1、BRITISH STANDARDBS EN 3708-001:2006Aerospace series Modular interconnection systems Terminal junction systems Part 001: Technical specificationThe European Standard EN 3708-001:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g
2、53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3708-001:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 2006ISBN 0 580 49216 8Nat
3、ional forewordThis British Standard was published by BSI. It is the UK implementation of EN 3708-001:2006. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Subcommittee ACE/6/-/3, Aerospace Connectors.A li
4、st of organizations represented on ACE/6/-/3 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obl
5、igations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3708-001May 2006ICS 49.060English VersionAerospace series - Modular interconnection systems - Terminaljunction systems - Part 001: Technical specificationSrie arospatiale - Systmes din
6、terconnexionsmodulaires - Barrettes de raccordement - Partie 001 :Spcification techniqueLuft- und Raumfahrt - Verteilersystem in modularerBauweise - Verteilermodule - Teil 001: TechnischeLieferbedingungenThis European Standard was approved by CEN on 9 March 2006.CEN members are bound to comply with
7、the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat o
8、r to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversion
9、s.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Sw
10、itzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. E
11、N 3708-001:2006: E2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.5 4 Description 6 4.1 General 6 4.2 Products 6 4.3 Contacts.7 5 Design7 6 Definition drawings and masses7 7 Tests 7 7.1 General 7 7.2 Specific tests.16 8 Quality assurance .17 8.1 Qualification
12、17 8.2 Conditions for initial qualification .18 8.3 Maintenance of qualification22 8.4 Conditions for acceptance and inspection .22 8.5 Quality control.22 9 Identification and marking23 10 Packaging23 11 Storage 23 EN 3708-001:20063 Foreword This European Standard (EN 3708-001:2006) has been prepare
13、d by the European Association of Aerospace Manufacturers - Standardization (AECMA-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 Services of the member countries of A
14、ECMA, 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 November 2006, and conflicting national standards shall be withdrawn at the latest by November 2006. Attenti
15、on 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of th
16、e following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sloveni
17、a, Spain, Sweden, Switzerland and the United Kingdom. EN 3708-001:20064 1 Scope This standard specifies the general characteristics of terminal junction systems for modular interconnection systems as well as test conditions, test programme and groups for quality assurance. It applies to products spe
18、cially adapted to provide connections within a very reduced space for variable extendable, divisible, transformable and interchangeable combinations of equipment within a temperature range from 55 C to 175 C, and for altitudes up to 21 000 m for sealed modules or up to 13 700 m for unsealed modules.
19、 The conditions of use shall be in accordance with EN 2282. It also applies to interconnections incorporating components. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undate
20、d 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 aircraft electrical supp
21、lies. EN 2591-100*, Aerospace series Elements of electrical and optical connection Test methods Part 100: General. EN 3155-016, Aerospace series Electrical contacts used in elements of connection Part 016: Contacts, electrical, male, type A, crimp, class S Product standard.1)EN 3708-002, Aerospace s
22、eries Modular interconnection systems Terminal junction systems Part 002: Performance specification. EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts. MIL-PRF-7870C, Lubricating oil, general purpose, low temperature. 2)MIL-PRF-23699F, Lubricat
23、ing oil, aircraft turbine engine, synthetic base, nato code number O-156.2)MIL-PRF-87937D, Cleaning compound, aerospace equipment. 2)MIL-HDBK-454A, General guidelines for electronic equipment (Guideline 4: Fungus - Inert materials). 2)AMS 1424, Deicing/anti-icing fluid, aircraft SAE Type I.3)AS 1241
24、C, Fire resistant phosphate ester hydraulic fluid for aircraft. 3) *Including all its parts quoted. 1) Published as AECMA Prestandard at the date of publication of this standard. 2) Published by: Department of Defense (DOD), the Pentagon, Washington, D.C. 20301 USA. 3) Published by: Society of Autom
25、otive Engineers, Inc. (SAE) 400 Commonwealth Drive, Warrendale, PA 15096-001 USA. EN 3708-001:20065 3 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 3.1 modular interconnection system an arrangement permitting the interconnection of contacts accor
26、ding to a predetermined design NOTE 1 The female contacts are fitted in the module or extension piece and the male contacts are removable and crimped on. NOTE 2 Climatic category and assembly are defined in EN 3708-002. 3.2 removable module terminal junction system assembly of associated removable m
27、odules with their components, which are also removable, assembled on a frame 3.3 frame generally metal parts of a specified shape constituting both the assembly system for removable modules and removable components and the mounting system for the whole 3.4 removable module connector device composed
28、of one or more groups of defined contacts, disposed inside an insulating box and connected together according to a predefined design NOTE 1 It can readily be positioned, repositioned or removed from the frame for ease of connection or modification of a terminal junction system. NOTE 2 A removable mo
29、dule may be either of the feedback or feed-through type. 3.4.1 removable feedback module module on which access to the contacts is on one face of the module only 3.4.2 removable feed-through module module on which access to the contacts is on two opposite faces of the module 3.5 removable components
