EN 3745-517:2017
(Main)Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 517: Cable tie clamping test
Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 517: Cable tie clamping test
This European Standard specifies a method of determining the attenuation variation of an optical cable when clamped to a mandrel with cable ties, simulating the condition in an installed harness.
Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil 517: Klemmprüfung mit Kabelbindern
Série aérospatiale - Fibres et câbles optiques à usage aéronautique - Méthodes d'essais - Partie 517: Essai de serrage par colliers de frettage
Aeronavtika - Optična vlakna in kabli za uporabo v zračnih plovilih - Preskusne metode - 517. del: Preskus zategljivosti kabelskih vezic
Ta evropski standard določa metodo za ugotavljanje sprememb v slabljenju optičnega kabla, ki je z kabelskimi vezicami pritrjen na trn, s čimer se posnema stanje na nameščenem pasovju.
General Information
- Status
- Published
- Publication Date
- 21-Mar-2017
- Withdrawal Date
- 29-Sep-2017
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 22-Mar-2017
- Completion Date
- 22-Mar-2017
Relations
- Effective Date
- 29-Mar-2017
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 15-Oct-2025
Overview
EN 3745-517:2017 is a European standard developed by CEN in collaboration with the Aerospace and Defence Industries Association of Europe (ASD-STAN). It specifies a precise test method for measuring the attenuation variation of optical fibers and cables used in aerospace applications when clamped with cable ties. This test simulates the conditions an optical cable undergoes within an installed harness, ensuring reliability and performance in critical aircraft environments.
Key Topics
- Scope: Defines the procedure to determine attenuation changes in optical cables clamped using cable ties on a mandrel, mimicking actual installation scenarios in aerospace harnesses.
- Specimen Preparation:
- Fiber ends must meet preparation criteria as per EN 2591-100.
- Test specimen length is according to the relevant product standard.
- Specimens stabilize under standard conditions for 24 hours before testing.
- Minimum six cable ties applied at specific spacing (usually 150 mm unless otherwise defined).
- Apparatus and Setup:
- Utilizes a Light Launch System (LLS) and Light Detection System (LDS) in accordance with EN 2591-100.
- Mandrel diameter and cable tie application are standardized to simulate installed harness conditions.
- Test Method:
- Initial optical transmittance measured at wavelengths 850 nm and 1300 nm as reference.
- Cable ties of type EN 4056-003 applied and tightened with specified tools and tension.
- After a 15-minute relaxation period, attenuation is re-measured to detect variations.
- Final measurements taken post removal of cable ties to capture residual attenuation.
- Performance Criteria:
- Attenuation variation is assessed using EN 3745-301, method C.
- Visual inspection of specimens is conducted according to EN 3745-201.
Applications
EN 3745-517:2017 is critical for manufacturers, quality assurance teams, and maintenance engineers involved in aerospace optical cable systems. The standard ensures:
- Reliability of Optical Fibers in Aircraft: By simulating actual harness installation with cable ties, it verifies that cables maintain signal integrity despite mechanical stresses.
- Quality Control in Cable Production: Enables manufacturers to evaluate cable robustness against compression forces caused by cable tie installation.
- Maintenance and Inspection Protocols: Provides a benchmark for assessing fiber optic cables installed in aircraft, detecting potential damage or attenuation issues resulting from harness assembly or repairs.
- Compliance and Certification: Supports compliance with aerospace industry requirements for fiber optic components used on aircraft, ensuring safety and performance standards are met.
Related Standards
EN 3745-517:2017 references and complements several important aerospace optical cable standards:
- EN 2591-100: General test methods for electrical and optical connections in aerospace.
- EN 3745-201: Visual examination procedures for optical fibers and cables in aircraft use.
- EN 3745-301: Methods for measuring attenuation in aerospace optical fibers and cables.
- EN 4056-003: Product standard for plastic cable ties used in harness assemblies across aerospace applications.
Together, these standards provide an integrated framework for testing, quality assurance, and certification of optical fiber cables and related components in aerospace systems.
Keywords: EN 3745-517:2017, aerospace optical cables, optical fiber attenuation test, cable tie clamping test, aircraft harness standards, optical cable testing methods, aerospace cable quality, fiber optic attenuation variation, EN standards aerospace, cable tie testing aerospace
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Frequently Asked Questions
EN 3745-517:2017 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 517: Cable tie clamping test". This standard covers: This European Standard specifies a method of determining the attenuation variation of an optical cable when clamped to a mandrel with cable ties, simulating the condition in an installed harness.
This European Standard specifies a method of determining the attenuation variation of an optical cable when clamped to a mandrel with cable ties, simulating the condition in an installed harness.
EN 3745-517:2017 is classified under the following ICS (International Classification for Standards) categories: 49.090 - On-board equipment and instruments. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3745-517:2017 has the following relationships with other standards: It is inter standard links to EN 3745-517:2012, EN 2591-100:2024, EN 4056-003:2019, EN 3745-201:2002, EN 3745-301:2012, EN 4641-102:2009, EN 4641-301:2011, EN 4641-401:2024, EN 4641-103:2025, EN 4641-102:2025, FprEN 3745. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3745-517:2017 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil 517: Klemmprüfung mit KabelbindernSérie aérospatiale - Fibres et câbles optiques à usage aéronautique - Méthodes d'essais - Partie 517: Essai de serrage par colliers de frettageAerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 517: Cable tie clamping test49.060Aerospace electric equipment and systems33.180.10Fibres and cablesICS:Ta slovenski standard je istoveten z:EN 3745-517:2017SIST EN 3745-517:2017en,fr,de01-maj-2017SIST EN 3745-517:2017SLOVENSKI
STANDARDSIST EN 3745-517:20121DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3745-517
March
t r s y ICS
v {ä r { r Supersedes EN
u y v wæ w s yã t r s tEnglish Version
Aerospace series æ Fibres and cablesá opticalá aircraft use æ Test methods æ Part
w s yã Cable tie clamping test Série aérospatiale æ Fibres et câbles optiques à usage aéronautique æ Méthodes d 5essais æ Partie
w s yã Essai de serrage par colliers de frettage
Luftæ und Raumfahrt æ Faseroptische Leitungen für Luftfahrzeuge æ Prüfverfahren æ Teil
w s yã Klemmprüfung mit Kabelbindern This European Standard was approved by CEN on
t { July
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
u y v wæ w s yã t r s y ESIST EN 3745-517:2017
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