SIST EN 3373-001:2022
(Main)Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 001: Technical specification
Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 001: Technical specification
This document 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-line splices designed for crimping on copper and copper alloy conductors and on aluminium and aluminium alloy conductors.
Luft- und Raumfahrt - Kabelschuhe und Stossverbinder zum Crimpen von elektrischen Leitern - Teil 001: Technische Lieferbedingungen
Dieses Dokument legt die allgemeinen Eigenschaften, Qualifikations , Abnahme und Qualitätssicherungs¬bedingungen sowie die Prüfprogramme und Prüfgruppen für Kabelschuhe und Stoßverbinder zum Crimpen auf Leitern aus Kupfer und Kupferlegierungen und Leitern aus Aluminium und Aluminiumlegierungen fest.
Série aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 001 : Spécification technique
Le présent documente spécifie les caractéristiques générales, les conditions de qualification, de réception et d’assurance qualité, ainsi que les programmes et les groupes d’essais pour les cosses et prolongateurs conçus pour être sertis sur des conducteurs en cuivre et alliage de cuivre ou en aluminium et alliage d’aluminium.
Aeronavtika - Kabelski čevlji in spojne tulke za spajanje s stiskanjem na električne vodnike - 001. del: Tehnična specifikacija
Ta dokument določa splošne značilnosti, pogoje kvalifikacije, sprejemljivosti in zagotavljanja kakovosti ter preskusne programe in skupine za kabelske čevlje in spojne tulke, namenjene spajanju s stiskanjem na električne vodnike iz bakra in bakrovih zlitin ter električne vodnike iz aluminija in aluminijevih zlitin.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 3373-001:2022
01-julij-2022
Nadomešča:
SIST EN 3373-001:2008
Aeronavtika - Kabelski čevlji in spojne tulke za spajanje s stiskanjem na električne
vodnike - 001. del: Tehnična specifikacija
Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors -
Part 001: Technical specification
Luft- und Raumfahrt - Kabelschuhe und Stossverbinder zum Crimpen von elektrischen
Leitern - Teil 001: Technische Lieferbedingungen
Série aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs
électriques - Partie 001 : Spécification technique
Ta slovenski standard je istoveten z: EN 3373-001:2022
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
SIST EN 3373-001:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 3373-001:2022
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SIST EN 3373-001:2022
EN 3373-001
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3373-001:2007
English Version
Aerospace series - Terminal lugs and in-line splices for
crimping on electric conductors - Part 001: Technical
specification
Série aérospatiale - Cosses et prolongateurs pour Luft- und Raumfahrt - Kabelschuhe und Stossverbinder
sertissage sur conducteurs électriques - Partie 001 : zum Crimpen von elektrischen Leitern - Teil 001:
Spécification technique Technische Lieferbedingungen
This European Standard was approved by CEN on 4 October 2020.
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 bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3373-001:2022 E
worldwide for CEN national Members.
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SIST EN 3373-001:2022
EN 3373-001:2022 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General. 5
4.1 Physical characteristics . 5
4.2 Functional characteristics . 5
4.2.1 Recommended cables . 5
4.2.2 Crimping tools . 5
5 Tests . 5
5.1 General. 5
5.2 Special tests . 5
5.2.1 Crimping at low temperature . 5
5.2.2 Sleeve strength . 6
5.2.3 Sealing . 6
5.2.4 Flammability . 6
5.3 Qualification tests for crimped connections on copper cable . 6
5.4 Qualification tests for crimped connections on aluminium cable . 13
6 Quality assurance . 15
6.1 General. 15
6.2 Product Qualification Types . 15
6.2.1 General. 15
6.2.2 Type 1 — Qualifications using the crimp tool tools and tie dies given in the product
standard . 15
6.2.3 Type 2 — Qualification of a crimp device using the applicants own tool design . 16
6.3 Initial qualification conditions. 16
6.3.1 General. 16
6.3.2 Sampling and definition of samples . 16
6.3.3 Preparation of specimens . 16
6.3.4 Programme of qualification tests . 23
6.4 Acceptance and inspection conditions . 24
6.5 Quality control . 24
6.6 Maintaining qualification . 24
Bibliography . 25
2
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SIST EN 3373-001:2022
EN 3373-001:2022 (E)
European foreword
This document (EN 3373-001:2022) 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 document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by November 2022, and conflicting national standards shall be
withdrawn at the latest by November 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3373-001:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
3
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SIST EN 3373-001:2022
EN 3373-001:2022 (E)
1 Scope
This document 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-line splices designed
for crimping on copper and copper alloy conductors and on aluminium and aluminium alloy
conductors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
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 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
EN 4434, Aerospace series — Copper or copper alloy lightweight conductors for electrical cables —
Product standard (Normal and tight tolerances)
IEC 60050-581, International Electrotechnical Vocabulary (IEV) — Part 581: Electromechanical
1
components for electronic equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
*
All parts quoted in this document.
