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1、BRITISH STANDARD BS EN 3373-001:2007 Aerospace series Terminal lugs and in-line splices for crimping on electric conductors Part 001: Technical specification ICS 49.060 ? BS EN 3373-001:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31
2、March 2008 BSI 2008 ISBN 978 0 580 62069 0 National foreword This British Standard is the UK implementation of EN 3373-001:2007. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Panel ACE/6/-/8, Aerospace
3、Installations Accessories, tools and terminations. A list of organizations represented on this committee 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
4、 with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3373-001 October 2007 ICS 49.060 English Version Aerospace series - Terminal lugs and in-line splices for crimping
5、on electric conductors - Part 001: Technical specification Srie arospatiale - Cosses et prolongateurs pour sertissage sur conducteurs lectriques - Partie 001 : Spcification technique Luft- und Raumfahrt - Kabelschuhe und Stoverbinder zum Crimpen von elektrischen Leitern - Teil 001: Technische Liefer
6、bedingungen This European Standard was approved by CEN on 23 June 2007. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliograp
7、hical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a
8、CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
9、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36
10、 B-1050 Brussels 2007 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3373-001:2007: E 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 General4 4.1 Physical characteristics4 4.2 Functional ch
11、aracteristics 5 4.2.1 Recommended cables.5 4.2.2 Crimping tools5 5 Tests5 5.1 General5 5.2 Special tests.5 5.2.1 Crimping at low temperature5 5.2.2 Sleeve strength6 5.2.3 Sealing 6 5.2.4 Flammability.6 5.3 Qualification tests for crimped connections on copper cable6 5.4 Qualification tests for crimp
12、ed connections on aluminium cable13 6 Quality assurance15 6.1 General15 6.2 Initial qualification conditions15 6.2.1 General15 6.2.2 Sampling and definition of samples15 6.2.3 Preparation of specimens.16 6.2.4 Programme of qualification tests.23 6.3 Acceptance and inspection conditions.24 6.4 Qualit
13、y control24 6.5 Maintaining qualification.24 EN 3373-001:2007 ? 3 Foreword This document (EN 3373-001:2007) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Associa
14、tion, this Standard has received the approval of the National Associations 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
15、, at the latest by April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. 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
16、 or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungar
17、y, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3373-001:2007 ? 4 1 Scope This standard specifies the general characteristics, the conditions of qualification,
18、acceptance and quality assurance, as well as the test programs and groups for terminal lugs and in-Iine splices designed for crimping on copper and copper alloy conductors and on aluminium and aluminium alloy conductors. 2 Normative references The following referenced documents are indispensable for
19、 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) applies. IEC 60050-581, International Electrotechnical Vocabulary Chapter 581: Electromechanical components for el
20、ectronic equipment. EN 2083, Aerospace series Copper or copper alloy conductors for electrical cables Product standard. EN 2242, Aerospace series Control of tools used for crimping of electrical cables with conductors defined by EN 2083 and EN 2346.*1) EN 2591-*, Aerospace series Elements of electri
21、cal and optical connection Test methods. EN 3719, Aerospace series Aluminium or aluminium alloy conductors for electrical cables Product standard. EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts. 3 Terms and definitions For the purposes of th
22、is document, the terms and definitions given in IEC 60050-581 apply. 4 General 4.1 Physical characteristics The forms and dimensions, masses, materials and operating temperature ranges are defined in the product standards. * All its parts quoted in this standard. 1) Published as ASD Prestandard at t
