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1、BRITISH STANDARD AEROSPACE SERIES BS EN 3155-012:2006 Electrical contacts used in elements of connection Part 012: Contacts, electrical, triaxial, size 8, male, type D, solder, class R Product standard The European Standard EN 3155-012:2006 has the status of a British Standard ICS 49.060 BS EN 3155-
2、012:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48972 8 National foreword This British Standard is the official English language version of EN 3155-012:2006. The UK participation in its preparation wa
3、s entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Subcommittee ACE/6/-/3, Aerospace Connectors, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references
4、The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Stand
5、ards Online. 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 does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the
6、responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front co
7、ver, the EN title page, pages 2 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments W - - - - - - - - - - - - 7 7- - 7- -7- - - - - 7- - - - - - - - *A * - - - - - - - - - -
8、 - - - - - - - - - - - - - - - - - - - - - - - - W W D - - w - - - - 2 Contents Page Foreword3 0 Introduction4 1 Scope 4 2 Normative references4 3Definitions 5 4 Required characteristics.5 4.1 Specific characteristics.5 4.2 Dimensions and mass.5 4.3 Material, surface treatment.6 4.3.1 Material .6 4.
9、3.2 Protective coating6 4.3.3 Dielectric.6 4.3.4 Heat-shrinkable tubing6 4.4 Permissible cables 6 4.5 Stripping of cables and wiring method .6 4.6 Tooling. 10 4.7 Tests. 11 4.8 Gauge. 14 5 Designation . 14 6 Marking 15 7 Conditioning 15 8 Technical specification 15 EN 3155-012:2006 3 Foreword This E
10、uropean Standard (EN 3155-012:2006) has been prepared by the AeroSpace and Defense Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has re- ceived the approval of the National Associat
11、ions and the Official Services 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 January 2007, and conflicting national standards sh
12、all be withdrawn at the latest by January 2007. 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. According to the CEN/CENELEC Internal
13、Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den- mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem- bourg, Malta, Nether
14、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer- land and the United Kingdom. EN 3155-012:2006 4 0 Introduction The contacts defined by this standard are derived from and interchangeable with those of MIL-C-39029/90A. They are also interchangeable with those of s
15、tandard EN 3155-010. 1 Scope This standard specifies the required characteristics and tests applicable to size 8, male triaxial electrical con- tacts 012, type D, solder, class R, used in elements of connection according to EN 3155-002. It shall be used together with EN 3155-001. The associated fema
16、le contacts are defined in EN 3155-011 and EN 3155-013. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer- ences, only the edition cited applies. For undated references, the latest edition of the referenced document (inc
17、luding any amendments) applies. EN 2591 (series), Aerospace series Elements of electrical and optical connection Test methods EN 3155-001, Aerospace series Electrical contacts used in elements of connection Part 001: Technical specification EN 3155-002, Aerospace series Electrical contacts used in e
18、lements of connection Part 002: List and utilization of contacts EN 3155-010, Aerospace series Electrical contacts used in elements of connection Part 010: Contacts, electrical, triaxial, size 08, male, type D, crimp, class R Product standard EN 3155-011, Aerospace series Electrical contacts used in
19、 elements of connection Part 011: Contacts, electrical, triaxial, size 8, female, type D, crimp, class R Product standard1) EN 3155-013, Aerospace series Electrical contacts used in elements of connection Part 013: Contacts, electrical, triaxial, size 8, female, type D, solder, class R Product stand
20、ard EN 3375-003, Aerospace series Cables, electrical, for signal data transmissions Part 003: Cables, bifilar, single braid Product standard EN 3375-004, Aerospace series Cables, electrical, for signal data transmissions Part 004: Cables, bifilar, double braid Product standard EN 3375-005, Aerospace
21、 series Cables, electrical, for signal data transmissions Part 005: Cables, bifilar, double braid, high immunity Product standard MIL-A-8243D, Anti-icing and deicing-defrosting fluids2) MIL-C-25769J, Cleaning compound, aircraft surface, alkaline water base2) MIL-C-39029/90A; Contact, electrical conn
22、ector, concentric twinax, pin, size 82) MIL-H-5606E, Hydraulic fluid, petroleum base, aircraft, missile and ordnance2) MIL-I-81969/14, Installing and removal tools, connector electrical contact, type III, class 2, composition B2) MIL-L-7808J, Lubricating oil, aircraft turbine engine, synthetic base,
23、 NATO code number 0-1482) MIL-L-7870A, Lubricating oil, general purpose, low temperature2) MIL-L-23699C, Lubricating oil, aircraft turbine engines, synthetic base2) SAE AS 1241A, Fire resistant phosphate ester hydraulic fluid for aircraft (March 83)3) 1) In preparation at the date of publication of
24、this standard. 2) Published by: Department of Defense (DOD), the Pentagon, Washington DC 20301 USA. 3) Published by Society of Automotive Engineers, Inc. (SAE), 400 Commonwealth Drive Warrendale, PA 15096-0001. EN 3155-012:2006 5 3 Definitions For the purposes of this standard, the definitions given
25、 in EN 3155-001 apply. 4 Required characteristics 4.1 Specific characteristics Type D contacts are contacts with screening feature, class R corresponds to an operating temperature range from 65 C to 150 C. They may be delivered in different conditions defined in Table 9 of EN 3155-001. 4.2 Dimension
26、s and mass See Figure 1 for dimensions. Dimensions and tolerances are given in millimetres. Contact mass: 3,50 g max. Key 1 Diameter of outside after wiring 2 Core/centre contact solder zone 3 Core/intermediate contact solder zone 4 Braid/outer contact solder zone 5 Point of contact with a flat ende
27、d gauge pin of diameter 2,870 0,005 6 End of contact centre pin 7 Diameter compatible with intermediate pin diameter 2,870 0,025 8 Permitted flat 0,2 max. Figure 1 EN 3155-012:2006 6 4.3 Material, surface treatment 4.3.1 Material Body: copper alloy 4.3.2 Protective coating Gold on appropriate underc
28、oat for copper alloy parts. Thickness not specified. 4.3.3 Dielectric ETFE Fluoropolymer 4.3.4 Heat-shrinkable tubing Radiation cross-linked polyvinylidene fluoride. 4.4 Permissible cables See Table 1. Table 1 Permissible cable group codes Cable reference A EN 3375-003 B EN 3375-004 C EN 3375-005 4.