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EN 3373-001:2022 (E)
4 General
4.1 Physical characteristics
The forms and dimensions, masses, materials and operating temperature ranges are defined in the
product standards.
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 or EN 4434 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 that:
• 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 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 EN 2591. These tests are listed in
Table 1 and Table 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 to accommodate a range of cables for a 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, 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, Al 1, Al 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 aluminium alloy cables are included within the test Groups
Al 0, Al 1, Al 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 specimens at a temperature of (−65 ± 2) °C for 1 h.
5
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SIST EN 3373-001:2022
EN 3373-001:2022 (E)
Recover at (20 ± 5) °C for 1 h.
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 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
5 5
increased in × 10 Pa stages every 5 min up to 2 × 10 Pa 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
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 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 not quoted, see Table 7 for sequence of further tests.
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EN 3373-001:2022 (E)
Table 1 (1 of 2)
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 (six) 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 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 on the crimp by the
die are correct (if applicable).
EN 2591-102 Examination of Before crimping, dimensions and masses shall conform to
dimensions and mass the requirements of the product standard.
EN 2591-206 Measurement of The insulation resistance measured between the outer
insulation resistance surface of the insulating sleeve and the cable core shall be
a minimum of 1 000 MΩ.
EN 2591-217 Voltage drop under See Figure 2 and Figure 3.
specified current for
terminal lugs and in-line
splices
EN 2591-218 Ageing of terminal lugs Test current as per Table 2.
and in-line splices by
Requirement: see EN 2591-218.
temperature and
current cycling
EN 2591-219 Voltage strength for Test applicable to terminal lugs and in-line splices with
insulated terminal lugs insulated barrels.
and in-line splices
Requirement: see EN 2591-219.
EN 2591-301 Endurance at Method B.
temperature
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 splices with
insulated barrels.
EN 2591-305 Rapid change of T = operating temperature of the terminal lug or in-line
A
temperature
splice plus 15 °C
T = −65 °C
B
EN 2591-307 Salt mist 48 h unless otherwise specified in the product standard.
Check that no flaking of the protective treatment has
occurred.
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EN 3373-001:2022 (E)
Table 1 (2 of 2)
Designation of the test Details
EN 2591-314 Immersion at low air The in-line splice, fitted with its sealing accessories, shall
pressure be immersed in the solution. The ends of the cables shall
protrude from the solution with neither the sealing
accessories nor 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 Method A.
vibration
Assembly as per Figure 4.
No sign of fracture.
Applicable to terminal lugs only.
EN 2591-417 Tensile strength See Figure 5.
(crimped connection)
The specimen shall not break at a value less than those
specified in Table 2.
EN 3373-001 Crimping at low See 5.2.1.
temperature
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.
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EN 3373-001:2022 (E)
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
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SIST EN 3373-001:2022
EN 3373-001:2022 (E)
Key
1 Reference cable
2 Measurement point
3 Supply terminal
Figure 3 — Assembly for measurin
...
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