SIST EN 3155-001:2016
(Main)Aerospace series - Electrical contacts used in elements of connection - Part 001: Technical Specification
Aerospace series - Electrical contacts used in elements of connection - Part 001: Technical Specification
This European Standard specifies:
the electrical, mechanical, environmental and dimensional 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 programs and groups.
It is applicable to removable crimp contacts, wrap contacts, solder contacts used in connectors or in
other elements of electrical connection.
In case of conflict or missing information between the EN 3155-001 and the product standards, the
product standard shall govern.
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 001: Technische Lieferbedingungen
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 001 : Spécification technique
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 001. del: Tehnična specifikacija
Ta evropski standard določa:
električne, mehanske, okoljske in dimenzijske lastnosti električnih kontaktov,
ki se uporabljajo v veznih elementih, vključno s koaksialnimi, triaksialnimi in štiriaksialnimi kontakti;
pogoje za razvrstitev, preskušanje ustreznosti in zagotavljanje kakovosti;
preskusne programe in skupine.
Uporablja se za odstranljive nagubane kontakte, zavite kontakte in vezne kontakte, ki se uporabljajo v priključkih v
drugih elementih električne vezave.
V primeru spora ali manjkajočih informacij med standardom EN 3155-001 in standardi za proizvode
imajo prednost standardi za proizvode.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 001: Technische LieferbedingungenSérie aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 001 : Spécification techniqueAerospace series - Electrical contacts used in elements of connection - Part 001: Technical Specification49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 3155-001:2016SIST EN 3155-001:2016en,fr,de01-november-2016SIST EN 3155-001:2016SLOVENSKI
STANDARDSIST EN 3155-001:20091DGRPHãþD
SIST EN 3155-001:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3155-001
September
t r s x ICS
v {ä r x r Supersedes EN
u s w wæ r r sã t r r {English Version
Aerospace series æ Electrical contacts used in elements of connection æ Part
r r sã Technical Specification Série aérospatiale æ Contacts électriques utilisés dans les organes de connexion æ Partie
r r s ã Spécification technique
Luftæ und Raumfahrt æ Elektrische Kontakte zur Verwendung in Verbindungselementen æ Teil
r r sã Technische Lieferbedingungen This European Standard was approved by CEN on
v April
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
u s w wæ r r sã t r s x ESIST EN 3155-001:2016
EN 3155-001:2016 (E) 2 Contents
Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 5 4 Conditions of use . 7 5 Design and description . 8 6 Dimensions and mass . 12 7 Operation . 12 8 Tests . 13 9 Quality assurance . 22 10 Designation and marking . 43 11 Delivery conditions . 45 12 Packaging . 45 13 Storage . 45 Annex A (normative)
Symbols of contact sizes in contact arrangement drawings . 46
SIST EN 3155-001:2016
EN 3155-001:2016 (E) 3 European foreword
This document (EN 3155-001:2016) 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 Association, 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, at the latest by March 2017, and conflicting national standards shall be withdrawn at the latest by March 2017. 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. This document supersedes EN 3155-001:2009. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
SIST EN 3155-001:2016
EN 3155-001:2016 (E) 4 1 Scope
This European Standard specifies: the electrical, mechanical, environmental and dimensional 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 programs and groups. It is applicable to removable crimp contacts, wrap contacts, solder contacts used in connectors or in other elements of electrical connection. In case of conflict or missing information between the EN 3155-001 and the product standards, the product standard shall govern. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2083, Aerospace series — Copper or copper alloy conductors for electrical cables — Product standard EN 2242, Aerospace series — Crimping of electric cables with conductors defined by EN 2083, EN 4434 and EN 2346 EN 2424, Aerospace series — Marking of aerospace products EN 2591-100*, Aerospace series — Elements of electrical and optical connection — Test methods — Part 100: General EN 3197, Aerospace Series — Design and installation of aircraft electrical and optical interconnection systems
EN 4434, Aerospace series — Copper or copper alloy lightweight conductors for electrical cables — Product standard (Normal and tight tolerances) EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts EN ISO 1302, Geometrical Product Specifications (GPS) — Indication of surface texture in technical product documentation (ISO 1302) EN ISO 27874, Metallic and other inorganic coatings — Electrodeposited gold and gold alloy coatings for electrical, electronic and engineering purposes — Specification and test methods (ISO 27874) ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling plans indexed by acceptance quality level (AQL) for lot-by-lot inspection
* All parts quoted in this European Standard. SIST EN 3155-001:2016
EN 3155-001:2016 (E) 5 ISO 8843, Aircraft — Crimp-removable contacts for electrical connectors — Identification system IEC 60352-1, Solderless connections — Part 1: Wrapped connections — General requirements, test methods and practical guidance 1)
TR 3198, Aerospace series — Manufacturers' identification monograms and marks for EN aerospace products 2) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 2591-100 and the following apply. 3.1 LSP Length of Selective Protection 3.2 point of electrical contact position of point of application of the force which provides contact pressure 3.3 contact active area part of the contact which allows current to pass between the contact male and female 3.4 contact transition area all mechanical liaisons that contribute to electrical performance and which are different from contact active area defined in 3.3 3.5 coaxial contact male or female assembly of two contacts arranged coaxially enabling the connection of coaxial, shielded or bifilar cables See Figure 1. NOTE 1 Male 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 is female; the central contact(s) may be male or female.