30、 accessories generally associated with the module, such as end plates, module clamps, etc. 3.6 group of contacts assembly of several contacts electrically interconnected 3.7 interconnection diagram electrical arrangement of the group or groups of contacts within a modular interconnection system 3.8
31、module clamp appropriate device for mounting an assembly of modules on a frame EN 3708-001:20066 3.9 insulator removable wall of insulating material for insertion between two modules to provide supplementary insulation between them 3.10 mounting carrier device suitable for mounting one, two or three
32、 modules 3.11 connector - extension piece device with one or more quick-release feed-through connections inside an insulating sleeve 3.12 individual connector terminals individual quick-release terminals generally used for earthing 3.13 earth module module with a group of electrically interconnected
33、 contacts and mounted with a bolt or a carrier and earthed by a metal plate 3.14 modules for or with components removable feedback or feed-through modules, the contacts of which are electrically connected to one or more electrical components in different combinations 3.15 connectors - extension piec
34、es with components devices with the same function as standard extension piece connectors except that components such as resistors, diodes, or fuses are incorporated in them See also EN 2591-100. 4 Description 4.1 General A modular interconnection system comprises one or more insulating boxes fitted
35、with contacts, which may or may not be mounted in a support or frame in conformity with its product standard. Its cavities take crimped contacts as defined in EN 3155-016 and, on request, blanking devices. 4.2 Products The products covered by this standard shall include: a) removable module terminal
36、 junction systems mounted on various supports or frames, in sealed and unsealed versions: 1) feedback type; 2) feed-through type. b) frames with accessories for removable modules; c) mounting carriers for modules; EN 3708-001:20067 d) connectors - extension pieces; e) individual terminals; f) earth
37、modules; g) modules for or with components; h) connectors - extension pieces with components. 4.3 Contacts See EN 3155-016. Contacts exist in four sizes: 22, 20, 16, 12. Unsealed modules do not include contacts of sizes 16 and 12. 5 Design Materials not specified and not specially described shall be
38、 the lightest possible for the required application. When dissimilar metals are in close contact, adequate protection against corrosion shall be used for the electromotive force of the cell which shall not exceed 0,25 V. Insertion and extraction of contacts shall be through sockets located on the ac
39、cess surface or surfaces. If tools are necessary for insertion and extraction of contacts, their use shall not impair the product characteristics. 6 Definition drawings and masses The general dimensions and masses of the different components and the interconnection diagrams constituting a modular in
40、terconnection system are defined in the product standards. 7 Tests 7.1 General See Table 1. EN 3708-001:20068 Table 1 EN 2591- Designation of the test Details 101 Visual examination Initial examination: examination of components (modules, extension pieces, etc.), detached parts (contacts, mounting c
41、omponents, supports, etc.) Details to be examined: - identification; - appearance; - marking; - surface finish. 102 Examination of dimensions and mass See product standard. 201 Contact resistance - low level The contact resistance shall not exceed the value shown in the table below. The values recor
42、ded shall be divided by two to give the contact resistance of one contact. Contact size Contact resistance m 22 5 20 4 16 3 12 2 202 Contact resistance at rated current See Figures 1 and 2. The contact resistance shall not exceed the value shown in the table below. The values recorded shall be divid
43、ed by two to give the contact resistance of one contact. Contact size Contact resistance m Rated current A 22 5 5 20 4 7,5 16 3 13 12 2 23 continued EN 3708-001:20069 Table 1 (continued) EN 2591- Designation of the test Details 202 (continued) Key 1 Maximum section 2 Feedback module Figure 1 Resista
44、nce test for feedback module Key 1 Feed-through module Figure 2 Resistance test for feed-through module continued EN 3708-001:200610 Table 1 (continued) EN 2591- Designation of the test Details 203 Electrical continuity at microvolt level Not applicable 204 Discontinuity of contacts in the microseco
45、nd range Duration of micro-discontinuity: 1 s Method B Test time: throughout the duration of tests EN 2591-402 and EN 2591-403 205 Housing (shell) electrical continuity Not applicable 206 Measurement of insulation resistance Method C Fully wired specimens. Insulation resistance at ambient temperatur
46、e: 5 000 M min. During test EN 2591-303 and after test EN 2591-304: 100 M min. During test EN 2591-301 and after tests EN 2591-311, EN 2591-314 and EN 2591-315: 1 000 M min. 207 Voltage proof test Method C Test voltage after tests EN 2591-314 or EN 2591-311: - 1 500 V r.m.s. frequency 50 Hz, normal
47、pressure; - 350 V r.m.s. frequency 50 Hz voltage at 14,7 kPa for unsealed modules; - 350 V r.m.s. frequency 50 Hz voltage at 4,67 kPa for sealed modules. The test voltage shall be applied between two adjacent insulated contacts. The maximum leakage current shall not exceed 2 mA. 208 Temperature rise
48、 due to rated current Not applicable 209 Current temperature derating See EN 3708-002, Electrical requirements. 210 Electrical overload This test shall be performed on a contact group wiring the inlet and the outlet on the farthest contacts. The other contact groups shall be supplied with nominal cu
49、rrent. continued EN 3708-001:200611 Table 1 (continued) EN 2591- Designation of the test Details 210 (continued) Contact size Current A Duration s 2210,5 15 75 3 600 22 0,6 20 14 20 100 3 600 22 0,6 16 21 30 150 3 600 22 0,6 12 36 50 250 3 600 22 1,3 Interconnection diagrams - Contact size 22 - Module code A Contact size Diagram number Supply points electric overload Temperature measuring pointA01 KL M A02 DU L A03 AY L A04 EX M A05 DY N 22A06 HP L Interconnection diagrams - Contact size 20 - Module code B Contact size