29、5 Stripping of cables and wiring method See Figure 2 to Figure 17. Pre-position the screening feature ferrule on the cable Dimensions in millimetres Figure 2 Expose the braid by stripping the insulation Figure 3 EN 3155-012:2006 7 Pick up and roll back the braid. Pick up and roll back the first brai
30、d. Single braid EN 3375-003 Double braid EN 3375-004 Double braid Mu metal EN 3375-005 Figure 4 Figure 5 Figure 6 Cut the Mu metal strip Pick up and roll back the second braid Figure 7 Figure 8 Align the two wires of the pair Cut the filler Strip the conductors Flux (RMA flux) and tin plate the cond
31、uctors with Sn63 Pb37 Re-cut the conductors to the lengths indicated (white and coloured wires of the pair). Key 1 White colour Figure 9 Figure 10 EN 3155-012:2006 8 Insert the conductors in the contacts: white conductor: centre contact; colour conductor: intermediate contact; introduce the cable to
32、 butt into the contact (centre conductor); check the position of the colour conductor and the position of the sleeve as indicated. Key 1 Colour conductor 2 The sleeve covers the jacket of the colour conductor 3 0 to 1 max. 4 Cable/contact butt Figure 11 After having checked the alignment of the V of
33、 the cable clamp with the positioner; insert the contact/cable assembly in the positioner. See Figure 12. Turn on the heating tool for at least 30 s before set-up. Position the contact in the heating zone using the holding fixture. Key 1 Reflector 2 Positioner 3 Clamp 4 Holding tool Figure 12 Heat u
34、ntil the two solder preforms have completely melted. Leave the assembly to cool for a minimum of 15 s before withdrawing the contact from the fixture. EN 3155-012:2006 9 Checking the contact set-up. See Figure 13. The contact can only be correctly set-up if all of the following conditions are visual
35、ly observed: the two solder preforms have disappeared; respecting the overlap of the colour conductor. Key 1 Overlap 2 Melted solder rings NOTE A slight browning of the kynar sleeve is acceptable given that the performance of the product used is not affected. Figure 13 Bring back the braid(s) over t
36、he body of the contact. See Figure 14. Cut the braid according to the dimension indicated. Figure 14 Introduce the screening feature ferrule to butt into the contact shoulder. See Figure 15. Figure 15 EN 3155-012:2006 10 Heat the screening feature ferrule until solder has completely melted through t
37、he holes. See Figure 16. Hold the ferrule with a tool while heating. Leave the assembly to cool for a minimum of 15 s before withdraw- ing the contact from the tool. Figure 16 Checking the ferrule set-up The braid shall be correctly wetted by the solder and shall be visible through at least 2 holes
38、in the screening feature ferrule. Figure 17 4.6 Tooling Conform to MIL-I-81969/14 Insertion: not necessary Extraction: M-81969/14-06 Contact termination: the hot air generator is of a minimum usable capacity of 800 W and the temperature in the heating zone shall be (420 20) C. The drawing of the too
39、l is given for information purposes: the positioner has an interface for the male contact on side P and the female contact on side S (see Figure 12); the function of the cable clamp is to hold the parts in place during the heating and cooling phases. EN 3155-012:2006 11 4.7 Tests See Table 2. Table
40、2 Applicable EN 2591- Test Not applicable According to EN 3155-001 Remarks 101 Visual examination X 102 Examination of dimensions and mass X 201 Contact resistance low level X Cable as per Table 1 Probe distance: (150 2) mm Test temperature: ambient Maximum contact resistance m Contact Initial After
41、 tests Centre Intermediate 55 66 Outer Not applicable 202 Contact resistance at rated current X Cable as per Table 1 Probe distance: (150 2) mm Maximum contact resistance m (25 3 0) C (150 3 0) C Contact Initial After tests After tests Rated current A Centre Intermediate 55 66 94 1 Outer 6,3 7,5 10,
42、7 12 204 Discontinuity of contacts in the microsecond range X Method B Duration of discon- tinuity: 5 G At 150 C 2 G 207 Voltage proof test X Method C Proof test voltage at sea level: 1 000 V r.m.s. between centre contact and in- termediate contact and 500 V r.m.s. between intermediate contact and o
43、uter contact. Proof test voltage at altitude: 125 V r.m.s. at 1,1 kPa pressure (33 000 m). Leakage current: 2 mA 210 Electrical overload X EN 3155-012:2006 12 Table 2 (continued) Applicable EN 2591- Test Not applicable According to EN 3155-001 Remarks 211 Capacity measurement X 212 Transfer impedance X Under investigation 213 Shielding effectiveness from 100 MHz to 1 GHz X 301 Endurance at temperature X Method B Duration: 1 000 h 305 Rapid change of temperature X TA = ( 65 2