EN 4057-307:2006

Aerospace series - Cable ties for harnesses - Test methods - Part 307: Resistance to ultra violet radiation

This standard determines test methods for the resistance of cable ties for harnesses to the exposure to ultra violet radiation.

Luft- und Raumfahrt - Befestigungsbänder für Leitungsbündel - Prüfverfahren - Teil 307: UV-Beständigkeit

Diese Norm legt die Prüfverfahren für die Ermittlung der Beständigkeit von Befestigungsbändern für Leitungs¬bündel gegen ultraviolette Strahlung fest.

Série aérospatiale - Frettes de câblage pour harnais - Méthodes d'essais - Partie 307 : Résistance aux radiations des ultra-violet

Aeronavtika - Kabelske spojke za vezalno pasovje - Preskusne metode - 307. del: Odpornost proti ultravijoličnemu sevanju

General Information

• Status: Published
• Publication Date: 12-Dec-2006
• Withdrawal Date: 29-Jun-2007
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 01-Jun-2017
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 4057-307:2009 - Aerospace series - Cable ties for harnesses - Test methods - Part 307: Resistance to ultra violet radiation

Overview

EN 4057-307:2006 (CEN) defines test methods to determine the resistance of aerospace cable ties for harnesses to exposure to ultraviolet (UV) radiation. The standard is part of the Aerospace series of cable-tie standards and references EN 4056-001 and ASTM G53-88 (fluorescent UV‑condensation type) for apparatus and related requirements. It provides a repeatable laboratory procedure for assessing material behaviour after controlled UV cycling to support durability assessment, material selection and product specification.

Key Topics

• Scope: Establishes test methods for evaluating resistance to UV radiation for cable ties used in harnesses.
• Normative references: EN 4056-001 (terms and definitions) and ASTM G53-88 for test apparatus and exposure conditions.
• Apparatus: Test chamber as specified in ASTM G53-88 using UV‑B tubes.
• Specimen preparation:
  • Cut a length from the parallel portion of the cable tie (minimum 75 mm).
  • Prepare a minimum of 20 specimens; half mounted so the outer surface faces the test environment.
  • Flexible specimens may be attached to an aluminium or non‑corrosive heat‑conductive backing panel for rigidity.
• Test cycle (as specified in the standard):
  • UV periods: 8 h at (55 ± 3) °C
  • Humidity periods: 4 h at (40 ± 3) °C
  • Cycle duration and a 1 000 h total cycling period are used prior to post‑exposure conditioning and testing.
• Conditioning and test method:
  • After exposure, specimens are conditioned for 24 h in a chamber at the specified temperature and relative humidity before testing.
  • Tensile testing parameters: gauge length (25 ± 1) mm, jaw separation speed (25 ± 2,5) mm/min; elongation measured to 1 % accuracy.
  • Seven aged and seven unaged specimens are pulled; averages are calculated excluding the highest and lowest values, then percent change between groups is calculated.
• Requirements: The maximum allowable change in average elongation at break between aged and unaged groups is to be specified in the applicable product standard.

Applications

This test method is used by:

• Manufacturers and suppliers for material selection and quality control of cable ties intended for aerospace harnesses.
• Design and engineering teams assessing long‑term durability of harness fastening components in UV‑exposed environments.
• Procurement and certification processes that require standardized test evidence of UV resistance and performance consistency.

Practical value: EN 4057-307:2006 delivers a reproducible procedure to compare products, validate material formulations, and inform specifications without prescribing pass/fail limits (these are set in the product standard).

Related Standards

• EN 4056-001 - Aerospace series: Cable ties for harnesses - Part 001: Technical specification (terms and definitions referenced).
• ASTM G53-88 - Standard practice for operating fluorescent UV‑condensation type exposure apparatus (referenced for apparatus and exposure conditions).

For implementation, consult the full EN 4057-307:2006 text and the cited normative references to ensure correct apparatus setup, specimen preparation and data evaluation according to the standard.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Befestigungsbänder für Leitungsbündel - Prüfverfahren - Teil 307: UV-BeständigkeitSérie aérospatiale - Frettes de câblage pour harnais - Méthodes d'essais - Partie 307 : Résistance aux radiations des ultra-violetAerospace series - Cable ties for harnesses - Test methods - Part 307: Resistance to ultra violet radiation49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4057-307:2006SIST EN 4057-307:2009en,de01-junij-2009SIST EN 4057-307:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4057-307December 2006ICS 49.060 English VersionAerospace series - Cable ties for harnesses - Test methods -Part 307: Resistance to ultra violet radiationSérie aérospatiale - Frettes de câblage pour harnais -Méthodes d'essais - Partie 307 : Résistance aux radiationsdes ultra-violetLuft- und Raumfahrt - Befestigungsbänder fürLeitungsbündel - Prüfverfahren - Teil 307: UV-BeständigkeitThis European Standard was approved by CEN on 28 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4057-307:2006: ESIST EN 4057-307:2009
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