SIST EN 2591-218:2004

Aerospace series - Elements of electrical and optical connection - Test methods - Part 218: Ageing of terminal lugs and in-line splices by temperature and current cycling

This standard specifies a method for ageing terminal lugs and in-line splices by temperature and current cycling.
It shall be used together with EN 2591-100.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 218: Alterung von Kabelschuhen und Stoßverbindern durch zyklische Temperatur- und Strombelastung

Diese Norm legt ein Verfahren zur Alterung von Kabelschuhen und Stoßverbindern durch zyklische Temperatur- und Strombelastung fest.
Sie ist in Verbindung mit EN 2591-100 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 218: Vieillissement des cosses et des prolongateurs par cyclage en température et en courant

Aerospace series - Elements of electrical and optical connection - Test methods - Part 218: Ageing of terminal lugs and in-line splices by temperature and current cycling

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 2591-218:2002 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 218: Ageing of terminal lugs and in-line splices by temperature and current cycling

Overview

EN 2591-218:2002 specifies a standardized method to age terminal lugs and in-line splices by controlled temperature and current cycling. It is part of the aerospace series of connection element test methods and shall be used together with EN 2591-100 (general test provisions). The procedure addresses specimen preparation, cycle severity, temperature/current profiles, and acceptance criteria to assess long-term electrical performance in aerospace wiring systems.

Key Topics

• Scope and purpose: Provides a reproducible ageing procedure for crimped terminal lugs and in-line splices to evaluate durability under thermal and electrical stress.
• Specimen preparation: Specimens must be fitted with normal accessories, wired per the applicable technical specification. The technical specification shall define number of specimens, cable type, wiring, cycling current and measurement requirements.
• Severity and cycles:
  • For crimped terminations on copper cable: number of cycles depends on operating temperature per the product standard:
    • Operating temperature ≤ 135 °C → 750 cycles
    • Operating temperature > 135 °C → 1 500 cycles
  • For aluminium cable: all specimens are subjected to 1 500 cycles.
• Cycling profile:
  • Increase d.c. voltage/current until the conductor reaches the ageing temperature.
  • Maintain the higher temperature for 15 minutes.
  • Lower voltage to revert conductor temperature to ≤ 30 °C.
  • Maintain the lower temperature for 5 minutes.
  • The cycling current is determined for each cable type.
• Measurements & acceptance:
  • Voltage-drop measurements are performed in accordance with EN 2591-217.
  • For copper terminations the voltage drop after ageing shall not exceed values specified in the technical specification. A Dmax limit is defined as 20% of the value measured at 500 or 1 000 cycles, depending on severity.
  • For aluminium terminations, voltage-drop is measured on specified intermediate cycles (1, 50, 100, 150, 300, 500, 750, 1 000, 1 200, 1 300, 1 400 and 1 500) and the terminal lug/splice temperature must remain lower than the cable temperature.
• Safety: The test uses elevated voltages and currents and is hazardous; appropriate safeguards and trained personnel are required.

Applications

• Qualification and life‑testing of aerospace electrical connectors and splices
• Verification of crimp process integrity and long-term electrical continuity
• Support for component specification, procurement and maintenance planning
• Use in design validation where thermal and current cycling is a failure mode

Related Standards

• EN 2591-100 - Test methods: General (normative reference)
• EN 2591-217 - Voltage drop under specified current for terminal lugs and in-line splices (measurement method)

This standard supports reliable assessment of terminal lug and inline splice durability under realistic thermal and electrical stress for aerospace wiring systems.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Elements of electrical and optical connection - Test methods - Part 218: Ageing of terminal lugs and in-line splices by temperature and current cyclingLuft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 218: Alterung von Kabelschuhen und Stoßverbindern durch zyklische Temperatur- und StrombelastungSérie aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 218: Vieillissement des cosses et des prolongateurs par cyclage en température et en courantAerospace series - Elements of electrical and optical connection - Test methods - Part 218: Ageing of terminal lugs and in-line splices by temperature and current cycling49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2591-218:2002SIST EN 2591-218:2004en01-maj-2004SIST EN 2591-218:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2591-218June 2002ICS 49.060English versionAerospace series - Elements of electrical and optical connection- Test methods - Part 218: Ageing of terminal lugs and in-linesplices by temperature and current cyclingSérie aérospatiale - Organes de connexion électrique etoptique - Méthodes d'essais - Partie 218: Vieillissementdes cosses et des prolongateurs par cyclage entempérature et en courantLuft- und Raumfahrt - Elektrische und optischeVerbindungselemente - Prüfverfahren - Teil 218: Alterungvon Kabelschuhen und Stoßverbindern durch zyklischeTemperatur- und StrombelastungThis European Standard was approved by CEN on 8 February 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 2591-218:2002 ESIST EN 2591-218:2004
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