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SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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.
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
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.
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
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
• IEC Electropedia: available at
*
All parts quoted in this document.
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.
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
...