1、BSI Standards PublicationBS EN 3646-001:2015Aerospace series Connectors, electrical, circular,bayonet coupling, operatingtemperature 175 C or 200 CcontinuousPart 001: Technical specificationBS EN 3646-001:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 3646
2、-001:2015.It supersedes BS EN 3646-001:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.Th
3、is publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 89601 9ICS 49.060Compliance with a British Standard cannot confer immun
4、ity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 3646-001:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3646-0
5、01 November 2015 ICS 49.060 Supersedes EN 3646-001:2007English Version Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 C or 200 C continuous - Part 001: Technical specification Srie arospatiale - Connecteurs lectriques circulaires accouplement par bao
6、nnettes, temprature d utilisation 175 C ou 200 C continu - Partie 001: Spcification technique Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung, Betriebstemperatur 175 C oder 200 C konstant - Teil 001: Technische Lieferbedingungen This European Standard was approved by CEN on
7、 8 June 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be
8、 obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to t
9、he CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ir
10、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Ce
11、ntre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3646-001:2015 EBS EN 3646-001:2015EN 3646-001:2015 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative referenc
12、es 5 3 Terms and definitions . 5 4 Description 6 5 Design 7 6 Definition drawings and masses 8 7 Tests 31 8 Quality assurance . 42 9 Designation and marking 47 10 Delivery conditions . 47 11 Packaging 47 12 Storage . 47 BS EN 3646-001:2015EN 3646-001:2015 (E) 3 European foreword This document (EN 36
13、46-001:2015) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Ser
14、vices of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2016, and conflicting national standards shall be withdrawn at the lates
15、t by May 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 3646-001:2007. According to the CEN-CENELEC
16、 Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela
17、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 3646-001:2015EN 3646-001:2015 (E) 4 Introduction This family of connectors is derived from MIL-DTL-26482, ser
18、ies 2, the NAS 1599 bayonet connector with which it is intermateable and which uses AS-39029 for the contacts. It is particularly suitable for use on aircraft applying EN 2282. These connectors are distinguishable from MIL-DTL-26482 and NAS 1599 by: being of a lower mass; having reduced dimensions;
19、accepting smaller cables. BS EN 3646-001:2015EN 3646-001:2015 (E) 5 1 Scope This standard specifies the general characteristics, the conditions for qualification, acceptance and quality assurance, as well as the test programmes and groups for bayonet coupling circular connectors, intended for use in
20、 an operating temperature range of 65 C to 175 C or 200 C continuous according to the class and models. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition c
21、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2266-002, Aerospace series Cables, electrical, for general purpose Operating temperatures between 55 C and 200 C Part 002: General EN 2282, Aerospace series Characteristics of a
22、ircraft electrical supplies EN 2591-100*, Aerospace series Elements of electrical and optical connection Test methods Part 100: General EN 3155-001, Aerospace series Electrical contacts used in elements of connection Part 001: Technical specification EN 3197, Aerospace series Installation of aircraf
23、t electrical and optical interconnection systems EN 3646-002, Aerospace series Connectors, electrical, circular, bayonet coupling, operating temperature 175 C or 200 C continuous Part 002: Specification of performance and contact arrangements EN 9133, Aerospace series Quality management systems Qual
24、ification procedure for aerospace standard parts ISO 263, Inch screw threads General plan and selection for screws, bolts and nuts Diameter range 0,06 to 6 in ISO 4524-1, Metallic coatings Test methods for electrodeposited gold and gold alloy coatings Part 1: Determination of coating thickness AS 39
25、029, Contacts, electrical connector, general specification for1)MIL-DTL-26482H, Connector, electrical, (circular, Miniature, quick disconnect, environment resisting), receptacles and plugs, general specification for2)MIL-HDBK-454N, General guidelines for electronic equipment2)NAS 1599, (Inactive) Co
26、nnectors, general purpose, electrical, miniature circular, environment resisting, 200 C maximum temperature3)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 2591-100 apply. *And all parts quoted in this standard. 1)Published by: Society of Automotive
