oSIST prEN 3475-505:2025
(Main)Aerospace series - Cables, electrical, aircraft use - Test methods - Part 505: Tensile test on conductors and strands
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 505: Tensile test on conductors and strands
This document specifies a method of measuring the tensile properties of stranded conductors, single strands, solid conductors and braids.
When required, it can be used also on insulated wires and cables after removing the insulation.
It is intended to be used together with EN 3475-100.
Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren - Teil 505: Zugfestigkeit der Einzeldrähte und Leiterseile
Dieses Dokument legt ein Verfahren zur Bestimmung der Zugeigenschaften von mehrdrähtigen Leitern, eindrähtigen Leitern, Einzeldrähten und Schirmgeflechten fest.
Falls erforderlich, kann es auch für isolierte Drähte und Leitungen verwendet werden, nachdem die Isolierung entfernt wurde.
Es ist vorgesehen, dass es in Verbindung mit EN3475-100 angewendet wird.
Série aérospatiale - Câbles électriques à usage aéronautique - Méthodes d'essais - Partie 505 : Résistance à la traction des conducteurs et des brins
Le présent document spécifie une méthode pour mesurer les propriétés de résistance à la traction des conducteurs toronnés, des brins simples, des conducteurs massifs et des tresses.
Si exigé, la méthode peut également être utilisée sur des fils et des câbles isolés après avoir retiré l’isolant.
Il est destiné à être utilisé conjointement avec l’EN 3475-100.
Aeronavtika - Električni kabli za uporabo v zračnih plovilih - Preskusne metode - 505. del: Natezni preskus vodnikov in žic
General Information
- Status
- Not Published
- Public Enquiry End Date
- 24-Dec-2025
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 29-Oct-2025
- Due Date
- 18-Mar-2026
- Completion Date
- 05-Jan-2026
Relations
- Effective Date
- 23-Jul-2025
Overview
prEN 3475-505:2025 (draft) is a CEN/AES aerospace test-method standard that defines a method for measuring the tensile properties of conductors and strands used in aircraft electrical cables. It covers stranded conductors, single strands, solid conductors and braids, and can be applied to insulated wires and cables after insulation removal. The document is intended to be used together with EN 3475-100 (general test-method requirements) and will supersede EN 3475-505:2023.
Key topics and technical requirements
- Scope: Tensile testing of stranded conductors, single strands, solid conductors and braids for aerospace electrical cables.
- Test apparatus:
- Tensile tester with load/elongation accuracy of ±1%.
- Pulling speed: 50 ± 10 mm/min.
- Initial gauge length between jaws: 250 ± 5 mm.
- Jaws designed to produce rupture mid-specimen; fracture not closer than 25 mm to either jaw.
- Specimen preparation:
- Remove insulation when required.
- Remove slack prior to testing; apply a preload for braids to tighten strands.
- For braid testing, cable jacket must be stripped over a minimum 500 mm without damaging shield strands.
- Sampling and reporting:
- Generally three samples per size for repeatability.
- Stranded conductors:
- For cross-sections ≤ 9 mm²: test whole conductor; report average elongation at break (%) and breaking load (N). Breaking load measured at the first strand breaking.
- For cross-sections > 9 mm²: test three strands from each stranding layer (inner/intermediate/outer) or group; report average elongation at break (%) and tensile strength (N/mm²).
- Qualification testing may require strand tests per product standard.
- Single strand / solid conductors: report average elongation at break (%), breaking load (N) and tensile strength (N/mm²).
- Braids: pull-off and test whole braid from three samples; report average elongation, load and tensile strength.
- Conformance: Measured values (elongation, load, tensile strength, yield where required) must meet the applicable product standard limits.
Applications and users
This standard is essential for:
- Aerospace cable manufacturers (design, production QC)
- Test laboratories performing tensile characterization of aircraft conductors and braids
- Procurement and quality engineers specifying cable acceptance criteria
- Certification bodies and compliance auditors verifying mechanical properties of electrical conductors for aircraft systems
Use prEN 3475-505 to ensure consistent, repeatable tensile test results for aerospace-grade conductors and to demonstrate conformity with product specifications.
Related standards
- EN 3475-100 - Aerospace series: Cables electrical, aircraft use - Test methods - Part 100: General
- EN 3475-505:2023 - previous edition (to be superseded)
- ASD‑STAN / CEN procedural documents for European aerospace standardization
For accurate implementation, follow the specimen, apparatus and reporting rules in prEN 3475-505 and pair tests with EN 3475-100 requirements.
Frequently Asked Questions
oSIST prEN 3475-505:2025 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Cables, electrical, aircraft use - Test methods - Part 505: Tensile test on conductors and strands". This standard covers: This document specifies a method of measuring the tensile properties of stranded conductors, single strands, solid conductors and braids. When required, it can be used also on insulated wires and cables after removing the insulation. It is intended to be used together with EN 3475-100.
This document specifies a method of measuring the tensile properties of stranded conductors, single strands, solid conductors and braids. When required, it can be used also on insulated wires and cables after removing the insulation. It is intended to be used together with EN 3475-100.
oSIST prEN 3475-505:2025 is classified under the following ICS (International Classification for Standards) categories: 29.060.20 - Cables; 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN 3475-505:2025 has the following relationships with other standards: It is inter standard links to SIST EN 3475-505:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN 3475-505:2025 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2025
Aeronavtika - Električni kabli za uporabo v zračnih plovilih - Preskusne metode -
505. del: Natezni preskus vodnikov in žic
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 505: Tensile test
on conductors and strands
Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren -
Teil 505: Zugfestigkeit der Einzeldrähte und Leiterseile
Série aérospatiale - Câbles électriques à usage aéronautique - Méthodes d'essais -
Partie 505 : Résistance à la traction des conducteurs et des brins
Ta slovenski standard je istoveten z: prEN 3475-505
ICS:
29.060.20 Kabli Cables
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.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2025
ICS 49.060 Will supersede EN 3475-505:2023
English Version
Aerospace series - Cables, electrical, aircraft use - Test
methods - Part 505: Tensile test on conductors and
strands
Luft- und Raumfahrt - Elektrische Leitungen für
Luftfahrtverwendung - Prüfverfahren - Teil 505:
Zugfestigkeit der Einzeldrähte und Leiterseile
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3475-505:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Apparatus . 6
5 Method . 6
5.1 Stranded conductor. 6
5.2 Single strand or solid conductor . 6
5.3 Braid . 6
6 Requirements . 8
Bibliography . 9
European foreword
This document (prEN 3475-505:2025) has been prepared by 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 is currently submitted to the CEN Enquiry.
This document will supersede EN 3475-505:2023
EN 3475-505:2023:
2 2
— clear distinction between rules based on conductor cross-section (≤9 mm vs > 9 mm ) “for stranded
conductor” in 5.1:
— for cross-section ≤ 9 mm : only report the average value of the elongation
...
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