1、ASD STANDARD NORME ASD ASD NORM prEN 3155-001 Edition P 4 July 2006 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: 49.060 Supersedes edition P 3 May 2000 De
2、scriptors: ENGLISH VERSION Aerospace series Electrical contacts used in elements of connection Part 001: Technical specification Srie arospatiale Contacts lectriques utiliss dans les organes de connexion Partie 001 : Spcification technique Luft- und Raumfahrt Elektrische Kontakte zur Verwendung in V
3、erbindungselementen 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 h
4、as 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
5、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 implemen
6、t 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 31 July 2006 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyrig
7、ht 2006 by ASD-STAN Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:20062 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 T
8、erms and definitions .4 4 Conditions of use.5 5 Design and description .6 6 Dimensions and mass 10 7 Operation. 10 8 Tests. 10 9 Quality assurance. 19 10 Designation and marking. 29 11 Delivery condition. 30 12 Packaging 30 13 Storage. 30 Annex A (normative) Symbols of contact sizes in contact arran
9、gement drawings. 31 Foreword This standard was reviewed by the Domain Technical 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.
10、 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:20063 1 Scope This standard specifies: the electrical, mechanical, environmental and di
11、mensional characteristics of electrical contacts used in elements of connection, including coaxial, triaxial and quadrax contacts; the conditions for qualification, acceptance testing and quality assurance; the test programmes and groups. It is applicable to removable crimp contacts, wrap contacts,
12、solder contacts used in connectors or in other elements of electrical connection. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the
13、referenced document (including any amendments) applies. ISO 1302, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation. ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL)
14、 for lot-by-lot inspection. ISO 4524-1, Metallic coatings Test methods for electrodeposited gold and gold alloy coatings Part 1: Determination of coating thickness. ISO 4524-5, Metallic coatings Test methods for electrodeposited gold and gold alloy coatings Part 5: Adhesion tests. ISO 8843, Aircraft
15、 Crimp-removable contacts for electrical connectors Identification system. IEC 352-1, Solderless connections Part 1: Wrapped connections General requirements, test methods and practical guidance.1)EN 2242, Aerospace series Control of tools used for crimping of electrical cables with conductors defin
16、ed by EN 2083 and EN 2346. 2)EN 2591-100*, Aerospace series Elements of electrical and optical connection Test methods Part 100: General. EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts. *All parts quoted in Table 2. 1) Published by Internati
17、onal Electrotechnical Commission (IEC), 3 rue de Varemb, 1211 Geneva 20, Switzerland. 2) Published as ASD Prestandard at the date of publication of this standard. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo repro
18、duction or networking permitted without license from IHS-,-,-prEN 3155-001:20064 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: See EN 2591-100. 3.1 point of electrical contact position of point of application of the force which provides contact
19、 pressure 3.2 contact active area part of the contact which allows current to pass between the contact and another element Coupling face 3.3 coaxial contact male or female assembly of two contacts arranged coaxially enabling theconnection of coaxial, shielded or bifilar cables See Figure 1. NOTE 1 M
20、ale coaxial contact where the outer contact is male;the central contact(s) may be male or female. NOTE 2 Female coaxial contact where the outer contact isfemale; the central contact(s) may be male or female. Key 1 Centre contact 2 Outer contact Figure 1 3.4 triaxial contacts male or female assembly
21、of three contacts arranged coaxially, enabling theconnection of shielded triaxial or bifilar cables See Figure 2. NOTE 1 Male triaxial contact where the outer contact is male;the central contact(s) may be male or female. NOTE 2 Female triaxial contact where the outer contact isfemale; the central co
22、ntact(s) may be male or female. Key 1 Centre contact 2 Intermediate contact 3 Outer contact Figure 2 3.5 bifilar contact (twinax) assembly of three contacts, two of which are parallel, thethird being peripheral to these, enabling the connection ofshielded bifilar cables See Figure 3. Key 1 Twin para
23、llel contacts 2 Outer contact Figure 3 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:2006 5 3.6 quadrax contact assembly of five conta
24、cts, four of which are parallel, the fifthbeing peripheral to these, enabling the connection ofshielded quadrax cables See Figure 4. Key 1 Four parallel contacts 2 Outer contact Figure 4 4 Conditions of use 4.1 Types of contact The contact specified shall be one of the following types: Type A: conta
25、ct for general application; Type C: contact for thermocouple; Type D: contact with screening feature (including the coaxial contacts, triaxial contacts and bifilar contacts). These have no characteristic impedance and are therefore not recommended for use at high frequency. Type E: contact with scre
26、ening feature, including coaxial, triaxial, bifilar and quadrax contacts. These have matched impedance. NOTE Non-removable contacts are defined in the connector specifications. 4.2 Temperature classes The contacts specified shall be from one of the classes specified below: class P: maximum operating
27、 temperature 125 C; class R: maximum operating temperature 150 C; class S: maximum operating temperature 200 C; class T: maximum operating temperature 260 C; class U: maximum operating temperature 350 C. The minimum operating temperature shall be 65 C, unless otherwise specified in the product stand
