Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 309: Fire resistance when fitted on a cable bundle

This European Standard specifies a method of testing the fire resistance of wire harnesses protected with fire resistant sleeve for aerospace application.

Luft- und Raumfahrt - Elektrische Leitungen, Installation - Schutzschläuche - Prüfverfahren - Teil 309: Feuerbeständigkeit wenn um Kabelbündel installiert

Série aérospatiale - Câbles électriques, installation - Gaines de protection - Méthodes d'essais - Partie 309 : Résistance au feu une fois installée sur un toron de câbles

La présente Norme européenne spécifie une méthode d’essai pour vérifier la résistance au feu des harnais de câbles protégés par des gaines résistantes au feu pour application aérospatiale.

Aeronavtika - Električni kabli, namestitev - Zaščitne obojke - Preskusne metode - 309. del: Požarna odpornost pri vgradnji kablov

Ta evropski standard določa metodo preskušanja požarne odpornosti žičnih snopov, zaščitenih z ognjevarno obojko, ki se uporabljajo v aeronavtiki.

General Information

Status
Published
Publication Date
23-Sep-2018
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
31-Aug-2018
Due Date
05-Nov-2018
Completion Date
24-Sep-2018

Overview

EN 6059-309:2018 is a European aerospace test method for evaluating fire resistance of wire harnesses fitted with fire‑resistant protection sleeves on a cable bundle. Published by CEN/ASD‑STAN, this part of the EN 6059 series defines specimen composition, test apparatus and procedures to simulate combined flame and vibration exposure typical of aircraft fire scenarios. The standard is used to verify that protected harnesses maintain electrical insulation and continuity under fire conditions when installed on a cable bundle.

Key topics and technical requirements

  • Scope: Method to test wire harnesses protected by an external fire‑resistant envelope when installed on a cable bundle.
  • Specimen composition:
    • Standard bundle (Type A) built from AWG24 twisted pairs and jacketed shielded twisted pairs; diameter ≤ 10 mm.
    • Other bundle types (B, C, D) for larger diameters, specific cable layouts or shields.
    • Equipotentials are defined and conductors of the same equipotential are short‑circuited at the specimen end.
  • Conditioning (fluid contamination):
    • Soak center 300 mm five times with test fluid (kerosene, phosphate‑based hydraulic fluid, synthetic lubricant) spaced 10 min apart; rest 16–24 h before testing (EN 3909 fluids).
  • Apparatus and environment:
    • Burner: ISO 2685 6‑inch gas burner; specimen exposed length 150 mm.
    • Flame temperature: 1 100 °C ± 80 °C measured 75 mm above burner; heat flux ~116 ± 10 kW/m².
    • Fixture: specimen 70–80 mm above burner; vibratory frame perpendicular to cable axis at (30 ± 5) Hz, minimum 4 g acceleration.
  • Test procedure and measurements:
    • Continuous sequence measuring insulation resistance between predefined equipotentials (five measurements per sequence) repeated during entire test; sequence time < 2.5 s.
    • Test voltage: (60 ± 10) V; measurement range 1 kΩ to 100 MΩ; max short‑circuit current 10 A.
    • Test durations: 5 minutes for fire‑resistant harnesses, 15 minutes for fire‑proof harnesses.
  • Pass criteria:
    • Insulation resistance curves (time vs. resistance) - all points must remain above 10 kΩ for the specified duration.
    • Electrical continuity must be verified before testing.

Applications and users

  • Aerospace OEMs and subcontractors qualifying wiring harness designs and protection sleeves.
  • Component and material suppliers validating sleeve performance under realistic fire and vibration conditions.
  • Test laboratories performing certification, acceptance, or comparative evaluations for aircraft installations.
  • Design and maintenance engineers assessing compliance for harnesses in designated aircraft fire zones.

Related standards

  • EN 3909 - Test fluids and test methods for electrical components (used for conditioning fluids).
  • ISO 2685:1998 - 6‑inch gas burner and environmental fire test procedure referenced for burner and heat‑flux requirements.

Keywords: EN 6059-309, fire resistance, aerospace, protection sleeve, electrical harness, cable bundle test, burner test, ISO 2685, EN 3909.

Standard

SIST EN 6059-309:2018

English language
10 pages
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Frequently Asked Questions

SIST EN 6059-309:2018 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 309: Fire resistance when fitted on a cable bundle". This standard covers: This European Standard specifies a method of testing the fire resistance of wire harnesses protected with fire resistant sleeve for aerospace application.

This European Standard specifies a method of testing the fire resistance of wire harnesses protected with fire resistant sleeve for aerospace application.

SIST EN 6059-309:2018 is classified under the following ICS (International Classification for Standards) categories: 13.220.40 - Ignitability and burning behaviour of materials and products; 29.060.20 - Cables; 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 6059-309:2018 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-november-2018
$HURQDYWLND(OHNWULþQLNDEOLQDPHVWLWHY=DãþLWQHRERMNH3UHVNXVQHPHWRGH
GHO3RåDUQDRGSRUQRVWSULYJUDGQMLNDEORY
Aerospace series - Electrical cables, installation - Protection sleeves - Test methods -
Part 309: Fire resistance when fitted on a cable bundle
Luft- und Raumfahrt - Elektrische Leitungen, Installation - Schutzschläuche -
Prüfverfahren - Teil 309: Feuerbeständigkeit wenn um Kabelbündel installiert
Série aérospatiale - Câbles électriques, installation - Gaines de protection - Méthodes
d'essais - Partie 309 : Résistance au feu une fois installée sur un toron de câbles
Ta slovenski standard je istoveten z: EN 6059-309:2018
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.060.20 Kabli Cables
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 6059-309
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 13.220.40; 49.060
English Version
Aerospace series - Electrical cables, installation -
Protection sleeves - Test methods - Part 309: Fire
resistance when fitted on a cable bundle
Série aérospatiale - Câbles électriques, installation - Luft- und Raumfahrt - Elektrische Leitungen,
Gaines de protection - Méthodes d'essais - Partie 309 : Installation - Schutzschläuche - Prüfverfahren - Teil
Résistance au feu une fois installée sur un toron des 309: Feuerbeständigkeit wenn um Kabelbündel
câbles installiert
This European Standard was approved by CEN on 6 November 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 6059-309:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Specimen composition . 4
5 Preparation of specimens . 5
6 Apparatus. 7
7 Method . 7
8 Procedure . 8
9 Requirements . 8
European foreword
This document (EN 6059-309:2018) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2019, and conflicting national standards shall
be withdrawn at the latest by February 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
1 Scope
This European Standard specifies a method of testing the fire resistance of wire harnesses protected with
fire resistant sleeve for aerospace application.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 3909, Aerospace series — Test fluids and test methods for electrical and optical components and
sub-assemblies
ISO 2685:1998, Aircraft — Environmental test procedure for airborne equipment — Resistance to fire in
designated fire zones
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedi
...

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