EN 3745-411:2018
(Main)Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 411: Resistance to fluids
Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 411: Resistance to fluids
This European Standard specifies two methods of determining the fluid resistance of a fibre optic interconnection device.
It shall be used together with EN 3745-100 and EN 3909.
Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil 411: Beständigkeit gegen Flüssigkeiten
Série aérospatiale - Câbles et fibres optiques à usage aéronautique - Méthodes d'essais - Partie 411 : Résistance aux fluides
La présente Norme européenne spécifie deux méthodes pour déterminer la résistance aux fluides des
dispositifs de connexion optique à fibre.
Elle doit être utilisée conjointement avec l’EN 3745-100 et l’EN 3909.
Aeronavtika - Optična vlakna in kabli za uporabo v zračnih plovilih - Preskusne metode - 411. del: Odpornost proti tekočinam
Ta evropski standard določa metodi za ugotavljanje odpornosti optičnih spojnih elementov proti tekočinam.
Uporabljati ga je treba s standardoma EN 3745-100 in EN 3909.
General Information
Relations
Overview
EN 3745-411:2018 - "Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 411: Resistance to fluids" is a European Standard published by CEN that defines laboratory methods to determine the fluid resistance of fibre optic interconnection devices and cables for aircraft use. It is intended to be used together with EN 3745-100 (general test rules) and EN 3909 (test fluids and methods).
Key topics and technical requirements
- Two test methods
- Method 1 - Occasional contamination: Simulates accidental, short-term exposure (dip or spray, drainage and controlled oven cure cycles). Used where contamination is incidental.
- Method 2 - Extended contamination: Simulates prolonged or immersion exposure (full immersion, extended high-temperature exposure). Used for components likely to experience sustained fluid contact.
- Test fluids (from EN 3909): mandatory fluids include representative fuels, hydraulic fluids, oils, solvents/cleaning fluids, de-icers, detergents and sullage. Examples: gasoline, kerosene, phosphate and silicone hydraulic fluids, mineral and synthetic oils, isopropanol/ethanol/MEK cleaning solvents, potassium acetate and ethylene glycol de-icers.
- Specimen preparation: Cable specimens (typically ≥1 m) are inspected, measured (EN 3745-203), wound on a mandrel, and conditioned per the standard before testing.
- Cleaning procedures: Initial and intermediate cleaning rules are specified to avoid introducing contaminants or synergistic effects when sequential fluids are applied.
- Final examination and pass/fail criteria: Visual inspection (EN 3745-201), optional cleaning to aid inspection, and mechanical abrasion testing (EN 3745-503) where specified. Minimum requirements include:
- Component markings remain legible
- Cable insulation shows no cracking or crazing
- Cable diameter does not swell by more than 10%
- Normative references: EN 3745-100, EN 3745-201, EN 3745-203, EN 3745-503, and EN 3909 are integral to correct application.
Applications and users
- Useful for aerospace OEMs, wire and cable manufacturers, electrical/avionics design engineers, test laboratories, certification authorities and procurement teams who need to:
- Qualify optical fibre cables and interconnection devices for use in aircraft environments
- Select materials and finishes resistant to aviation fluids and ground/flight chemicals
- Define acceptance criteria for supplier testing and maintenance procedures
- Demonstrate compliance during type approval or procurement
Related standards
- EN 3745-100 - General test methods for aerospace optical fibres and cables
- EN 3909 - Test fluids and test methods for electrical and optical components
- EN 3745-201 - Visual examination
- EN 3745-203 - Cable dimensions
- EN 3745-503 - Scrape abrasion
This standard ensures consistent, repeatable evaluation of fluid resistance for aerospace optical components, supporting reliability and safety in aircraft electrical and avionic systems.
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 411: Beständigkeit gegen FlüssigkeitenSérie aérospatiale - Fibres et câbles optiques à usage aéronautique - Méthodes d'essais - Partie 411 : Résistance aux fluidesAerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 411: Resistance to fluids49.060Aerospace electric equipment and systems33.180.10Fibres and cablesICS:Ta slovenski standard je istoveten z:EN 3745-411:2018SIST EN 3745-411:2019en,fr,de01-februar-2019SIST EN 3745-411:2019SLOVENSKI
STANDARDSIST EN 3745-411:20071DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3745-411
November
t r s z ICS
v {ä r { r Supersedes EN
u y v wæ v s sã t r r yEnglish Version
Aerospace series æ Fibres and cablesá opticalá aircraft use æ Test methods æ Part
v s sã Resistance to fluids Série aérospatiale æ Câbles et fibres optiques à usage aéronautique æ Méthodes d 5essais æ Partie
v s s ã Résistance aux fluides
Luftæ und Raumfahrt æ Faseroptische Leitungen für Luftfahrzeuge æ Prüfverfahren æ Teil
v s sã Beständigkeit gegen Flüssigkeiten This European Standard was approved by CEN on
t March
t r s zä
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:
Rue de la Science 23,
B-1040 Brussels
t r s z 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 v s sã t r s z ESIST EN 3745-411:2019
...
Frequently Asked Questions
EN 3745-411:2018 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 411: Resistance to fluids". This standard covers: This European Standard specifies two methods of determining the fluid resistance of a fibre optic interconnection device. It shall be used together with EN 3745-100 and EN 3909.
This European Standard specifies two methods of determining the fluid resistance of a fibre optic interconnection device. It shall be used together with EN 3745-100 and EN 3909.
EN 3745-411:2018 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 3745-411:2018 has the following relationships with other standards: It is inter standard links to EN 3745-411:2007, prEN 3745. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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