EN 3745-401:2005
(Main)Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 401: Accelerated ageing
Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 401: Accelerated ageing
This standard specifies a method to determine the effects of accelerated ageing on an optical fibre or cable.
Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil 401: Beschleunigte Alterung
Diese Norm legt mehrere Verfahren zur Bestimmung der Auswirkungen der beschleunigten Alterung auf Licht¬wellenleiter oder Lichtwellenleiterkabel fest.
Série aérospatiale - Fibres et câbles optiques à usage aéronautique - Méthodes d'essais - Partie 401 : Vieeillissement accéléré
Aeronavtika – Optična vlakna in kabli za uporabo v zračnih plovilih – Preskusne metode – 401. del: Pospešeno staranje
General Information
- Status
- Published
- Publication Date
- 15-Nov-2005
- Withdrawal Date
- 30-May-2006
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 16-Nov-2005
- Completion Date
- 16-Nov-2005
Relations
- Effective Date
- 15-Oct-2025
Overview
EN 3745-401:2005 - part of the Aerospace series - specifies a reproducible test method for accelerated ageing of optical fibres and cables for aircraft use. Published by CEN and prepared by AECMA-STAN, this standard defines how to expose fibre or cable specimens to elevated temperature stress, monitor attenuation during exposure, and verify post‑ageing performance and visual condition. The method supports qualification and quality control of aeronautical optical interconnects by simulating long‑term thermal effects in a shortened timeframe.
Key Topics and Requirements
- Scope: Determines effects of accelerated ageing on optical fibre or cable intended for aircraft use.
- Specimen preparation:
- Stabilize specimens at standard test conditions for 24 h (per EN 3745-100) if not already at those conditions.
- Details such as number of specimens, mandrel diameter, number of turns, test temperature, measurement intervals and maximum permissible attenuation variation must be specified in the product/technical specification if not already defined.
- Apparatus:
- Oven for controlled temperature exposure.
- Mandrel for wrapping specimens.
- Light Launch System (LLS) and Light Detector System (LDS) as defined in EN 2591-100.
- Procedure:
- Wrap specimen around mandrel and secure to maintain contact.
- Record a reference attenuation per EN 3745-301 (method C).
- Expose specimens to the specified elevated temperature, typically for 168 h unless otherwise stated.
- Measure attenuation at specified intervals during exposure (EN 3745-301, method C).
- Acceptance and final checks:
- Attenuation during exposure must remain within specified limits.
- After return to ambient temperature, re‑measure attenuation (EN 3745-301 method C) and compare to permitted maximum change.
- Remove specimen from mandrel, straighten and perform visual inspection per EN 3745-201.
Practical Applications and Users
EN 3745-401 is intended for:
- Optical fibre and cable manufacturers performing product qualification and batch quality control.
- Aerospace OEMs and suppliers validating components for aircraft wiring and data links.
- Test laboratories conducting environmental and lifecycle simulations for aeronautical cabling.
- Certification bodies and procurement teams requiring standardized ageing data for specifications and acceptance.
Typical uses include accelerated life testing, verification of thermal stability of attenuation, and pre‑qualification of fibre optic assemblies for aircraft environmental conditions.
Related Standards
- EN 3745-100 - General test conditions for aerospace optical fibres and cables
- EN 3745-201 - Visual inspection (post‑test)
- EN 3745-301 - Attenuation measurement (Method C)
- EN 2591-100 - LLS and LDS definitions for optical testing
Keywords: EN 3745-401, accelerated ageing, optical fibre test, aerospace cable testing, attenuation, mandrel test, LLS, LDS, aircraft optical cables.
Frequently Asked Questions
EN 3745-401:2005 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 401: Accelerated ageing". This standard covers: This standard specifies a method to determine the effects of accelerated ageing on an optical fibre or cable.
This standard specifies a method to determine the effects of accelerated ageing on an optical fibre or cable.
EN 3745-401:2005 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3745-401:2005 has the following relationships with other standards: It is inter standard links to prEN 3745. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 3745-401:2005 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2006
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Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 401:
Accelerated ageing
Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil
401: Beschleunigte Alterung
Série aérospatiale - Fibres et câbles optiques a usage aéronautique - Méthodes d'essais
- Partie 401 : Vieeillissement accéléré
Ta slovenski standard je istoveten z: EN 3745-401:2005
ICS:
49.060
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 3745-401
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2005
ICS 49.060
English Version
Aerospace series - Fibres and cables, optical, aircraft use - Test
methods - Part 401: Accelerated ageing
Série aérospatiale - Fibres et câbles optiques à usage Luft- und Raumfahrt - Faseroptische Leitungen für
aéronautique - Méthodes d'essais - Partie 401 : Luftfahrzeuge - Prüfverfahren - Teil 401: Beschleunigte
Vieeillissement accéléré Alterung
This European Standard was approved by CEN on 19 September 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3745-401:2005: E
worldwide for CEN national Members.
Contents
Foreword .3
1 Scope .4
2 Normative references .4
3 Preparation of specimens .4
4 Apparatus .4
5 Method .5
Foreword
This European Standard (EN 3745-401:2005) has been prepared by the European Association of Aerospace
Manufacturers - Standardization (AECMA-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has re-
ceived the approval of the National Associations and the Official Services of the membe
...
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