Aerospace series - Cables, electrical, aircraft use - Test methods - Part 413: Wrap back test

This standard specifies a method for detecting cracking, porosity and bad adhesion of the various layers of PTFE insulation tape on a finished cable.
It shall be used together with EN 3475-100.

Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren - Teil 413: Wickelprüfung

Diese Norm legt ein Verfahren zur Feststellung von Rissbildung, Porosität und mangelnder Haftung der einzelnen Lagen eines PTFE-Isolierbandes auf einer fertigen Leitung fest.
Sie ist in Verbindung mit EN 3475-100 anzuwenden.

Série aérospatiale - Câbles électriques à usage aéronautique - Méthodes d'essais - Partie 413: Contrôle par enroulement du scellement

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 413: Wrap back test

General Information

Status
Published
Publication Date
11-Jun-2002
Withdrawal Date
30-Dec-2002
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
30-Jun-2017
Completion Date
14-Apr-2025
Ref Project
SIST EN 3475-413:2004 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 413: Wrap back test

Overview

EN 3475-413:2002 - Wrap back test - is a CEN/AECMA aerospace test method for finished electrical cables with PTFE insulation tape. The standard defines a thermal-age test to detect cracking, porosity and poor adhesion between PTFE tape layers on aircraft cables. It is intended to be used together with EN 3475-100 (general test provisions) and references the voltage proof test in EN 3475-302.

Key topics and requirements

  • Scope: Detection of defects in PTFE insulation tape layers on finished aerospace cables.
  • Specimen preparation: Wind a sufficient length of completed cable around itself at least 10 turns so the cable serves as the mandrel.
  • Apparatus: Use an air-circulating oven capable of maintaining the required ageing temperature.
  • Ageing cycle: Expose the wrapped specimen to (310 ± 5) °C for 3 hours.
  • Cooling: After ageing, cool the specimen at ambient temperature for at least 1 hour.
  • Visual/physical requirement: After returning to ambient temperature the PTFE insulation shall show no cracking or debonding of layers along the insulation.
  • Electrical requirement: The specimen must pass the voltage proof test per EN 3475-302:
    • after being wound before ageing;
    • after ageing while still wound;
    • after being unwound and straightened.

Practical applications

  • Quality control and acceptance testing for aerospace electrical cable manufacturers using PTFE tape insulation.
  • Environmental/ageing qualification for finished aircraft cables where PTFE layered insulation is used.
  • Test laboratories performing certification and type-approval tests for aircraft wiring systems.
  • Maintenance and overhaul organizations verifying the integrity of PTFE-wrapped cables after exposure to elevated temperatures or service conditions.

Who should use this standard

  • Cable designers and manufacturers in the aerospace sector.
  • Test houses and accredited laboratories performing cable ageing and dielectric tests.
  • Quality assurance engineers and compliance officers responsible for aircraft electrical system reliability.
  • Procurement and certification teams needing documented test methods for supplier specification and acceptance.

Related standards

  • EN 3475-100 - General test methods and procedural rules (use together with EN 3475-413).
  • EN 3475-302 - Voltage proof test referenced as the electrical check required before/after ageing.

Keywords: EN 3475-413:2002, wrap back test, PTFE insulation, aerospace cables, test method, voltage proof test, cable ageing, cracking, porosity, adhesion.

Frequently Asked Questions

EN 3475-413:2002 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Cables, electrical, aircraft use - Test methods - Part 413: Wrap back test". This standard covers: This standard specifies a method for detecting cracking, porosity and bad adhesion of the various layers of PTFE insulation tape on a finished cable. It shall be used together with EN 3475-100.

This standard specifies a method for detecting cracking, porosity and bad adhesion of the various layers of PTFE insulation tape on a finished cable. It shall be used together with EN 3475-100.

EN 3475-413:2002 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 3475-413:2002 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

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 413: Wrap back testLuft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren - Teil 413: WickelprüfungSérie aérospatiale - Câbles électriques a usage aéronautique - Méthodes d'essais - Partie 413: Contrôle par enroulement du scellementAerospace series - Cables, electrical, aircraft use - Test methods - Part 413: Wrap back test49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 3475-413:2002SIST EN 3475-413:2004en01-maj-2004SIST EN 3475-413:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3475-413June 2002ICS 49.060English versionAerospace series - Cables, electrical, aircraft use - Testmethods - Part 413: Wrap back testSérie aérospatiale - Câbles électriques à usageaéronautique - Méthodes d'essais - Partie 413: Contrôle parenroulement du scellementLuft- und Raumfahrt - Elektrischen Leitungen für LuftfahrtVerwendung - Prüfverfahren - Teil 413: WickelprüfungThis European Standard was approved by CEN on 20 January 2002.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 3475-413:2002 ESIST EN 3475-413:2004
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