EN 6059-502:2009
(Main)Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 502: Resistance to electrical arcs
Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 502: Resistance to electrical arcs
This European Standard specifies a method of assessing the behaviour of protection sleeves or conduits subject to an external electric arc, ever at 115 Vac or 230 Vac 400 Hz.
This European Standard shall be used together with EN 6059-100.
The primary aim of this test is to produce, in a controlled fashion, electric arcs at the immediate vicinity of a protection sleeve or conduit and to examine possible consequences on cables inside this protection, which are supposed to be maintained in a safe condition. These electric arcs are representative of those, which may occur in service when a typical cable bundle is severely damaged.
In order to optimize thickness and mass of such protection, it is necessary to associate a current limit In to each sleeves or conduits construction.
Two levels of prospective fault current are specified for all protection sizes.
Luft- und Raumfahrt - Elektrische Leitungen, Installation - Schutzschläuche - Prüfverfahren - Teil 502: Lichtbogenfestigkeit
Diese Norm legt ein Verfahren zur Beurteilung des Verhaltens von Schutzschläuchen oder -rohren gegenüber
einem von außen einwirkenden elektrischen Lichtbogen bei jeweils 115 V oder 230 V Wechselspannung
400 Hz fest.
Diese Norm muss in Verbindung mit EN 6059-100 angewendet werden.
Der Hauptzweck dieser Prüfung besteht darin, in unmittelbarer Nähe eines Schutzschlauches oder -rohres auf
geregelte Weise Lichtbögen zu erzeugen und mögliche Auswirkungen auf die innerhalb dieses Schutzes
befindlichen Leitungen zu untersuchen, die in einem sicheren Zustand beibehalten werden sollen. Diese Lichtbögen
sind repräsentativ für die Lichtbögen, die während des Betriebes auftreten können, wenn ein typisches
Leitungsbündel stark beschädigt ist.
Um die Dicke und Masse eines derartigen Schutzes zu optimieren, ist es erforderlich, jedem Aufbau von
Schutzschläuchen oder -rohren einen Grenzstrom In zuzuordnen.
Zwei Werte für einen unbeeinflussten Fehlerstrom wurden für alle Größen von Schutzschläuchen/-rohren festgelegt.
Série aérospatiale - Câbles électriques, installation - Gaines de protection - Méthodes d'essais - Partie 502: Résistance aux arcs électriques
Aeronavtika - Električni kabli, namestitev - Zaščitne obojke - Preskusne metode - 502. del: Odpornost proti električnim oblokom
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2009
$HURQDYWLND(OHNWULþQLNDEOLQDPHVWLWHY=DãþLWQHRERMNH3UHVNXVQHPHWRGH
GHO 2GSRUQRVWSURWLHOHNWULþQLPREORNRP
Aerospace series - Electrical cables, installation - Protection sleeves - Test methods -
Part 502: Resistance to electrical arcs
Luft- und Raumfahrt - Elektrische Leitungen, Installation - Schutzschläuche -
Prüfverfahren - Teil 502: Lichtbogenfestigkeit
Série aérospatiale - Câbles électriques, installation - Gaines de protection - Méthodes
d'essais - Partie 502: Résistance aux arcs électriques
Ta slovenski standard je istoveten z: EN 6059-502:2009
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 6059-502
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2009
ICS 49.060
English Version
Aerospace series - Electrical cables, installation - Protection
sleeves - Test methods - Part 502: Resistance to electrical arcs
Série aérospatiale - Câbles électriques, installation - Luft- und Raumfahrt - Elektrische Leitungen, Installation -
Gaines de protection - Méthodes d'essais - Partie 502: Schutzschläuche - Prüfverfahren - Teil 502:
Résistance aux arcs électriques Lichtbogenfestigkeit
This European Standard was approved by CEN on 30 July 2009.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 6059-502:2009: E
worldwide for CEN national Members.
