1、AECMA STANDARD NORME AECMA AECMA NORM prEN 3155-025 Edition P 1 March 2005 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8110 - Fax. + 32 2 775 8111 - www.aecma-stan.orgICS: 49.060 Descriptors: ENGLISH VERSION Aerosp
2、ace series Electrical contacts used in elements of connection Part 025: Contacts, electrical, triaxial, size 8, female, type D, crimp, class S Product standard Srie arospatiale Contacts lectriques utiliss dans les organes de connexion Partie 025 : Contacts lectriques, triaxiaux, taille 8, femelles,
3、type D, sertir, classe S Norme de produit Luft- und Raumfahrt Elektrische Kontakte zur Verwendung in Verbindungselementen Teil 025: Elektrische Buchsenkontakte, triaxial, Gre 8, Typ D, crimpbar, Klasse S Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AE
4、CMA-STAN (The European Association of Aerospace Industries - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the t
5、echnical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN, it will be submitted as a draft European Standard (prEN) to CEN (Eu
6、ropean Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement 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. Edit
7、ion approved for publication 31 March 2005 Comments should be sent within six months after the date of publication to AECMA-STAN Electrical Domain Copyright 2005 by AECMA-STAN Page 2 prEN 3155-025:2005Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANs Electrical D
8、omain. After inquiries and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA-STANs General Process Manual, this standard has received approval for Publication. Contents Page Introduction 3 1 Scope 3 2 Normative references. 3 3 Terms and definitions 4 4 Required characteri
9、stics 4 5 Designation 11 6 Marking. 11 7 Technical specification 11 Page 3 prEN 3155-025:2005Introduction The contacts defined by this standard are derived from, and are interchangeable with, contacts conforming to MIL-C-39029/91A. They are intermateable with contacts conforming to EN 3155-012 and M
10、IL-C-39029/90A. 1 Scope This standard specifies the required characteristics and tests applicable to female electrical contacts, type D, crimp, class S, 65 C to 200 C, size 8 used in elements of connection according to EN 3155-001. It shall be used together with EN 3155-001. The associated male cont
11、acts are defined in EN 3155-024. 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 referenced document (including any amendments) ap
12、plies. EN 2591*, Aerospace series Elements of electrical and optical connection Test Methods. 1)EN 3155-001, Aerospace series Electrical contacts used in elements of connection Part 001: Technical specification. 1)EN 3155-012, Aerospace series Electrical contacts used in elements of connection Part
13、012: Contacts, electrical, triaxial, size 8, male, type D, solder, class R Product standard.1)EN 3155-024, Aerospace series Electrical contacts used in elements of connection Part 024: Contacts, electrical, triaxial, size 8, male , type D, crimp, class S Product standard. 1)EN 3375-003, Aerospace se
14、ries Electrical cables for signal data transmissions Operating temperature max. 150/200/260 C Part 003: Single braid Product standard. 2)EN 3375-004, Aerospace series Electrical cables for signal data transmissions Operating temperature max. 150/200/260 C Part 004: Double braid Product standard. 2)E
15、N 3375-005, Aerospace series Electrical cables for signal data transmissions Operating temperature max. 150/200/260 C Part 005: Double braid + metallic layer Product standard. 2)EN 4008-003, Aerospace Series Elements of Electrical and Optical Connection Crimping Tools and Associated Accessories Part
