SIST EN 3745-505:2018

Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 505: Cable tensile strength

This European Standard specifies a method for measuring the tensile properties of a fibre optic cable.
It shall be used together with EN 3745-100.

Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil 505: Zugfestigkeit

Diese Europäische Norm legt ein Verfahren zur Messung der Zugeigenschaften von faseroptischen Leitungen
fest.
Sie ist in Verbindung mit EN 3745-100 anzuwenden.

Série aérospatiale - Fibres et câbles optiques à usage aéronautique - Méthodes d'essais - Partie 505: Tenue en traction

Aeronavtika - Optična vlakna in kabli za uporabo v zračnih plovilih - Preskusne metode - 505. del: Natezna trdnost kablov

Ta evropski standard določa metodo za merjenje natezne trdnosti optičnih kablov.
Uporabljati ga je treba skupaj s standardom EN 3745-100.

General Information

• Status: Published
• Publication Date: 04-Sep-2018
• ICS: 33.180.10 - Fibres and cables
• ICS: 49.090 - On-board equipment and instruments
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Aug-2018
• Due Date: 08-Oct-2018
• Completion Date: 05-Sep-2018
• Ref Project: EN 3745-505:2018 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 505: Cable tensile strength

Relations

• Replaces: SIST EN 3745-505:2007 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 505: Cable tensile strength
• Effective Date: 01-Aug-2018
• Revised: oSIST prEN 3745-100:2025 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 100: General
• Effective Date: 15-Oct-2025
• Revised: SIST EN 3745-505:2007 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 505: Cable tensile strength
• Effective Date: 10-Aug-2016

Overview

EN 3745-505:2018 - Aerospace series: Fibres and cables, optical, aircraft use - Test methods - Part 505: Cable tensile strength is a CEN European Standard that specifies a reproducible method for measuring the tensile properties of fibre optic cables intended for aircraft use. It is intended to be used together with EN 3745-100 (General) and references EN 60794 and other EN 3745 parts for complementary tests (visual, attenuation).

Key topics and requirements

• Scope: Defines procedures to determine cable tensile strength and related optical/mechanical effects under tensile load.
• Specimen preparation:
  • Prepare samples per EN 60794, Method E1.
  • Stabilize specimens for 24 hours at standard test conditions defined in EN 3745-100 when not already at those conditions.
  • Measure attenuation before tensile testing (EN 3745-301 method C).
  • Cleaning: UV-curable acrylic-coated fibres may be cleaned with manufacturer-recommended agents; avoid chlorine-based cleaners.
• Apparatus:
  • Attenuation test setup (EN 3745-301).
  • Tensile test apparatus per EN 60794 Method E1 for Method A.
  • Tensile tester with elongation accuracy 1% for Method B.
• Test methods:
  • Method A: Uses a transfer device and chuck drum; performed in accordance with EN 60794 Method E1. Suitable for long sample lengths (sample length can be >100 m).
  • Method B: Uses a clamping device; cable pulled between two mandrels (mandrel diameter ≥ 50 mm). Initial length between mandrels (250 ± 1) mm, pulling speed (50 ± 10) mm/min, at least three turns on each mandrel. Sample length can be ≈5 m.
• Final measurements and outputs (referenced to product standard):
  • Visual examination (EN 3745-201)
  • Attenuation changes (before/after, at maximum tensile rating)
  • Maximum recorded fibre strain at maximum tensile rating (Method A)
  • Mechanical characteristics: maximum load to optical discontinuity; breaking load for the complete cable

Applications

• Qualification and type approval of aircraft fibre optic cables.
• Incoming inspection and production quality control for aerospace cable manufacturers.
• Test procedures for design validation, maintenance planning, and certification evidence where tensile performance affects optical continuity.
• Used by aerospace test laboratories, OEMs, suppliers, and certification authorities.

Who should use this standard

• Aerospace fibre optic cable manufacturers and designers
• Test and calibration laboratories
• Aircraft systems engineers and QA/acceptance teams
• Regulatory and certification bodies evaluating cable mechanical/optical integrity

Related standards

• EN 3745-100 (General)
• EN 3745-201 (Visual examination)
• EN 3745-301 (Attenuation)
• EN 60794 (Optical fibre cables - Method E1 referenced)

Keywords: EN 3745-505:2018, cable tensile strength, fibre optic cable, aerospace series, test methods, EN 3745-100, EN 60794, attenuation, tensile testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2018
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SIST EN 3745-505:2007
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Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 505:
Cable tensile strength
Luft- und Raumfahrt - Faseroptische Leitungen für Luftfahrzeuge - Prüfverfahren - Teil
505: Zugfestigkeit
Série aérospatiale - Fibres et câbles optiques à usage aéronautique - Méthodes d'essais
- Partie 505: Tenue en traction
Ta slovenski standard je istoveten z: EN 3745-505:2018
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
49.090 2SUHPDLQLQVWUXPHQWLY On-board equipment and
]UDþQLKLQYHVROMVNLKSORYLOLK instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3745-505
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2018
EUROPÄISCHE NORM
ICS 49.090 Supersedes EN 3745-505:2007
English Version
Aerospace series - Fibres and cables, optical, aircraft use -
Test methods - Part 505: Cable tensile strength
Série aérospatiale - Fibres et câbles optiques à usage Luft- und Raumfahrt - Faseroptische Leitungen für
aéronautique - Méthodes d'essais - Partie 505: Tenue Luftfahrzeuge - Prüfverfahren - Teil 505: Zugfestigkeit
en traction
This European Standard was approved by CEN on 27 November 2017.

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 CEN-CENELEC 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3745-505:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Preparation of specimens . 4
5 Apparatus. 5
6 Method . 5

European foreword
This document (EN 3745-505:2018) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
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
ASD, prior to its presentation to CEN.
This European Standard shall
...