SIST EN 3475-605:2004

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test

This standard specifies a method for appraising the behaviour of cable insulation subjected to an electric arc initiated by a contaminating fluid.
This standard shall be used together with EN 3475-100.
The primary aim of this test is to produce, in a controlled fashion, failure effects which are representative of those which may occur in service when a typical cable bundle is damaged and subjected to aqueous fluid contamination such that electrical arcing occurs, between cables.
Six levels of prospective fault current have been specified for cable sizes 26 to 10.
Individual product standards shall require at least sizes 24, 20, 14 cable to be assessed.

Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren - Teil 605: Verhalten nach Kurzschluss, feucht

Diese Norm legt ein Verfahren zur Beurteilung des Verhaltens der Isolierung einer Leitung gegenüber einem elek-trischen Lichtbogen fest, der durch eine Verunreinigungsflüssigkeit erzeugt wird.
Diese Norm ist in Verbindung mit EN 3475-100 anzuwenden.
Der Hauptzweck dieser Prüfung besteht darin, auf geregelte Weise Fehlereffekte zu erzeugen, die repräsentativ sind für solche, die im Betrieb auftreten können, wenn ein typisches Leitungsbündel beschädigt und einer Verunreinigung durch eine wässrige Flüssigkeit ausgesetzt wird, so dass zwischen den Leitungen Lichtbogen entstehen.
Sechs prospektive Fehlerstromwerte wurden für die Leitungsgrößen 26 bis 10 festgelegt.
In den einzelnen Produktnormen muss zumindest die Prüfung der Leitungsgrößen 24, 20 und 14 vorgeschrieben werden.

Série aérospatiale - Câbles électriques a usage aéronautique - Méthodes d'essais - Partie 605: Essai de court-circuit humide

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test

General Information

• Status: Withdrawn
• Publication Date: 30-Apr-2004
• Withdrawal Date: 18-Aug-2010
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 09-Aug-2010
• Due Date: 01-Sep-2010
• Completion Date: 19-Aug-2010
• Ref Project: EN 3475-605:2002 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test

Relations

• Replaced By: SIST EN 3475-605:2010 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test
• Effective Date: 01-Oct-2010
• Replaced By: SIST EN 3475-605:2010 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test
• Effective Date: 08-Jun-2022

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 605: Wet short circuit testLuft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren - Teil 605: Verhalten nach Kurzschluss, feuchtSérie aérospatiale - Câbles électriques a usage aéronautique - Méthodes d'essais - Partie 605: Essai de court-circuit humideAerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 3475-605:2002SIST EN 3475-605:2004en01-maj-2004SIST EN 3475-605:2004SLOVENSKI
STANDARD



SIST EN 3475-605:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3475-605June 2002ICS 49.060English versionAerospace series - Cables, electrical, aircraft use - Testmethods - Part 605: Wet short circuit testSérie aérospatiale - Câbles électriques à usageaéronautique - Méthodes d'essais - Partie 605: Essai decourt-circuit humideLuft- und Raumfahrt - Elektrischen Leitungen für LuftfahrtVerwendung - Prüfverfahren - Teil 605: Verhalten nachKurzschluß, feuchtThis European Standard was approved by CEN on 21 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 3475-605:2002 ESIST EN 3475-605:2004



EN 3475-605:2002 (E)2ForewordThis document (EN 3475-605:2002) has been prepared by the European Association of AerospaceManufacturers (AECMA).After enquiries and votes carried out in accordance with the rules of this Association, this Standard hasreceived the approval of the National Associations and the Official Services of the member countries ofAECMA, prior to its presentation to CEN.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by December 2002, and conflicting national standards shall bewithdrawn at the latest by December 2002.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United KingdomSIST EN 3475-605:2004



EN 3475-605:2002 (E)31ScopeThis standard specifies a method for appraising the behaviour of cable insulation subjected to an electric arcinitiated by a contaminating fluid.This standard shall be used together with EN 3475-100.The primary aim of this test is to produce, in a controlled fashion, failure effects which are representative ofthose which may occur in service when a typical cable bundle is damaged and subjected to aqueous fluidcontamination such that electrical arcing occurs, between cables.Six levels of prospective fault current have been specified for cable sizes 26 to 10.Individual product standards shall require at least sizes 24, 20, 14 cable to be assessed.2Normative referencesThis European Standard incorporates by dated or undated reference provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies.EN 3475-100Aerospace series – Cables, electrical, aircraft use – Test methods – Part 100: GeneralEN 3475-302Aerospace series – Cables, electrical, aircraft use – Test methods – Part 302: Voltageproof testEN 2350Aerospace series – Circuit breakers – Technical specificationMIL-T-43435-BSpecification for tape lacing and tying
1)3Specimen requirementsCables to be tested shall be of traceable origin and shall have passed the high voltage dielectric test definedin the product standard.4Preparation of specimen4.1Cut seven separate lengths of approximately 0,5 m consecutively from one length of cable, andstrip one of the ends of insulation to permit electrical connection. Clean each length of cable with a cleancloth moistened with propan-2-ol fluid.¾¾¾¾¾¾276¾>1)Published by: Department of Defense, The Pentagon, Washington D.C. 20301 USA.SIST EN 3475-605:2004



EN 3475-605:2002 (E)44.2 Lay up the seven cables as follows:a)Form the cables in a six around one configuration as shown in figure 1.b)Ensure that all cables are straight and geometrically parallel, and restrained by ties such that they arein continuous contact at least within the test zone.c)Position the ties at 50 mm spacing toward the end of the specimen as shown in figure 2.NOTEThe tie material shall be PTFE glass lacing tape conforming to MIL-T-43435-B type IV, finish D size 3.A1-A2:phase AB1-B2:phase BC1-C2:phase CN :Neutral cableconnected to earthFigure 1 – Specimen ConfigurationFigure 2 – Test configurationDrop needle(10 ± 2) mmC2NC1B1A1B2A250 mmcable tie10°Drop needledrops10 mm to 20 mmends of the 7 cablesin the same planeSIST EN 3475-605:2004



EN 3475-605:2002 (E)55Apparatus5.1Electrical equipmentConnect the seven cables of the test sample within a circuit as shown in figure 3. This circuit shall have thefollowing requirements:a)The provision of adjustable levels of prospective fault currents for the six A, B and C cables.b)A three phase 208/115 V 400 Hz star (Y) connected supply shall be derived from a dedicated rotarymachine capable of sustaining the maximum prospective fault current given in table 1 for at least sufficie
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