16、 003: Positioner for Crimping Tool M22520/2-01.2)EN 4008-004, Aerospace Series Elements of Electrical and Optical Connection Crimping Tools and Associated Accessories Part 004: Die for Crimping Tool M22520/5-01.2)EN 4530-002 Aerospace series Sealing sleeves used in elements of connection Part 002: L
17、ist and utilization of sealing sleeves.1) * All parts quoted in this standard. 1) Published as AECMA Prestandard at the date of publication of this standard. 2) In preparation at date of this publication. Page 4 prEN 3155-025:2005MIL-C-39029, Contacts, electrical connector, general specification for
18、. 3)MIL-I-81969/14, Installing and removal tools, connector electrical contact, type III, class 2, composition B. 3)MIL-PRF-5606H, Hydraulic fluid, petroleum base; aircraft, missile and ordnance. 3)MIL-PRF-7808L, Lubricating oil, aircraft turbine engine, synthetic base, nato code number O-148. 3)MIL
19、-PRF-7870C, Lubricating oil: general purpose, low temperature. 3)MIL-PRF-23699F, Lubricating oil, aircraft turbine engine, synthetic base, nato code number O-156. 3)MIL-PRF-87937D, Cleaning compound aerospace equipment. 3)AS 1241, Fire resistant phosphate ester hydraulic fluid for aircraft. 4)AMS 14
20、24, Deicing/anti-icing fluid, aircraft - sae type I. 4)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3155-001 apply. 4 Required characteristics 4.1 Dimensions and mass Dimensions are given in millimetres after surface treatment: See Figures 1 and 2
21、and Table 1. Mass: 3,3 g max. 4.2 Materials, surface treatment Materials: Conductive copper alloy Dielectric: PEEK or equivalent Surface treatment: Gold on appropriate undercoat (selective protective finish permitted). 3) Published by: Department of Defense (DOD), The Pentagon, Washington D.C. 20301
22、, USA 4) Published by: Society of Automotive Engineering (SAE), 400 Commonwealth Drive, Warrendale, PA 15096, USA Page 5 prEN 3155-025:2005NOTES 1 Diameter shall not exceed 7,01 over recovered heat-shrink sleeve 2 Point of contact with flat pin 0,61 0,013 3 Mates with 5,54 0,005 pin contact 4 Point
23、of contact with flat pin 5,54 0,013 5 Centre contact mates with 0,61 0,013 pin contact 6 Contact entry shall be protected 7 To end of intermediate contact NOTE When mated with contacts conforming to EN 3155-025 the outer contact shall always mate prior to the centre and intermediate contacts. The ma
24、ting sequence between centre and intermediate contacts is not guaranteed and therefore does not conform to EN 3155-001 paragraph 5.1.7. Figure 1 Page 6 prEN 3155-025:2005Figure 2 Cable ferrule Table 1 Size A Cable style A 3,40/3,51 EN 3375-003 B 3,91/4,01 EN 3375-004C 4,14/4,24 EN 3375-005 4.3 Permi
25、ssible cables 4.3.1 Cable types See Table 2. Table 2 Cable type Specification Single braided cable EN 3375-003 Double braided cable EN 3375-004 High immunity cable EN 3375-005 4.3.2 Cable stripping instruction See Figure 3 and Table 3. A5,84 5,59 5,26 5,16 Page 7 prEN 3155-025:2005Key 1 Braid Figure
26、 3 Table 3 Cable stripping Dimensions in millimetres Cable Outer jacket 0,5 Inner conductors 0,2 EN 3375-003 8,0 5,0 EN 3375-004 8,0 5,0 EN 3375-005 8,0 5,0 NOTE Excess cable braid should be trimmed off prior to crimping. No braid should be visible when terminated. 4.4 Tooling See Table 4. Table 4 C
27、entre contact Intermediate contact Outer crimp sleeveBasic crimp tool M22520/2-01 M22520/5-01 Contact positioner EN 4008-004 N/A N/A Die N/A EN 4008-003Contact installation/Removal tool MIL-I-81969/14-06 (8,0 0,500) mm (5,0 0,200) mm1 Page 8 prEN 3155-025:20054.5 Tests See Table 5. Table 5 Applicabl
