SIST EN 3475-402:2004

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 402: Shrinkage and delamination

This standard specifies a method of measuring the shrinkage and delamination of a finished cable.
It shall be used together with EN 3475-100.

Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrt, Verwendung - Prüfverfahren - Teil 402: Schrumpfen und Aufblättern

Diese Norm legt ein Verfahren zur Bestimmung des Schrumpfens und Aufblätterns einer fertigen Leitung fest.
Sie ist in Verbindung mit EN 3475-100 anzuwenden.

Série aérospatiale - Câbles électriques a usage aéronautique - Méthodes d'essai - Partie 402: Retrait et délamination

Cette norme définit une méthode pour mesurer le retrait et la délamination d'un câble terminé.
Elle doit être utilisée conjointement avec EN 3475-100.

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 402: Shrinkage and delamination

General Information

• Status: Published
• Publication Date: 30-Apr-2004
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I08 - Imaginarni 08
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-2004
• Due Date: 01-May-2004
• Completion Date: 01-May-2004
• Ref Project: EN 3475-402:2002 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 402: Shrinkage and delamination

Overview

EN 3475-402:2002 is a CEN/AECMA aerospace test method that specifies how to measure shrinkage and delamination of finished electrical cables for aircraft use. Intended to be used together with EN 3475-100 (general test methods), this standard defines specimen preparation, required apparatus and the pass/fail criteria for a controlled thermal conditioning test.

Key topics and requirements

• Scope: Measurement of shrinkage and delamination on finished aerospace cables; used in conjunction with EN 3475-100.
• Specimen preparation:
  • Take a 300 mm specimen from the finished cable.
  • Cut ends so the conductor is flush with the insulation; for shielded cables, ensure all conductors are in the same plane as the jacket at the two ends.
• Apparatus:
  • An air-circulating oven is required.
• Test method:
  • Place the specimen in the air-circulating oven for 6 hours at the temperature specified in the product standard (product standard defines the exact temperature).
  • After exposure, remove the specimen and return it to ambient temperature for inspection.
• Acceptance criteria:
  • Maximum allowable shrinkage at either end is defined by the applicable product standard (measured as the length of any bare part of conductor(s)); shrinkage must not exceed that value.
  • Any debonding or delamination of layers-either along the insulation or at the ends-is considered a defect.

Applications and who uses it

• Aerospace cable manufacturers - for product qualification and routine production quality control of aircraft electrical cables.
• Quality assurance laboratories - to perform standardized shrinkage and delamination testing during incoming inspection or type approval.
• Aerospace OEMs and certification bodies - to verify cable performance against specified product standards.
• Suppliers and maintenance organizations - to confirm long-term dimensional stability of installed cable assemblies after thermal exposure.

Practical value

• Ensures cable insulation and layer bonding integrity after thermal stress-critical for electrical reliability and safety in aircraft systems.
• Provides repeatable, auditable test steps (specimen size, oven type, exposure time) that link directly to product-specific limits defined in the product standard.

Related standards

• EN 3475-100 - Aerospace series: Cables, electrical, aircraft use - Test methods - Part 100: General (normative reference).

Keywords: EN 3475-402:2002, shrinkage and delamination, aerospace cables, test methods, aircraft electrical cables, cable shrinkage test, delamination test, EN 3475-100.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Cables, electrical, aircraft use - Test methods - Part 402: Shrinkage and delaminationLuft- und Raumfahrt - Elektrische Leitungen für Luftfahrt, Verwendung - Prüfverfahren - Teil 402: Schrumpfen und AufblätternSérie aérospatiale - Câbles électriques a usage aéronautique - Méthodes d'essai - Partie 402: Retrait et délaminationAerospace series - Cables, electrical, aircraft use - Test methods - Part 402: Shrinkage and delamination49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 3475-402:2002SIST EN 3475-402:2004en01-maj-2004SIST EN 3475-402:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3475-402January 2002ICS 49.060English versionAerospace series - Cables, electrical, aircraft use - Testmethods - Part 402: Shrinkage and delaminationSérie aérospatiale - Câbles électriques à usageaéronautique - Méthodes d'essai - Partie 402: Retrait etdélaminationLuft- und Raumfahrt - Elektrische Leitungen für Luftfahrt,Verwendung - Prüfverfahren - Teil 402: Schrumpfen undAufblätternThis European Standard was approved by CEN on 6 August 2001.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 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3475-402:2002 ESIST EN 3475-402:2004
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