1、BRITISH STANDARDBS EN 3373-001:2007Aerospace series Terminal lugs and in-line splices for crimping on electric conductors Part 001: Technical specificationICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g
2、48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3373-001:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2008ISBN 978 0 580 62069 0National forewordThis British Standard is the UK implementation of
3、 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 Installations Accessories, tools and terminations.A list of organizations represented on this committee can be
4、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 with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publica
5、tionDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3373-001October 2007ICS 49.060English VersionAerospace series - Terminal lugs and in-line splices for crimpingon electric conductors - Part 001: Technical specificationSrie arospatiale - Cosses et prolongateurs poursertissage sur con
6、ducteurs lectriques - Partie 001 :Spcification techniqueLuft- und Raumfahrt - Kabelschuhe und Stoverbinder zumCrimpen von elektrischen Leitern - Teil 001: TechnischeLieferbedingungenThis European Standard was approved by CEN on 23 June 2007.CEN members are bound to comply with the CEN/CENELEC Intern
7、al Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.
8、This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are
9、the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerlan
10、d and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3373-0
11、01:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 General4 4.1 Physical characteristics4 4.2 Functional characteristics 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 temperature 5 5
12、.2.2 Sleeve strength 6 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 crimped connections on aluminium cable13 6 Quality assurance15 6.1 General15 6.2 Initial qualification conditions15 6.2.1 General15 6.2.2 Sampling
13、and definition of samples 15 6.2.3 Preparation of specimens.16 6.2.4 Programme of qualification tests.23 6.3 Acceptance and inspection conditions.24 6.4 Quality control24 6.5 Maintaining qualification.24 EN 3373-001:20073 Foreword This document (EN 3373-001:2007) has been prepared by the Aerospace a
14、nd Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to it
15、s 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 April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. Attention is drawn to the poss
16、ibility 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 Regulations, the national standards organizations of the following countries a
17、re bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swe
18、den, Switzerland and the United Kingdom. EN 3373-001:20074 1 Scope This standard specifies the general characteristics, the conditions of qualification, 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
19、 copper alloy conductors and on aluminium and aluminium alloy conductors. 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 referenc
20、ed document (including any amendments) applies. IEC 60050-581, International Electrotechnical Vocabulary Chapter 581: Electromechanical components for electronic equipment. EN 2083, Aerospace series Copper or copper alloy conductors for electrical cables Product standard. EN 2242, Aerospace series C
21、ontrol of tools used for crimping of electrical cables with conductors defined by EN 2083 and EN 2346. *1)EN 2591-*, Aerospace series Elements of electrical and optical connection Test methods. EN 3719, Aerospace series Aluminium or aluminium alloy conductors for electrical cables Product standard.
22、EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts. 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-581 apply. 4 General 4.1 Physical characteristics The forms and dimensions, masses, mater
23、ials and operating temperature ranges are defined in the product standards. *All its parts quoted in this standard. 1) Published as ASD Prestandard at the date of publication of this standard. EN 3373-001:20075 4.2 Functional characteristics 4.2.1 Recommended cables The terminal lugs and in-line spl
24、ices shall allow the correct connection (in accordance with EN 2242) of copper cables conforming to EN 2083 and of aluminium cables conforming to EN 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 th
25、at: they ensure the correct positioning of the crimping area; they have a full closure mechanism which ensures that the crimping cycle is fully completed; the crimping operation does not damage the terminal lug or the in-line splice and does not cause any significant burring; a reference mark identi
26、fying 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 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 barre
27、l 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 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 smalle
28、st and largest permitted cable sections. To rationalise the test procedures and avoid confusion between the tests for copper and aluminium cables, the 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 ca
29、bles. 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 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 componen
30、ts (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 specimens at a temperature of ( 65 2) C for 1 h. Recover at (20 5) C for 1 h. EN 3373-001:20076 5.2.2 Sleeve strength The insulating sleeve shall have a goo
31、d 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 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
32、 be increased in 105Pa stages every 5 min up to 2 105Pa and maintained at this value for 1 h (see Figure 1). The specimen shall be immersed with 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
33、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 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
34、 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 after 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 n
35、ot quoted, see Table 7 for sequence of further tests. 314 5 2 EN 3373-001:20077 Table 1 Designation of the test Details EN 2591-101 Visual examination 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
36、section of cable/barrel size or in-line splice/crimping tool conforms; the form and position of crimping are correct; there are no major cracks 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
37、on the crimp by the die are correct (if applicable). EN 2591-102 Examination of dimensions and mass Before crimping, dimensions and masses shall conform to the requirements of the product standard. EN 2591-206 Measurement of insulation resistance The insulation resistance measured between the outer
38、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 terminal 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 pe
39、r Table 2. Requirement: see EN 2591-218. EN 2591-219 Voltage strength for insulated terminal lugs and in-line splices Test applicable to terminal 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
40、at a temperature 15 C above the operating temperature of the terminal lug or in-line splice. Test applicable terminal lugs and in-line splices 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 2591-30
41、7 Salt mist 48 h unless otherwise specified in the product standard. Check that no flaking of the protective treatment has occurred. continued EN 3373-001:20078 Table 1 (concluded) Designation of the test Details EN 2591-314 Immersion at low air pressure The in-line splice, fitted with its sealing a
42、ccessories, shall be immersed in the solution. The ends of the cables shall protrude from the solution with neither the sealing accessories 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
43、insulated barrels. EN 2591-403 Sinusoidal and random vibration Method A. Assembly as per Figure 4. No sign of fracture. Applicable to terminal 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 3
44、373-001 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 to terminal lugs and in-line splices with insulated barrels. EN 3373-001:20079 Key 1 Reference cable 2 Measurement point 3 Supply terminal Figure 2 Assembly for m
45、easuring the voltage drop in terminal lugs in accordance with EN 2591-217 L1500 min.L12 UrUs2 13 500 min. 3EN 3373-001:200710 Key 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. 1L1U
46、r2L1Us500 min.23EN 3373-001:200711 Key 1 Fixed point 2 Movement point 3 Attachment by nut and spring washer R = 5 external diameter of cable Figure 4 Assembly for the vibration test R 20 20 XYZR 132 1EN 3373-001:200712 Key 1 Upper jaws of tensile testing machine 2 Cable 3 In-line splice 4 Terminal l
47、ug 5 Lower jaws of tensile testing machine Figure 5 Principle of tensile testing machine 1 2 324 5 EN 3373-001:200713 Table 2 Tensile strength and voltage drop (copper conductor) Current cycling Measurementcurrent Maximum voltage drop for one crimp b Nominal section ofthe cables Minimum tensile stre
48、ngth cEN 2083 code mm2AWG 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 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 9
49、2,3 73 1 3 1 080140 14 6 126,3 101 1 3 1 540220 22 4 168,8 135 1 3 1 980340 34 2 226,3 181 1 3 2 720420 42 1 263,8 211 1 3 3 200530 53 0 306,3 245 2 4 4 200680 68 00 353,8 283 2 4 5 300850 85 000 410 328 2 4 6 400107 107 0000 475 380 2 4 8 400aAmerican Wire Gage. bFor in-line splices, the sanction value shall be multiplied by two to allow for the fact that there are two crimps. cValues taken from EN 2242. 5.4 Qualification tests for crimped connections on aluminium cable See Table 3. NOTE Where