Coupling face
Key 1 Centre contact 2 Outer contact Figure 1
1) Published by: IEC International Electrotechnical Commission. http://www.iec.ch/ 2) Published as ASD-STAN Technical Report at the date of publication of this European Standard. http://www.asd-stan.org/ SIST EN 3155-001:2016
EN 3155-001:2016 (E) 6 3.6 triaxial contacts male or female assembly of three contacts arranged coaxially, enabling the connection 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 is female; the central contact(s) may be male or female.
Key 1 Centre contact 2 Intermediate contact 3 Outer contact Figure 2 3.7 bifilar contact (twinax) assembly of three contacts, two of which are parallel, the third being peripheral to these, enabling the connection of shielded bifilar cables See Figure 3. NOTE 1 Male twinax contact where the outer contact is male; the central contacts may be male or female. NOTE 2 Female twinax contact where the outer contact is female; the central contacts may be male or female.
Key 1 Twin parallel contacts 2 Outer contact Figure 3 3.8 quadrax contact assembly of five contacts, four of which are parallel, the fifth being peripheral to these, enabling the connection of shielded quadrax cables See Figure 4. NOTE 1 Male quadrax contact where the outer contact is male; the central contacts may be male or female. NOTE 2 Female quadrax contact where the outer contact is female; the central contacts may be male or female.
Key 1 Four parallel contacts 2 Outer contact Figure 4 SIST EN 3155-001:2016
EN 3155-001:2016 (E) 7 4 Conditions of use 4.1 Types of contact The contact specified shall be one of the following types: Type A: Removable contact for general application; Type B: Non-removable contact, See Note; Type C: Removable contact for thermocouple; Type D: Removable 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: Removable contact with screening feature, including coaxial, triaxial, bifilar and quadrax contacts. These have matched impedance. NOTE Type B 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 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 standard. 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. 4.3.2 The type of cable, coaxial, triaxial, etc. shall be specified in the product standard.
SIST EN 3155-001:2016
EN 3155-001:2016 (E) 8 5 Design and description 5.1 Design 5.1.1 General
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. Stamped and formed technology for body contact are not allowed.
5.1.2 Mating end of female contact, cylindrical contacts Unless otherwise stated in the product standard, the mating end of female contacts from size 08 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. 5.1.3 Mating end of male contacts, cylindrical contacts Unless 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 — Gauge dimensions for male contact Contact size Pin active area contact diameter
Diameter of flat at the mating end
Contact size Pin active area Contact diameter Diameter of flat at the mating end mm mm mm mm
28 a
0,394 0,368 0,19 max. 14 2,01 1,96 0,99 0,61
26 a 0,521 0,495 0,25 max. 12 2,41 2,36 1,57 1,19
24 a 0,65 0,62 0,30 max. 10 3,20 3,15 2,08 1,57 23 0,705 0,659 0,30 max. 8 3,63 3,58 2,18 1,68 22 0,775 0,750 0,35 max. 6 4,55 4,50 2,44 1,93 20 1,04 0,99 0,51 0,13 4 5,74 5,69 2,79 2,29 16 1,61 1,56 0,81 0,43 — — — a Inner contact of type D or type E.
