kSIST FprEN 6059-502:2026

• Abstract:

  This document specifies a method of assessing the behaviour of protection sleeves or conduits subject to an external electric arc at 115 VAC, 800 Hz.; This document is used in conjunction 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 the protected cables bundle, which supposed to be maintained in a safe condition.; These electric arcs are representative of those which may occur in service when a typical adjacent cable bundle is severely damaged and leading to an electrical arc default.; In order to optimize thickness and mass of such protection, it is necessary to associate a nominal current limit In to each sleeves or conduits construction.; Two levels of prospective fault current are specified for all protection sizes.; NOTE This test requires specifics attentions and protections toward operator and personnel applying this test, refer to 6.2 for further details.

• Status: Not Published
• Public Enquiry End Date: 05-May-2024
• ICS: 29.060.20 - Cables
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 21-Jul-2026
• Due Date: 08-Sep-2026
• Completion Date: 22-Jul-2026
• Ref Project: FprEN 6059-502 - Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 502: Resistance to electrical arcs

• Revises: SIST EN 6059-502:2015 - Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 502: Resistance to electrical arcs
• Effective Date: 24-May-2023

Overview

kSIST FprEN 6059-502:2026 establishes standardized test methods to assess the resistance of electrical cable protection sleeves and conduits used in aerospace installations to electrical arcs. Published by SIST as part of the Aerospace series, this standard ensures consistent evaluation of protection products exposed to electric arc conditions at 115 VAC, 800 Hz (or 400 Hz as referenced in the document).

This standard is crucial for manufacturers, OEMs, and maintenance providers in the aerospace industry seeking to certify the arc resistance and performance reliability of their electrical cable protection systems. It complements EN 6059-100 by providing detailed methodologies for performance verification in simulated service conditions.

Key Topics

• Arc Resistance Testing: Specifies controlled procedures to expose protection sleeves to simulated electrical arc events representative of real-world aerospace service conditions.
• Test Configuration: Details specimen preparation, including cable types, bundle formation, and application of damage to simulate worst-case arc conditions.
• Electrical Test Circuits: Requirements for the electrical setup, simulating short-circuit and fault current scenarios using three-phase, 115 VAC systems.
• Safety Protocols: Emphasizes operator and laboratory safety during destructive arc testing, including shielding requirements and video monitoring.
• Performance Criteria: Defines pass/fail requirements, focusing on maintained insulation integrity, non-propagation of flames, and acceptable levels of physical damage post-test.
• Reporting Requirements: Specifies comprehensive documentation of test details, measurements, visual examinations, and results for traceability.

Applications

• Aerospace Manufacturing: Assists manufacturers in qualifying and certifying protection sleeves and conduits for use in aircraft electrical systems.
• Engineering Design: Enables engineers to select suitable protection materials based on demonstrable arc resistance and safety performance under fault conditions.
• Quality Assurance and Compliance: Supports quality assurance teams and regulatory compliance by providing standardized, repeatable test methods aligned with industry expectations.
• Product Development: Informs the development of lightweight, optimized cable protection solutions, by requiring demonstration of protection performance at specific fault currents.
• Maintenance and Safety: Offers guidelines for maintenance providers to verify the continued integrity and compliance of in-service cable protection components.

Related Standards

• EN 6059-100: Aerospace series - General test methods for electrical cables installation protection sleeves.
• EN 6059-501: Test methods regarding voltage proof performance of cable protection.
• EN 2267-010: Specifications for arc-tracking resistant cables used in these tests.
• EN 2350: Circuit breaker technical requirements for aerospace applications.
• EN 3475-302: Voltage proof test for aerospace cables post-arc exposure.

Practical Value

The use of kSIST FprEN 6059-502:2026 promotes aviation electrical safety, minimizes the risk of catastrophic failure due to cable insulation breakdown, and helps ensure compliance with international aerospace quality systems. By following these standardized arc resistance test methods, organizations can:

• Protect critical electrical circuits against short-circuit and arc-fault hazards.
• Validate protection materials for use in tightly regulated aerospace environments.
• Reduce mass and optimize material use without compromising protection performance.
• Streamline the certification process for new or modified cable protection solutions.

Keywords: aerospace electrical standards, protection sleeve arc resistance, cable conduit testing, aviation safety, EN 6059-502, arc fault protection, aircraft wiring compliance, SIST, aerospace cable qualification, electrical arc test method.