27、Engineers, Inc. (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA (http:/www.sae.org/). 2)Published by: Department of Defense (DOD), the Pentagon, Washington, DC 20301, USA (http:/www.defenselink.mil/). 3)Published by: Aerospace Industries Association of America, Inc. (AIA), 1250 Eye Str
28、eet, NW; Suite 1100, Washington, DC 20005, USA (http:/www.aia-aerospace.org). BS EN 3646-001:2015EN 3646-001:2015 (E) 6 4 Description 4.1 General Different variants of materials, housings and contact arrangements are provided according to the models depending on the service conditions. These connect
29、ors use crimp or solder contacts of size 20, size 16 and size 12. The receptacles and plugs contain either male contacts or female contacts. The contacts fitted in the model Y receptacles are exclusively of the male non removable solder type. The connectors are polarized by means of keyways and keys
30、. 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 ring can carry out its function. The visual check of coupling is obtained by viewing the locking pins th
31、rough 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 brazed flange for model Y connectors. The receptacle contains five keyways in which the keys of the plug enga
32、ge. 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 keyways of the receptacle. The main key is wider than the others. Polarization is ensured by the different an
33、gular 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 with a suitable lubricant compatible with the performance required in this standard. The plug of models RS and W
34、S is fitted with a grounding spring device ensuring electrical continuity between the coupled connector housings. 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 the electromotive force of the cell
35、not to exceed 0,25 V (see EN 3197). 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, black anodized or cadmium plating (see EN 3646-002). BS EN 3646-001:2015EN 3646-001:20
36、15 (E) 7 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 res
37、pected. Measurement of the thickness of the protective treatment shall be effected in accordance with ISO 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 Des
38、ign 5.1 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 accommodate cable outlets or other fittings. The receptacle shall furthermore be fitted with a
39、n O-ring 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 ISO 263. The coupling ring shall be designed so that the male and female contacts engage when it is t
40、urned clockwise and disengaged when it is turned counter-clockwise. The coupling ring shall be knurled. The cable outlets shall compress the connector grommets without distorting it. 5.2 Inserts The insert carrying the male and female contacts shall be in hard material and have a cross section and r
41、adii 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 sealing is ensured when t
42、he 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 integrated in the har
43、d insert. The design of non-hermetic connectors shall permit individual installation of the contacts without removal of the insert or grommet. Insertion and removal of the contacts shall be from the rear, with the tools specified in the contact product standards. BS EN 3646-001:2015EN 3646-001:2015
44、(E) 8 6 Definition drawings and masses The general dimensions and the masses of receptacles, plugs and 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 B as well as in Table 1, Table 2
45、and Table 3. Dimensions and tolerances are in millimetres. Key 1 Shells 08 to 18: 5 min. Shells 20 to 24: 6 min. 2 Radius or chamfer 0,2 mm to 0,381 mm 3 730 to 1130 aPosition of point of electrical contact Figure 1 Receptacle BS EN 3646-001:2015EN 3646-001:2015 (E) 9 Table 1 Receptacle Mating dimen
46、sions Housing size A B C D E F H J K + 0,02 0,13 + 0,13 0,02 max. 0,18 0 0,4 + 0,15 0,05 08 12,02 9,19 7,24 8,38 8,00 8,50 8,10 0,56 0,20 3,55 14,30 1,98 10 14,99 12,44 10,21 17,27 12 19,05 15,41 13,11 21,82 14 22,23 18,59 16,28 24,99 16 25,40 21,76 19,46 28,14 18 28,58 24,43 21,72 31,32 20 31,75 27
47、,61 24,89 9,98 9,60 10,10 9,70 2,13 1,78 34,49 22 34,93 30,78 28,07 37,67 24 38,10 33,96 31,22 4,38 40,89 3,18 Table 2 Details A and B Contact size P Q R U max. 20 2,29 2,13 a 2,44 2,34 a1,50 1,24 3,68 2,84 2,69 3,00 2,89 16 3,66 3,50 3,81 3,71 2,06 1,80 3,94 12 5,18 5,03 5,33 5,23 2,84 2,59 aSee Ta
48、ble 3. Table 3 Reduced contact cavities Housing size and contact arrangements Reduced contact cavities 8 33 A, B, C 8 3A or 8 98 A, B, C 12 10 C, G 14 12 A, B, C, D, E, F, G, H 14 19 B, D, F, H, K, M 16 26 A, B, C, D, E, F, G, H, J, K, L, M, N, P, R 18 32 A, B, C, D, E, F, G, H, J, K, L, M, N, P, R,
49、 S, T 22 41 A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T, U, V, W, X, Y BS EN 3646-001:2015EN 3646-001:2015 (E) 10 6.2 Plug mating dimensions The mating dimensions of plugs are shown in Figure 2 and Figure 3 and in Table 4 and Table 5. Dimensions and tolerances are in millimetres. C Coupling ring bayonet groove detail Key 1 Three mated connectors holes (design optional) 2 Reference. Locking point of the coupling ring. 3 Three bayonet groves equally spaced