5.1.4 Solder buckets The buckets shall be designed so that during soft soldering operations, the liquid solder cannot run towards the end of the contact. SIST EN 3155-001:2016
EN 3155-001:2016 (E) 9 5.1.5 Crimp barrels Barrels shall be designed to accept the range of permissible conductors according to ISO 8843, EN 2083 and EN 4434. 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 OEMs. 5.1.6 Terminations for wrapped connections The terminations for wrapped connections shall comply with IEC 60352-1. 5.1.7 Surface roughness (see EN ISO 1302) The surface roughness after coating in the male contact zone shall not exceed Ra = 0,8 µm (or N6); in the other zones, it shall not exceed Ra = 1,6 µm (or N7). 5.1.8 Engagement sequence The engagement sequence for coaxial and quadrax contacts shall be outer contact, 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 definition document. When dissimilar metals are in close contact, the electromotive force of the galvanic couple shall not exceed 0,25 V, see EN 3197. 5.3 Metallic protective plating Except contact type C contact. 5.3.1 General
The protective coating may be either uniform over the entire surface of the contact, or it may be selective. The entire contact shall have a nickel undercoat and gold overcoat, with the exception of fittings or retaining features such as springs or spring clips which shall be made of a corrosion resisting material. Three functional areas are defined with their minimum gold plating thickness requirements as follows: Crimping area,
Transition
area, Active area, See description in paragraph from 5.3.1.1 to 5.3.1.3. SIST EN 3155-001:2016
EN 3155-001:2016 (E) 10 5.3.1.1 Crimping area
Crimping area shall be protected as follows: Inside barrel: EN ISO 27874 Ni 0,76 µm min./Au(99,0) 0,1 µm minimum in crimping area (from the extremity of the crimp barrel to the inspection hole). Inside barrel: EN ISO 27874 Ni 0,76 µm min./Au(99,0) 0,05 µm minimum after inspection hole up to the bottom of the drilled barrel. Outside barrel: EN ISO 27874 Ni 0,76 µm min./Au(99,0) 0,1 µm minimum in crimping area. 5.3.1.2 Transition area Transition area are defined in 3.4 and Figure 7 and shall be protected as follows: EN ISO 27874 Ni 1,25 µm min./Au(99,0) 0,2 µm minimum (or 0,1 µm on each side of interfaces). 5.3.1.3 Active area Active areas are defined in 3.3 and Figure 5, Figure 6 and shall be protected as follows: EN ISO 27874 Ni 1,25 µm min./Au(99,0) 0,8 µm minimum. As specified in the product standards, the gold plating on contact for the LSP areas shall be in accordance with the above requirements. In the other zones, the thickness of the protections is generally not specified, but the minimum shall be as per 5.3.1.1 and 5.3.1.2. A change in colour of the gold plating is not a reason for rejection excepted in active areas Y [see Figure 5b), key 4, male active area] and X [see Figure 5c), key 6, female active area]. The gold plating thickness shall be sufficient to fulfil the performances required in this specification. However, and unless otherwise specified in the product standard, it shall never be lower than 0,8 µm. It is a supplier responsibility to define the right gold thickness to meet the performances tests required in this technical specification if the 0,8 µm minimum are not sufficient to pass the expected requirements. 5.3.1.4 All other areas All other areas shall be protected as follows: EN ISO 27874 Ni 0,76 µm min./Au(99,0) 0,1 µm minimum.
SIST EN 3155-001:2016
EN 3155-001:2016 (E) 11
a)
Engaged pin / socket contact
b)
Detail A: male contact c)
Detail A: female contact
d) e)
Key 1 Male contact with maximum diameter 2 Pressure element 3 Engagement of contacts (given in connector technical specification) 4 Male active area (Y) see product standard
5 First point of electrical contact (Point at which a square ended minimum gauge pin of the same basic diameter as the mating contact first engages the female contact spring member). 6 Female active area (X = 1 mm length min. of gold plating) 7 Position of the first point and the maximum length of electrical contact (Point at which a square ended minimum gauge pin of the same basic diameter as the mating contact first engages the female contact spring member as defined in the contact product standard)
8 Length of Selective Protection "LSP" which shall include the length of the Key 4 (for male) or 6 (for female) and the radius/chamfer at the extremity.
Figure 5 — Contact with integrated pressure element SIST EN 3155-001:2016
EN 3155-001:2016 (E) 12
Key 1 Contact active area X = contact active area Y Figure 6 — Female contact with separate pressure elements
Key 1 Electrical contact transition area
NOTE See Figure 5 for Detail A. Figure 7 — Contact with separate pressure element
For contacts types D and E.
Inner contact and outer contact bodies see Figure 5, Figure 6 and applicable standard products. 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. SIST EN 3155-001:2016
EN 3155-001:2016 (E) 13 8 Tests See Table 2. Table 2 — Qualification tests
EN 2591- Test Details 101 Visual examination Initial examination: before and after wiring Details to be examined and documented : identification of materials in accordance with definition document; identification; aspect before and after wiring (No breaking strand at the rear of the barrel); marking; surface roughness in accordance with 5.1.7. For crimped terminations, after wiring, the crimp joint shall be examined (10 times magnification) for cracking exposing the base metal, except type C contact. Intermediate and final examination: Details to be examined and documented: gold plating shall be present at electrical contact point and transition area. There shall be no crack, burr, peeling or blister. No breaking strand at the rear of the barrel 102 Examination of dimensions and mass In accordance with the product standard. 201 Contact resistance - low level Applicable to type A contacts of size 20 and smaller and to types D and E contacts.