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Specimen requirements .4
4 Definition and preparation of specimen .5
5 Apparatus .9
6 Method . 12
7 Requirements . 13
Foreword
This document (EN 6059-502:2009) 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 March 2010, and conflicting national standards shall be withdrawn at
the latest by March 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies a method of assessing the behaviour of protection sleeves or conduits
subject to an external electric arc, ever at 115 Vac or 230 Vac 400 Hz.
This European Standard shall be used together with EN 6059-100.
The primary aim of this test is to produce, in a controlled fashion, electric arcs at the immediate vicinity of a
protection sleeve or conduit and to examine possible consequences on cables inside this protection, which
are supposed to be maintained in a safe condition. These electric arcs are representative of those, which may
occur in service when a typical cable bundle is severely damaged.
In order to optimize thickness and mass of such protection, it is necessary to associate a current limit In to
each sleeves or conduits construction.
Two levels of prospective fault current are specified for all protection sizes.
2 Normative references
The following referenced documents are indispensable for the application 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 2350, Aerospace series — Circuit breakers — Technical specification.
EN 2267-010, Aerospace series — Cables, electrical, for general purpose — Operating temperatures between
− 55 °C and 260 °C — Part 010: DR family, single UV laser printable — Product standard.
EN 3475-302, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 302: Voltage proof
test.
EN 6059-100, Aerospace series — Electrical cables, installation — Protection sleeves — Test methods —
1)
Part 100: General.
EN 6059-501, Aerospace series — Electrical cables, installation — Protection sleeves — Test methods —
1)
Part 501: Voltage proof test.
2)
A-A-52083, Specification for tape lacing and tying.
3 Specimen requirements
Protection sleeves or conduits to be tested shall be of traceable origin and, unless otherwise specified, shall
have passed the voltage proof test (EN 6059-501) as defined in the concerned product standard.
1) Published as ASD Prestandard at the date of publication of this standard.
2) Published by Customer Service, Defense Printing Service Detachment Office, 700 Robbins Ave, Building 4D,
Philadelphia PA 19111-5094 USA.
Unless otherwise specified in the concerned technical product standard, at least one size of protection sleeve
per sleeve thickness or construction type (if different from one size to another) shall be assessed.
If possible for each thickness or construction type the test must be performed on a sample having the
minimum authorized thickness or minimum authorized mass.
4 Definition and preparation of specimen
4.1 Protected bundle (bundle P)
Bundles P are made of arc tracking resistant cables, typically from EN 2267-010 product standard unless
otherwise specified in the concerned protection sleeves product standard, with bundle external protection to
be tested.
The cable bundle outer diameter shall be as closed as possible to the internal diameter of the protection to be
tested. This diameter is obtained:
with a full assembly of size 24 cables, or
with a central part in various cable types covered with a full and uniform layer of size 24 cables.
For open protection sleeves with an overlapping, in any case the overlap must be placed in front of the short
circuit area.
4.2 Aggressive bundle (bundle A)
4.2.1 Definition and constitution
Bundles A are made of 7 arc-tracking resistant cables, typically from EN 2267-010 product standard unless
otherwise specified in the concerned protection sleeves product standard, without bundle external protection.
The short circuit will be created on these bundles (see 4.3).
The cables gauge is chosen in Table 1, in accordance with the In limit specified for the protection sleeves.
Table 1 — Choice of cable gauge
In Amp.
3 5 7,5 10 10 15 20 25 50
CB ratings
Gauge 26 24 22 20 18 16 14 12 10
Circuit breaker used to protect these cables must be also in accordance with Table 1.
EXAMPLE If the sleeve must provide a 15 amp. protection, take gauge 16 cables to built the bundle with 15 amp.
CB ratings.
For information the diameter of the bundle will be three times the cable diameter.
4.2.2 Preparation
Cut seven separate lengths of approximately 0,5 m consecutively from one length of cable, and strip one of
the ends of insulation to permit electrical connection. Clean each length of cable with a clean cloth moistened
with propan-2-ol (isopropyl alcohol) fluid.
4.2.3 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 st
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