23、he date of publication of this standard. EN 3373-001:2007 ? 5 4.2 Functional characteristics 4.2.1 Recommended cables The terminal lugs and in-line splices shall allow the correct connection (in accordance with EN 2242) of copper cables conforming to EN 2083 and of aluminium cables conforming to EN
24、3719. 4.2.2 Crimping tools The tools which are referred to in the product standards regarding terminal lugs and in-line splices shall be designed so that: they ensure the correct positioning of the crimping area; they have a full closure mechanism which ensures that the crimping cycle is fully compl
25、eted; the crimping operation does not damage the terminal lug or the in-line splice and does not cause any significant burring; a reference mark identifying the gauge is made in the crimping area, if possible. 5 Tests 5.1 General Unless otherwise specified, the tests shall be selected from those in
26、EN 2591. These tests are listed in Tables 1 and 3. The tests shall be carried out on each combination of gauge, material and plating of the crimp barrel crimped on the appropriate section of each type of cable (material and plating), for each type of crimping tool. When a crimping barrel is designed
27、 to accommodate a range of cables for a s specific type of tool or for a type or size of die or stop, the tests shall be carried out on only the smallest and largest permitted cable sections. To rationalise the test procedures and avoid confusion between the tests for copper and aluminium cables, th
28、e tests have been grouped together, and are defined as Group Cu 0, Cu 1, Cu 2, etc. for copper cables and Group Al 0, AI 1, AI 2, etc. for aluminium cables. For the purposes of these groups, copper and copper alloy cables are included within test Groups Cu 0, Cu 1, Cu 2, etc. Likewise aluminium and
29、aluminium alloy cables are included within the test Groups AI 0, AI 1, AI 2, etc. 5.2 Special tests 5.2.1 Crimping at low temperature Keep the components (cable, terminal lugs or in-line splices and crimping tools) at a temperature of ( 15 2) C for 1 h, then crimp at that temperature. Keep the speci
30、mens at a temperature of ( 65 2) C for 1 h. Recover at (20 5) C for 1 h. EN 3373-001:2007 ? 6 5.2.2 Sleeve strength The insulating sleeve shall have a good grip on the terminal lug barrel before and after crimping and, when held by a fork passed around the crimping barrel, the displacement shall not
31、 be more than 1 mm under an axial load of 35 N. 5.2.3 Sealing The cable shall be placed in a tube connected to a compressed air supply; the pressure shall be increased in 105 Pa stages every 5 min up to 2 105 Pa and maintained at this value for 1 h (see Figure 1). The specimen shall be immersed with
32、 the end of the barrel approximately 50 mm below the water level. There shall not be any leakage in the crimping area. Key 1 60 mm to 100 mm 2 Terminal lug 3 Cable 4 Collar clamp 5 Compressed air supply pipe Figure 1 Assembly for the sealing test 5.2.4 Flammability The specimen shall be suspended in
33、 a still air chamber above a Bunsen burner with a 100 mm long tube and an internal diameter of (9,5 0,5) mm. The end of the 25 mm blue flame produced by the Bunsen burner shall be applied for 20 s to half the length of the insulation of the specimen. There shall be no flame or incandescence 15 s aft
34、er the flame is withdrawn. 5.3 Qualification tests for crimped connections on copper cable See Table 1. NOTE Where a requirement for an individual test is not quoted, see Table 7 for sequence of further tests. 3 1 452 EN 3373-001:2007 ? 7 Table 1 Designation of the test Details EN 2591-101 Visual ex
35、amination With the naked or normally corrected eye on crimped specimens. An optical magnification of 6 to 10 may be used if required. Check that: the combined section of cable/barrel size or in-line splice/crimping tool conforms; the form and position of crimping are correct; there are no major crac