Types A, D and E contacts Unless otherwise specified in the product standard, the contact resistance shall not exceed the maximum values given below (in mΩ).
Contact size Type A
Initially After
tests
≤ 24
– a
– a
23 8 11
22 8 11
20 5 7
a To be specified in the product standard.
The contact resistance values for types D and E shall be specified in the product standard. SIST EN 3155-001:2016
EN 3155-001:2016 (E) 14 EN 2591- Test Details 202 Contact resistance at rated current Applicable to types A, D and E contacts.
Types A, D and E contacts Unless otherwise specified in the product standard, the contact resistance shall not exceed the maximum values given below (in mΩ).
Type A
Contact size At ambient temperature At high temperature
Initially After tests Class P 125 °C Class R 150 °C Class S 200 °C Class T 260 °C Class U 350 °C
24
– a
– a
– a
– a
– a
– a
– a
23 8 11 a a 14 a a
22 8 11 12 12,8 13,6 14,4
– a
20 5 7 7,5 8 8,5 9
– a
16 3 5 4,5 4,8 5,1 5,4
– a
≥ 12 2 3 3 3,2 3,4 3,6
– a
a To be specified in the product standard.
Types D and E: The contact resistance values shall be specified in the product standard. 203 Electrical continuity at microvolt level See product standard. 204 Discontinuity of contacts in the microsecond range No discontinuity ≥ 1 µs For types D and E contacts: duration of discontinuity specified in the product standard. Method B or Method A
Test duration: throughout the duration of tests EN 2591-402 (Shock) and EN 2591-403 (Vibrations). 205 Housing (shell) electrical continuity Not applicable 206 Measurement of insulation resistance Method C – Contact type D or E Otherwise specified in the product standard, the value shall be: at room temperature ≥ 5 GΩ; at high temperature ≥ 2 GΩ at the maximum temperature specified. 207 Voltage proof test Method C – Contact types D and E The values for: voltage to apply; pressure; leakage current. shall be defined in the product standard. 208 Temperature rise due to rated current Not applicable 209 Current temperature derating Not applicable SIST EN 3155-001:2016
EN 3155-001:2016 (E) 15 EN 2591- Test Details 210 Electrical overload Contact wired and not fitted into the connector Cylindrical contacts type A.
Contact size Current A Duration s Contact size Current A Duration s
28 Not applicable 10 66 330 40 0,6
26 Not applicable 8 92 460 40 0,6
24 5 25 40 0,6 6 120 600 40 0,6
23 5 25 40 0,6 4 160 800 40 0,6
22 10 50 40 0,6 2 200 1 000 40 0,6
20 15 75 40 0,6 0 300 1 500 40 0,6
16 26 130 40 0,6 2/0 370 1 850 40 0,6
14 36 180 40 0,6 4/0 450 2 250 40 0,6
12 46 230 40 0,6 — — —
Other types of contacts: in accordance with the product standard. 211 Capacitance Applicable to types D and E contacts unless otherwise specified in the product standard. 212 Surface transfer impedance Types D and E, see product standard. 213 Shielding effectiveness from 100 MHz to 1 GHz Types D and E, see product standard. 214 Lightning strike, current and voltage pulse Not applicable 216 Engagement depth of contacts Not applicable 217 Voltage drop under specified current for terminal lugs and in-line splices Not applicable 218 Ageing of terminal lugs and in-line splices by temperature and current cycling Not applicable 219 Voltage strength for insulated terminal lugs and in-line splices Not applicable 220 Contact/conductor joint ageing by current and temperature cycling See product standard. 221 Voltage Standing Wave Ratio (VSWR) Type E, see product standard. 222 Insertion Loss (I.L.) Type E, see product standard. 223 Measurement of characteristic impedance of a coaxial connector or contact Type E, see product standard. 224 RF leakage Not applicable 225 RF high potential withstanding voltage Not applicable SIST EN 3155-001:2016
EN 3155-001:2016 (E) 16 EN 2591- Test Details 226 Corona level Not applicable 301 Endurance at temperature Method B,
Except:
Mated contact shall not be fitted into the connector. Contact shall not be wired in serial. Test under load not applicable Temperature: according to product standard. Duration: according to product standard. 302 Climatic sequence Not applicable 303 Cold/low pressure and damp heat Not applicable 304 Damp heat steady state Not applicable 305 Rapid change of temperature Contacts shall be wired and mated Mated contact shall not be fitted into the connector. Types A, C, D and E TA = maximum temperature specified in the product standard TB = minimum temperature specified in the product standard T1 = 1505+ min, 500 cycles applicable for test group 1 T1 = 3005+ min, 10 cycles applicable for test group 2 306 Mould growth Types D and E contacts. Method A Duration: 28 d Nil growth. No prior washing. No surface etching. 307 Salt mist Contacts wired and connector unmated
