EN 3475-401:2002

Aerospace series - Cables, electrical, aircraft use - Test Methods - Part 401: Accelerated ageing

This standard specifies a method of determining the effects of accelerated ageing on a finished cable.
It shall be used together with EN 3475-100.

Luft- und Raumfahrt - Elektrische Leitungen für Luftahrtverwendung - Prüfverfahren - Teil 401: Beschleunigte Alterung

Diese Norm legt ein Verfahren zur Bestimmung der Auswirkungen von beschleunigter Alterung auf fertige Leitungen fest.
Sie ist in Verbindung mit EN 3475-100 anzuwenden.

Série aérospatiale - Câbles électriques à usage aéronautique - Méthodes d'essai - Partie 401: Vieillissement accéléré

Cette norme définit une méthode pour déterminer les effets d'un vieillissement accéléré sur un câble terminé.
Elle doit être utilisée conjointement avec EN 3475-100.

Aerospace series - Cables, electrical, aircraft use - Test Methods - Part 401: Accelerated ageing

General Information

• Status: Published
• Publication Date: 15-Jan-2002
• Withdrawal Date: 30-Jul-2002
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Start Date: 28-Feb-2005
• Completion Date: 28-Feb-2005
• Ref Project: SIST EN 3475-401:2004 - Aerospace series - Cables, electrical, aircraft use - Test Methods - Part 401: Accelerated ageing

Overview

EN 3475-401:2002 is a European standard developed by the European Association of Aerospace Manufacturers (AECMA) and approved by CEN. It defines a standardized test method for evaluating the effects of accelerated ageing on finished electrical cables designed for aircraft use. This standard is a critical component of the aerospace industry’s quality assurance processes, ensuring that electrical cables maintain reliability and performance under long-term environmental stress.

This standard must be used in conjunction with EN 3475-100, which covers general test methods for aerospace cables. Together, they provide a comprehensive framework for assessing the durability and safety of electrical cables within aerospace applications.

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Key Topics

• Scope: Focused on the methodology for accelerated ageing of finished electrical cables used in aerospace applications.
• Specimen Preparation: Specifies preparation of 750 mm cable specimens, including stripping details of conductor ends and jackets.
• Test Setup: Includes use of a horizontal mandrel and a natural convection oven to simulate ageing conditions.
• Test Procedure: The specimen is aged by exposure to specific temperatures for 168 hours, followed by controlled cooling.
• Evaluation Criteria: Post-ageing, cables must meet bending performance requirements (EN 3475-405) and voltage proof testing standards (EN 3475-302).

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Applications

EN 3475-401:2002 is essential for aerospace manufacturers, quality control engineers, and certification bodies involved in:

• Aerospace Electrical Wiring Systems: Ensuring electrical cables endure prolonged operational stresses and environmental conditions without degradation.
• Cable Qualification and Certification: Supporting regulatory compliance and safety certification of aircraft electrical components.
• Reliability Testing: Assessing cable resistance to thermal and mechanical stress simulating real-life ageing.
• Maintenance Planning: Providing data to predict cable lifespan and maintenance turnaround for aircraft electrical systems.

This accelerated ageing test ensures that cables retain critical electrical insulation properties and mechanical flexibility, key for high-performance aerospace environments where safety and reliability are paramount.

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Related Standards

• EN 3475-100 – Aerospace series – Cables, electrical, aircraft use – Test methods – Part 100: General
  Covers the general test procedures applied to aerospace electrical cables and must be used alongside EN 3475-401.

• EN 3475-302 – Aerospace series – Cables, electrical, aircraft use – Test methods – Part 302: Voltage proof test
  Specifies testing of electrical insulation integrity post-ageing to verify continued dielectric strength.

• EN 3475-405 – Aerospace series – Cables, electrical, aircraft use – Test methods – Part 405: Bending at ambient temperature
  Defines mechanical bending tests to confirm cable flexibility and resistance to cracking after accelerated ageing.

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Keywords: EN 3475-401, accelerated ageing test, aerospace cables, electrical cable testing, aircraft electrical wiring, cable reliability, aerospace standards, cable ageing methods, EN 3475 series, cable durability testing.

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By adhering to EN 3475-401:2002, aerospace stakeholders ensure that electrical cables meet rigorous ageing performance criteria, contributing to the overall safety and efficiency of aircraft electrical systems. This standard supports consistent, repeatable testing essential for aerospace component qualification and ongoing operational safety.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2004
Aerospace series - Cables, electrical, aircraft use - Test Methods - Part 401:
Accelerated ageing
Aerospace series - Cables, electrical, aircraft use - Test Methods - Part 401: Accelerated
ageing
Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrt, Verwendung - Prüfverfahren -
Teil 401: Beschleunigte Alterung
Série aérospatiale - Câbles électriques a usage aéronautique - Méthodes d'essai - Partie
401: Vieillissement accéléré
Ta slovenski standard je istoveten z: EN 3475-401:2002
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3475-401
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2002
ICS 49.060
English version
Aerospace series - Cables, electrical, aircraft use - Test
Methods - Part 401: Accelerated ageing
Série aérospatiale - Câbles électriques à usage Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrt,
aéronautique - Méthodes d'essai - Partie 401: Verwendung - Prüfverfahren - Teil 401: Beschleunigte
Vieillissement accéléré Alterung
This European Standard was approved by CEN on 6 August 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3475-401:2002 E
worldwide for CEN national Members.

Foreword
This document (EN 3475-401:2002) has been prepared by the European Association of Aerospace
Manufacturers (AECMA).
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
AECMA, 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 July 2002, and co
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