28、ard. 4.3 Permissible wires and cables 4.3.1 The conductors which are acceptable in the crimping barrels and the coding by means of colour bands are specified in ISO 8843. The contact detail specification shall state the acceptable conductors for each size of contact. Copyright Association Europeene
29、des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:20066 4.3.2 The type of cable, coaxial, triaxial, etc. shall be specified in the product standard. 5 Design and descript
30、ion 5.1 Design This standard covers male and female contacts of all types and technologies: cylindrical or rectangular entry contacts, flat contacts of the blade type, etc., stamped, formed or machined contacts. 5.1.1 Mating end of female contact, cylindrical contacts Unless otherwise stated in the
31、product standard, the mating end of female contacts from size 12 to 24, shall be of the restricted entry type and shall not permit the introduction of a gauge which has a diameter 0,13 mm greater than the maximum diameter of the male contact. 5.1.2 Mating end of male contacts, cylindrical contacts U
32、nless otherwise stated in the product standard, the mating end of the male contacts shall be approximately spherical. A flat is permitted at the end; its dimensions are given in Table 1. Table 1 Contact diameter Diameter of flat at the end Contact diameter Diameter of flat at the end Contact size mm
33、 mm Contact size mm mm 28 a 0,394 0,368 0,19 max. 10 3,20 3,15 2,08 1,57 26 a0,521 0,495 0,25 max. 8 3,63 3,58 2,18 1,68 24 a0,648 0,622 0,30 max. 6 4,55 4,50 2,44 1,93 22 0,775 0,750 0,35 max. 4 5,74 5,69 2,79 2,29 20 1,04 0,99 0,51 0,13 2 7,21 7,16 4,27 3,76 16 1,61 1,56 0,81 0,43 0 9,09 9,04 6,15
34、 5,64 14 2,01 1,96 0,99 0,61 2/0 10,34 10,29 7,39 6,88 12 2,41 2,36 1,57 1,19 4/0 12,72 12,67 9,80 9,27 aInner contact of type D or type E. 5.1.3 Solder buckets The buckets shall be designed so that during soft soldering operations, the liquid solder cannot run towards the end of the contact. Copyri
35、ght Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:2006 7 5.1.4 Crimp barrels Barrels shall be designed to accept the range of permissible conduc
36、tors according to ISO 8843. The use of a reducing sleeve is not recommended; this remains the responsibility of the user and shall be subject to acceptance by the relevant authorities. 5.1.5 Terminations for wrapped connections The terminations for wrapped connections shall comply with IEC 352-1. 5.
37、1.6 Surface roughness (see ISO 1302) The surface roughness after coating in the male contact zone shall not exceed Ra= 0,8 m (or N6); in the other zones, it shall not exceed Ra= 1,6 m (or N7). 5.1.7 Engagement sequence The engagement sequence for coaxial and quadrax contacts shall be outer contact,
38、then inner contacts. Unless otherwise specified in the product standard, the engagement sequence for triaxial contacts shall be: outer contact, intermediate contact, centre contact. 5.2 Materials The materials used in the manufacture of contacts shall be consistent with those indicated in the defini
39、tion document. When dissimilar metals are in close contact, the electromotive force of the galvanic couple shall not exceed 0,25 V. 5.3 Metallic protective plating The protective coating may be either uniform over the entire surface of the contact, or it may be selective. The protection shall be thi
40、cker in the contact active areas. The minimum thickness of protection for active areas may or may not be specified in the product standard. The entire contact shall have an appropriate undercoat (silver undercoat is prohibited), with the exception of fittings or retaining features such as springs or
41、 spring clips which may be made of a corrosion resisting material. 5.3.1 Uniform protection The entire surface of the contacts shall be protected in accordance with the requirements of each product standard. 5.3.2 Selective protection If required by the product standard, selective plating shall be a
42、pplied as shown in Figures 6 to 15, depending on the particular case. Protection shall be complete in contact active areas X and Y. In the other zones, the thickness of the protections is not generally specified. Outside contact active areas X and Y, a change in colour of the gold plating is not a r
43、eason for rejection. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:20068 Key 1 Male contact of maximum diameter 2 Contact active area
44、X (internal diameter) 3 Clip 4 Contact active area X 5 Point of electrical contact Figure 5 Female contact with integral contact pressure element Key 1 Contact active area X Figure 6 Female contact with separate pressure elements Key 1 Contact active area Y Figure 7 Male contact Copyright Associatio
45、n Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:20069 Key 1 Point of electrical contact 2 Contact active area X Figure 8 Tuning fork contact Key 1 Contact a
46、ctive area Y Figure 9 Blade contact Key 1 Contact active area Y Figure 10 Male contact, coaxial Key 1 Contact active area X Figure 11 Female contact, coaxial Key 1 Contact active area Y Figure 12 Male contact, triaxial Key 1 Contact active area X Figure 13 Female contact, triaxial Copyright Associat
47、ion Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3155-001:200610 Key 1 Contact active area Y Figure 14 Male contact, quadrax Key 1 Contact active area X Figure 15 F
48、emale contact, quadrax 6 Dimensions and mass The dimensions of the contacts and their mass are defined in the product standard. 7 Operation The tools for connecting and installing the contacts are defined in the product standard. 8 Tests See Table 2. All the tests are carried out without elements of connection, with the exception of tests EN 2591-402, EN 2591-403, EN 2591-406 and EN 2591-415. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMA Not for ResaleNo reproduction