Duration: 48 h Corrosion due to the cable is not taken into account. 308 Sand and dust Not applicable 309 Dry heat Not applicable 310 Cold Not applicable 311 Low air pressure Not applicable 312 Air leakage Not applicable 313 Artificial rain Not applicable 314 Immersion at low air pressure Not applicable SIST EN 3155-001:2016
EN 3155-001:2016 (E) 17 EN 2591- Test Details 315 Fluid resistance Types A and C contacts which have a plastic link between the cable and the contact. Types A, D and E contacts which are fitted with non-metallic elements. Fluids and test conditions in accordance with the product standard. 316 Ozone resistance Types A, D and E contacts which are fitted with non-metallic elements. 317 Flammability Not applicable 318 Fire-resistance Not applicable 319 Gastightness of solderless wrapped connections Applicable 320 Simulated solar radiation at ground level Not applicable 321 Damp heat, cyclic test Not applicable 322 Hermeticity Not applicable 323 Thermal shock Not applicable 324 Interfacial sealing Not applicable 325 Ice resistance Not applicable 401 Acceleration, steady state Not applicable 402 Shock Unless otherwise specified in the product standards,
The elements of connection fitted with appropriate backshell shall be mated and mounted on the vibration apparatus using appropriate mounting systems. The cables are clamped on the shaker at a minimum of 200 mm from the rear of the backshell. Method A: 300 gn. or as specified in the product standard Two shocks in the three mutual perpendicular axis, one in each direction, Total: six shocks; or as specified in the product standard. 403 Sinusoidal and random vibration Unless otherwise specified in the product standards,
The elements of connection fitted with appropriate backshell shall be mated and mounted on the vibration apparatus using appropriate mounting systems. The cables are clamped on the shaker at a minimum of 200 mm from the rear of the backshell. Method, duration and temperature shall be according to the most severe and applicable connector as specified in product standards. After test and before unmating the connectors
the EN 2591-202 shall be performed. SIST EN 3155-001:2016
EN 3155-001:2016 (E) 18 EN 2591- Test Details 404 Transverse load Not applicable 405 Axial load Not applicable 406 Mechanical endurance Unless otherwise specified in the product standard, the contacts shall undergo 500 mating and unmating operations; the rate shall not exceed five cycles per minute. 407 Durability of contact retention system and seals
Not applicable 408 Mating and unmating forces Not applicable 409 Contact retention in insert Not applicable 410 Insert retention in housing (axial) Not applicable 411 Insert retention in housing (torsional) Not applicable 412 Contact insertion and extraction forces Not applicable 413 Holding force of grounding spring system Not applicable 414 Unmating of lanyard release connectors Not applicable 415 Test probe damage (female contacts) Contacts types A and C.
Length of probe: ½ of depth A1 in order to test the elastic portion of the female contacts under test fitted in a connector or in a representative assembly. Probe B diameter and value of bending moment unless otherwise specified in product standard:
Contact size B ± 0,01 Moment Contact size B ± 0,01 Moment
mm Nm
mm Nm
24 0,64 0,014 8 3,61 0,454
23 0,69 0,014 6 4,52 0,454
22 0,76 0,014 4 5,72 0,454
20 1,02 0,057 2 7,19 0,454
16 1,59 0,227 0 9,07 0,908
14 1,98 0,227 2/0 10,31 0,908
12 2,39 0,227 4/0 12,70 0,908
10 3,18 0,227 — — —
SIST EN 3155-001:2016
EN 3155-001:2016 (E) 19 EN 2591- Test Details 416 Contact bending strength Type A contacts. Size 20 and smaller.
Contact size Moment Nm
20 0,060
22 0,025
23 0,018
24 0,015
Maximum permitted permanent set: 0,13 mm. For type C contacts the values shall be indicated in the product standard. 417 Tensile strength (crimped connection) Crimping tool and wire gauge in accordance with the product standard. Tension load: according to EN 2242. 418 Gauge insertion/extraction forces (female contacts) Unless o
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