SLOVENSKI STANDARD
oSIST prEN 6059-502:2024
01-maj-2024
Aeronavtika - Električni kabli, namestitev - Zaščitne obojke - Preskusne metode -
502. del: Odpornost proti električnim oblokom
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
Ta slovenski standard je istoveten z: prEN 6059-502
ICS:
29.060.20 Kabli Cables
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 6059-502:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 6059-502:2024
oSIST prEN 6059-502:2024
DRAFT
EUROPEAN STANDARD
prEN 6059-502
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2023
ICS 49.060 Will supersede EN 6059-502:2014
English Version
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
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 6059-502:2023 E
worldwide for CEN national Members.

oSIST prEN 6059-502:2024
prEN 6059-502:2024 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Specimen requirements . 5
5 Definition and preparation of specimen . 5
5.1 Test configuration . 5
5.2 Target bundle (bundle T) . 6
5.2.1 Definition and constitution . 6
5.2.2 Preparation . 6
5.2.3 Lay up the seven cables as follows . 6
5.3 Protected bundle (bundle P) . 7
5.3.1 Definition and constitution . 7
5.3.2 Preparation . 7
5.3.3 Lay up the seven cables as follows . 7
6 Apparatus . 10
6.1 Electrical equipment - Test configurations (case of a three-phase 115 VAC network) . 10
6.2 Test equipment . 12
6.3 Test protocol . 12
6.4 Test rig set-up . 13
6.5 Description of the expected measurements. 13
7 Method . 13
7.1 Test procedure . 13
7.2 Short-circuit pass/fail criteria . 14
7.3 Examination . 15
7.4 Test report . 15
8 Requirements . 16

oSIST prEN 6059-502:2024
prEN 6059-502:2024 (E)
European foreword
This document (prEN 6059-509:2024) 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 document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 6059-502:2014.
The main changes with respect to the previous edition are as follows:
— EN 6059-502 (P2), 12/2014 — Editorial improvements and update of test method to eliminate the
230 VAC electrical arc, retain only the 115 VAC element and to ensure integrity of adjacent target
harness cable after short circuit test. Update of Clause 2 “Normative references”. Addition of
Clause 3 “Terms and definitions”.
oSIST prEN 6059-502:2024
prEN 6059-502:2024 (E)
1 Scope
This document specifies a method of assessing the behaviour of protection sleeves or conduits subject
to an external electric arc, at 115 VAC 400 Hz.
This document is expected to 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 the surrounding external
cables bundle which are adjacent from this protection and are supposed to be maintained in a safe
condition. These electric arcs are representative of those, which can 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 I
n
to each sleeves or conduits construction.
Two levels of prospective fault current are specified for all protection sizes.
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 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 —
Part 100: General
EN 6059-501, Aerospace series — Electrical cables, installation — Protection sleeves — Test methods —
Part 501: Voltage proof test
A-A-52083, Specification for tape lacing and tying
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/

Published as ASD-STAN Standard at the date of publication of this document by AeroSpace and Defence
industries Association of Europe — Standardization (ASD-STAN), https://www.asd-stan.org/.
Published by Customer Service, Defense Printing Service Detachment Office, 700 Robbins Ave, Building 4D,
Philadelphia PA 19111-5094 USA.
oSIST prEN 6059-502:2024
prEN 6059-502:2024 (E)
4 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.
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.
5 Definition and preparation of specimen
5.1 Test configuration
Test set ups are made to reproduce arc containment configuration, which is the worst-case scenario to
demonstrate that sleeve/conduit protect against arc blast and act also as a physical protected barrier.
Current fault of short-circuit shall be max 15 A which represents sleeve installation and signal
segregation at aircraft integration.
The bundle T shall be attached side by side with bundle P by qualified cable ties, according to the
following Figure 1 and illustrated by Figure 2.

Key
1 Cable tie 6 PTFE pipe
2 Drop needle 7 Protection sleeve
3 Protection sleeve 8 Protected bundle
4 Camera 9 d = 0 mm
5 Support 10 Target bundle
Figure 1 — Test configuration
oSIST prEN 6059-502:2024
prEN 6059-502:2024 (E)
Key
1 Carrier harness + protective sleeve
2 Bundle P
3 Bundle A
4 Pipe from peristaltic pump
Figure 2 — Illustration test set up
5.2 Target bundle (bundle T)
5.2.1 Definition and constitution
Bundles T are made of seven 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.
5.2.2 Preparation
Cut seven separate lengths of approximately 1 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.
5.2.3 Lay up the seven cables as follows
a) Form the bundle of cables in a six around one configuration as shown in Figure 3.
b) Ensure that all cables are straight and geometrically parallel, and restrained by ties such that they
are in 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 4.
The tie material shall be PTFE glass lacing tape conforming to A-A-52083, finish D size 3.
oSIST prEN 6059-502:2024
prEN 6059-502:2024 (E)
Figure 3 — Cable specimen configuration
5.3 Protected bundle (bundle P)
5.3.1 Definition and constitution
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.
5.3.2 Preparation
Cut seven separate lengths of approximately 1 m consecutively from one length of cable, and strip each
of the ends of cable insulation to permit electrical connection.
Clean each length of cable with a clean cloth moistened with propan-2-ol (isopropyl alcohol) fluid.
5.3.3 Lay up the seven cables as follows
a) Damage two cables by inflicting a cut around the total circumference of insulation at the mid-point
of the length:
— take care to ensure that the cut penetrates to the conductor around the full circumference and
has a width 5 mm ± 1 mm (refer to Figure 4). Precaution shall be taken not to cut through the
conductor;
— those two damaged cables shall be side by side and they are identified individually with labels
as A1 and C1 (refer to Figure 4).
b) The five other cables are identified individually with labels as B1, B2 A2, C2 and N.
c) Form the cables in a six-around-one configuration as shown in Figure 3. Ensure that
...