1、STD-AECMA PREN 3708-002-ENGL L77b m LOL23Ll 0032208 Ob0 m Edition approved for publication 1996-1 1-29 AECMA STANDARD NORME AECMA AECMA NORM C2 Chairman Comments should be sent within six months after the date of publication to Gulledelle 94 AECMA Mr Pezzetta 8-1 200 BRUXELLES prEN 3708-002 Edition
2、P 2 November 1996 ICs : 49.060 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledeiie 94 - B-1200 BRUXELLES - Tel. (32) 2 775 81 10 - Fax. (32) 2 775 81 11 Supersedes edition P 1 September 1995 Descriptors : Aircraft industry, connecting equipment, terminal strips, specific
3、ations, performance evaluation, electrical properties ENGLISH VERSION Aerospace series Modular interconnection systems Terminal junction systems Part 002 : Performance specification Srie arospatiale Systmes dinterconnexions modulaires Barrettes de raccordement Partie 002 : Spcification de performanc
4、es Luft- und Raumfahrt Verteilersystem in modularer Bauweise Verteilermodule Teil 002 : Leistungsdaten This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Mem
5、bers. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or function
6、ally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for for
7、mal vote. Page 3 prEN 3708-002 : 1996 22 1 Scope min. max. 0,72 1,37 This standard specifies the general characteristics of terminal junction systems for modular interconnection systems in accordance with EN 3708-001, including versions with sealed or unsealed modules, the interconnection diagrams o
8、f which may be different and defined in the product standards. 20 16 12 2 Normative references 0,85 2,lO 1,20 2,62 1,90 4,Ol This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the tex
9、t and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applie
10、s. EN 2083 EN 2591 EN 2591-209 Copper and copper alloy conductors for electrical cables - Aerospace series 1) Aerospace series - Elements of electrical and optical connection - Test methods - General Aerospace series - Elements of electrical and optical connection - Test methods - Part 209 : Current
11、 temperature derating Aerospace series - Electrical contacts used in elements of connection - Part O16 : Contacts, electrical, male 016, type A, crimp, class S - Product standard 2) Aerospace series - Modular interconnection systems - Terminal junction systems - Part O01 : Technical specification 3)
12、 EN 4008-003 Aerospace series - Elements of electrical and optical connection - General accessories and tooling - Part 003 : Filler plugs for contacts used in elements of electrical connection 2) EN 31 55-01 6 EN 3708-001 3 Def ni tions For the purposes of this standard, the following definitions ap
13、ply : See EN 2591 and EN 3708-001. 4 Operating conditions 4. i Authorized cables The performance of modular interconnection systems shall be guaranteed on cables the dimensions of which are given in table 1, using the cabling accessories and tools given in the product standards. Table 1 I External d
14、iameter of cables I Contact size I mm 1) Published as AECMA Standard at the date of publication of this standard 2) In preparation at the date of publication of this standard 3) Published as AECMA Prestandard at the date of publication of this standard Previous page is blank Page 4 prEN 3708-002 : 1
15、996 Contact size 22 20 16 12 4.2 Required characteristics 4.2.1 Electrical requirements - Insulation resistance at ambient temperature : 5 O00 MO - Voltage proof test : 1 500 V r.m.s., at sea level, 50 Hz - Nominal allowable intensity according to contacts : the nominal allowable intensity at extrem
16、e temperature in contacts (175 OC) shall depend on their size and the cable used according to table 2. Table 2 Section mm2 Conductor size Nominal intensity min. max. Code 1) AWG 2) A Oll 5 0,38 001, 002,004 26, 24, 22 5 0,2 1 0,93 002, 004, 006, O10 24, 22, 20, 18 7,5 0,60 1,34 006, 010,012 20, 18, 16 13 1,91 3,18 020,030 14, 12 23 Warming due to the passing current shall not cause the maximum temperature to be exceeded. See EN 2591-209. 4.2.2 Climatic category - 55 OC to 175 OC 5 Contacts See EN 3155-016. 6 Filler plugs See EN 4008-003. 7 Technical specification See EN 3708-001.
