform to standards ISO 68-1, ISO 261, ISO 262 and ISO 965-2. The coupling ring shall be designed so that the male and female contacts engage when it is turned in a clockwise direction and disengage when turned anticlockwise. Th

34、e coupling threads may have a lubricant applied during manufacture. Full locking of the connectors shall occur at about 360. On completion of tightening of the coupling ring, mechanical contact shall exist between the receptacle and plug housings. A red band shall be located on the receptacle so as

35、to be visible when unmated and fully covered when completely mated. prEN 3645-001:2014 (E) 7 The receptacle has five keyways which engage with corresponding keys on the plug. The major key is fixed and is wider than the others. Polarization is ensured by the different positions which the minor keys

36、may take. The position of the insert is fixed relative to the major key. A blue-coloured band indicating that the crimped contacts of the connectors are rear-releasable shall be provided: in front of the flange on square flange receptacles; on the flange of jam-nut receptacles; on the coupling ring

37、of plugs. This band shall be positioned so that at least one is visible when the connectors are fitted and when they are mated or unmated. Hermetic receptacles do not require blue colour band. 5.2 Inserts The insert for contacts shall be non-removable; it shall be mechanically held in the housing. S

38、ealing shall be provided between the housing and insert. The front face of the insert shall be such that sealing 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 diam

39、eters indicated in EN 3645-002 and shall not be removable. The mechanical contacts retention system shall be integrated 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

40、contacts shall be from the rear with the tools specified in the contact product standards. Contact position identification shall be permanent and contrasted on the front face of the insert or the interfacial seal and on the rear face of the grommet as indicated in 6.6. The marking shall not be reces

41、sed or raised on the surfaces providing a seal. 6 Definition drawings and masses 6.1 General The general dimensions and the masses of receptacles, plugs and protective covers are given in the product standards. prEN 3645-001:2014 (E) 8 6.2 Receptacle mating dimensions The mating dimensions of recept

42、acles are shown in Figure 1 and details V and W as well as in Tables 1, 2 and 3. Dimensions and tolerances are in millimetres. aThe distance between the front face of the shell and the point where the right end of a gauge with a diameter equal to the nominal diameter of a male contact comes into con

43、tact with the elastic part of the female contact. Figure 1 Receptacle Coupling dimensions prEN 3645-001:2014 (E) 9 Table 1 Receptacle Dimensions (1 to 2) Housing size A B C D E F max. 0,13 0,25 max. 09 14,55 14,42 14,14 7,24 11,36 11,20 12,63 12,34 15,88 11 17,73 17,60 17,32 10,49 14,61 14,45 15,88

44、15,60 19,05 13 20,90 20,77 20,49 13,39 17,45 17,30 19,66 19,38 22,23 15 24,08 23,95 23,67 16,56 20,63 20,44 22,84 22,56 25,40 17 28,52 28,30 27,97 19,74 23,80 23,64 26,01 25,73 30,16 19 30,12 29,89 29,56 22,00 26,47 26,31 28,63 28,40 31,75 21 33,30 33,07 32,74 25,17 29,64 29,49 31,85 31,57 34,73 23

45、36,47 36,24 35,91 28,35 32,82 32,66 35,03 34,75 38,10 25 39,65 39,42 39,09 31,52 35,99 35,84 38,20 37,92 41,28 Table 1 Receptacle Dimensions (2 to 2) Contact size M N max. P R S 22 1,35 1,27 0,71 1,88 1,75 0,97 0,89 1,70 1,60 20 1,91 1,83 0,97 2,44 2,31 1,32 1,24 2,26 2,16 16 2,49 2,41 1,52 3,02 2,9

46、0 1,88 1,80 2,84 2,74 12 3,30 3,23 2,34 3,84 3,71 2,69 2,62 3,66 3,56 10 4,09 4,01 3,12 4,62 4,50 3,48 3,40 4,45 4,34 8 6,50 6,38 5,49 7,06 6,93 5,84 5,77 6,81 6,71 prEN 3645-001:2014 (E) 10 Table 2 Receptacle Thread BB - Thread Housing size Designation a Class 2A thread See note b External threadin

47、g Class 2A Thread size Apparentpitch Actual pitch External diameter Diameter on side Diameter at thread end inch inch inch max. min. max. min. max. min. 09 0,625 0 0,100 0,300 0,038 115,83 15,63 15,17 14,97 14,41 14,05 11 0,750 0 19,01 18,80 18,35 18,14 17,58 17,23 13 0,875 0 22,18 21,98 21,52 21,32

48、 20,76 20,41 15 1,000 0 25,36 25,15 24,70 24,49 23,94 23,58 17 1,187 5 30,11 29,80 29,24 28,99 28,28 27,82 19 1,250 0 0,050 831,69 31,39 30,83 30,58 29,87 29,41 21 1,375 0 34,87 34,56 34,01 33,75 33,05 32,59 23 1,500 0 38,04 37,74 37,18 36,93 36,22 35,76 25 1,625 0 41,22 40,91 40,36 40,10 39,40 38,9

49、4 aAccording to MIL-STD-1373. bGauges for protected threads: it is permissible to increase the maximum limit for gauge diameters by the value specified in this column.prEN 3645-001:2014 (E) 11 6.3 Plug mating dimensions The mating dimensions of plugs are shown in Figure 2 and detail X in details V and W of Figure 1 and in Tables 3 and 4. Dimensions and tolerances are in millimetres. Detail X Key 1 Spring finger aThe distance between the shell shoulder and