36、ks or burrs on the barrel; the cable core is correctly inserted in the barrel; the cable core and insulation are not damaged; the identification marks stamped on the crimp by the die are correct (if applicable). EN 2591-102 Examination of dimensions and mass Before crimping, dimensions and masses sh
37、all conform to the requirements of the product standard. EN 2591-206 Measurement of insulation resistance The insulation resistance measured between the outer surface of the insulating sleeve and the cable core shall be a minimum of 1 000 M. EN 2591-217 Voltage drop under specified current for termi
38、nal lugs and in-line splices See Figures 2 and 3. EN 2591-218 Ageing of terminal lugs and in-line splices by temperature and current cycling Test current as per Table 2. Requirement: see EN 2591-218. EN 2591-219 Voltage strength for insulated terminal lugs and in-line splices Test applicable to term
39、inal lugs and in-line splices with insulated barrels. Requirement: see EN 2591-219. EN 2591-301 Endurance at temperature Method B. 120 h in a dry heat chamber at a temperature 15 C above the operating temperature of the terminal lug or in-line splice. Test applicable terminal lugs and in-line splice
40、s with insulated barrels. EN 2591-305 Rapid change of temperature TA= operating temperature of the terminal lug or in-line splice plus 15 C TB= 65 C EN 2591-307 Salt mist 48 h unless otherwise specified in the product standard. Check that no flaking of the protective treatment has occurred. continue
41、d EN 3373-001:2007 ? 8 Table 1 (concluded) Designation of the test Details EN 2591-314 Immersion at low air pressure The in-line splice, fitted with its sealing accessories, shall be immersed in the solution. The ends of the cables shall protrude from the solution with neither the sealing accessorie
42、s and the crimps being subjected to any stress. Pressure of chamber 4 kPa. EN 2591-315 Fluid resistance Test applicable to terminal lugs and in-line splices with insulated barrels. EN 2591-403 Sinusoidal and random vibration Method A. Assembly as per Figure 4. No sign of fracture. Applicable to term
43、inal lugs only. EN 2591-417 Tensile strength (crimped connection) See Figure 5. The specimen shall not break at a value less than those specified in Table 2. EN 3373-001 Crimping at low temperature See 5.2.1. EN 3373-001 Sleeve strength See 5.2.2. EN 3373-001 Flammability See 5.2.4. Test applicable
44、to terminal lugs and in-line splices with insulated barrels. EN 3373-001:2007 9 Key 1 Reference cable 2 Measurement point 3 Supply terminal Figure 2 Assembly for measuring the voltage drop in terminal lugs in accordance with EN 2591-217 L1 500 min. L1 2 Ur Us 2 1 3 500 min. 3 EN 3373-001:2007 10 Key
45、 1 Reference cable 2 Measurement point 3 Supply terminal Figure 3 Assembly for measuring the voltage drop in in-line splices in accordance with EN 2591-217 3 500 min. 1 L1 Ur 2 L1 Us 500 min. 2 3 EN 3373-001:2007 11 Key 1 Fixed point 2 Movement point 3 Attachment by nut and spring washer R = 5 exter
46、nal diameter of cable Figure 4 Assembly for the vibration test R 2020 X Y Z R 1 32 1 EN 3373-001:2007 12 Key 1 Upper jaws of tensile testing machine 2 Cable 3 In-line splice 4 Terminal lug 5 Lower jaws of tensile testing machine Figure 5 Principle of tensile testing machine 1 2 3 2 4 5 EN 3373-001:2
47、007 13 Table 2 Tensile strength and voltage drop (copper conductor) Current cycling Measurement current Maximum voltage drop for one crimp b Nominal section of the cables Minimum tensile strength c EN 2083 code mm2 AWG a A A Initial mV After testing mV N 001 0,15 26 3,7 3 3 5 39 002 0,25 24 5,6 4,5
48、2 4 55 004 0,40 22 11,3 9 1 3 60 006 0,60 20 13,8 11 1 3 90 010 1 18 18 16 1 3 150 012 1,20 16 27,5 22 1 3 180 020 2 14 40 32 1 3 300 030 3 12 51,3 41 1 3 450 050 5 10 68,8 55 1 3 700 090 9 8 92,3 73 1 3 1 080 140 14 6 126,3 101 1 3 1 540 220 22 4 168,8 135 1 3 1 980 340 34 2 226,3 181 1 3 2 720 420
49、 42 1 263,8 211 1 3 3 200 530 53 0 306,3 245 2 4 4 200 680 68 00 353,8 283 2 4 5 300 850 85 000 410 328 2 4 6 400 107 107 0000 475 380 2 4 8 400 a American Wire Gage. b For in-line splices, the sanction value shall be multiplied by two to allow for the fact that there are two crimps. c Values taken from EN 2242. 5.4 Qualification tests for crimped