28、e 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 Maximum contact resistance m Contact Initial After tests Centre 55 66 Intermediate 55 66 Outer Not applicable 202 Contact resistance
29、at rated current X Maximum contact resistance m Room temperature Max. temperature Contact Test current A Initial After cond. 150 C Centre 1 55 66 94 Intermediate 1 55 66 94 Outer 12 6 75 128 204 Discontinuity of contacts in the microsecond range X Method B: Interruption 100 ns during tests EN 2591-4
30、02 and EN 2591-403. 206 Measurement of insulation resistance X Method C: Ambient temp. 5 G Maximum temp. 2 G 207 Voltage proof test X Contact Altitude Test voltage Centre/Int. Sea level 1 000 V Inter/outer Sea level 500 V Withstanding voltage at altitude 125 V (rms.) at 4,7 kPa (21 000 m) 210 Electr
31、ical overload X 211 Capacitance X 212 Surface transfer impedance X 5 m/ 0,1 100 MHz continued Page 9 prEN 3155-025:2005Table 5 (concluded) Applicable EN 2591- Test Not applicable According to EN 3155-001 Remarks 213 Shielding effectiveness from 100 MHz to 1 GHz X 301 Endurance at temperature X Metho
32、d B: Duration 1 000 hours. Insulation resistance test 305 Rapid change of temperature X Contacts wired and engaged: TA= 200 C TB= 65 C 306 Mould growth X 307 Salt mist X 315 Fluid resistance X See Table 6. 402 Shock X Method A: Severity 300. 403 Sinusoidal and random vibration X Method B: Figure 3,
33、Level J. 406 Mechanical endurance X 500 cycles 415 Test probe damage (female contact) X 416 Contact bending strength X 417 Tensile strength (crimped connection) X Centre 35 N Intermediate 35 N Outer 100 N 418 Gauge insertion/extraction forces (female contacts) X Gauge: As defined in Figure 4 and Tab
34、le 7. Insertion (max.) Extraction (min.) Contact Initial After Cond. Initial After Cond. Intermediate 5,00 N 6,1 N 0,14 N 0,11 N 502 Restricted entry X 503 Contact deformation after crimping X Centre contact only 507 Plating porosity X 508 Measurement of thickness of coating on contacts X The measur
35、ed thickness to be recorded. 513 Magnetic permeability X Page 10 prEN 3155-025:2005Table 6 Fluid Immersion Stoving Category References Duration min Temp. C Temp. C Numberof cycles Fuel JP5 NATO F-44 5+ 2 0 25 85 7 Mineral hydraulic fluid MIL-PRF-5606H NATO H-515 15+ 5 0 85 100 5 Synthetic hydraulic
36、fluid SAE AS 1241 Skydrol 500 B4 Skydrol LD 4 15+ 5 0 85 100 5 Mineral lubricant MIL-PRF-7870C NATO O-142 15+ 5 0 120 125 5 MIL-PRF-23699F NATO O-156 Synthetic lubricant MIL-PRF-7808L NATO O-148 15+ 5 0 150 125 5 MIL-PRF-87937D, diluted 25 % Propanol + 75 % White spirit 15+ 5 0 5 Cleaning products A
37、zeotrope R113 AzM (R113 + methanol) 5+ 2 0 25 25 2 De-icing fluid SAE AMS 1424 NATO S-742 15+ 5 0 50 100 5 Extinguishing fluid Chlorobromethane (less than 0,1 MPa of overpressure) 15+ 5 0 15 25 5 Cooling fluid Coolanol 15+ 5 0 50 25 5 4.6 Gauges See Figure 4 and Table 7. Figure 4 Page 11 prEN 3155-0
38、25:2005Table 7 Application Gauge A B (max. flat) C max. 0,622/0,620 0,20 Not applicable Centre min. 0,599/0,597 0,20 Not applicable max. 5,563/5,560 0,80 3,00 Outer min. 5,514/5,512 0,80 3,00 5 Designation 5.1 Numbering EXAMPLE Description block CONTACT Identity block EN3155-025F08XX Number of this
39、standard Type of contact: F = female Size of contact Cable ferrule (A, B, C, see Table 1) Accessories (A, B, see Table 8) NOTE If necessary, the code I9005 shall be placed between the classification block and the identity block. 5.2 Accessories See Table 8. Table 8 Type Accessory A Without sealing sleeve B With sealing sleeve (See EN 4530-002) 6 Marking Marking shall be in accordance with EN 3155-001. 7 Technical specification See EN 3155-001.
