SIST EN 4681-006:2019

Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 006: AZA family, single and multicore assembly, for use in low pressure atmosphere - Product standard

This European Standard specifies the characteristics of electrical wires AZA family for use in the on board:
   115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft.
   230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use in non-pressurized areas.
This cable family is used at operating temperature between  65 °C and 180 °C.

Luft- und Raumfahrt - Elektrische Leitungen, zur allgemeinen Verwendung, mit Leitern aus Aluminium oder kupferbeschichtetem Aluminium - Teil 006: AZA-Familie, ein- und mehradrige Leitungen, zur Anwendung bei niedrigem Luftdruck - Produktnorm

Diese Europäische Norm legt die Eigenschaften von elektrischen Leitungen der AZA-Familie zur Verwen-dung mit
 115 V (Phase gegen Neutral) oder 200 V (Phase gegen Phase) in elektrischen Bordnetzen von Luft-fahrzeugen, und
 230 V (Phase gegen Neutral) oder 400 V (Phase gegen Phase) in elektrischen Bordnetzen von Luft-fahrzeugen und insbesondere zur Verwendung in nicht druckbelüfteten Bereichen fest.
Diese Leitungsfamilie wird bei Betriebstemperaturen zwischen −65 °C und 180 °C verwendet.

Série aérospatiale - Câbles, électriques, d'usage général, avec conducteurs en aluminium ou en aluminium chemisé cuivre - Partie 006: Famille AZA, fil simple et éléments assemblés, pour emploi en basse pression - Norme de produit

La présente Norme Européenne spécifie les caractéristiques de la famille de fils électriques AZA pour utilisation dans les systèmes à bord :
   réseau électrique d’aéronef 115 V (phase à neutre) ou 200 V (phase à phase) ;
   réseau électrique d’aéronef 230 V (phase à neutre) ou 400 V (phase à phase) et utilisation spécifique en zones non pressurisées.
La température de fonctionnement de cette famille de câbles est comprise entre  65 °C et 180 °C.

Aeronavtika - Kabli, električni, za splošne namene, z vodniki iz aluminija ali pobakrenega aluminija - 006. del: Družina AZA, enožilni in večžilni vodi, za uporabo v nizkotlačnih atmosferah - Standard za proizvod

Ta evropski standard določa značilnosti električnih kablov družine AZA za uporabo v:
– električnih omrežjih na letalih 115 V (fazna napetost) ali 200 V (medfazna napetost);
– električnih omrežjih na letalih 230 V (fazna napetost) ali 400 V (medfazna napetost) in zlasti v prostorih, ki niso pod tlakom.
Ta družina kablov se uporablja pri temperaturah med −65 °C in 180 °C.

General Information

• Status: Published
• Publication Date: 01-Jul-2019
• ICS: 29.060.20 - Cables
• ICS: 49.025.20 - Aluminium
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 20-Jun-2019
• Due Date: 25-Aug-2019
• Completion Date: 02-Jul-2019
• Ref Project: EN 4681-006:2019 - Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 006: AZA family, single and multicore assembly, for use in low pressure atmosphere - Product standard

Relations

• Replaces: SIST EN 4681-006:2015 - Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 006: AZA family, single and mulicore assembly, for use in low pressure atmosphere - Product standard
• Effective Date: 19-Jun-2019
• Revised: SIST EN 4681-006:2015 - Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 006: AZA family, single and mulicore assembly, for use in low pressure atmosphere - Product standard
• Effective Date: 10-Aug-2016

Overview

SIST EN 4681-006:2019 is a European product standard published by CEN that specifies the characteristics and requirements of aerospace electrical cables known as the AZA family. These cables are designed with conductors made from aluminium or copper-clad aluminium and are intended for general-purpose use in aircraft electrical systems operating in low pressure atmospheres. The standard applies specifically to cables used in:

• Aircraft electrical networks of 115 V (phase to neutral) or 200 V (phase to phase).
• Aircraft electrical networks of 230 V (phase to neutral) or 400 V (phase to phase), with particular emphasis on non-pressurized areas.

The cables covered operate safely within extreme temperature ranges from −65 °C to 180 °C, ensuring reliability under harsh aerospace conditions. SIST EN 4681-006:2019 supersedes the earlier 2015 version, reflecting updated industry requirements and quality assurance measures.

Key Topics

Materials and Construction

• Conductors: Nickel-plated aluminium alloy conductors complying with EN 3719.
• Insulation: Designed to prohibit foamed insulation, minimizing gas cavities to prevent partial discharges. The insulation must withstand bending without wrinkling, conforming to EN 3475-405.
• Cable Types: Single and multicore assemblies for various electrical network voltages in aerospace applications.
• Temperature Range: Operates reliably from −65 °C to 180 °C.

Performance and Testing Requirements

• Electrical Tests: Ohmic resistance, insulation resistance, voltage proof, and corona extinction voltage testing at low pressure and high temperature conditions.
• Mechanical Tests: Includes bending, cold bend tests, thermal shock, shrinkage, delamination, and tensile strength assessments for cables and conductors.
• Environmental Resistance: Cable suitability for exposure to humidity, various fluids, and accelerated aging tested up to 10,000 hours at 180 °C.
• Flammability: Strict flammability criteria with extinguishing times not exceeding 3 seconds ensure aircraft safety.
• Marking: Laser and user-applied markings comply with EN 3838 for clear cable identification.

Quality Assurance

• The standard adheres to aerospace-specific quality management procedures outlined in EN 9133 to guarantee product consistency and compliance.

Applications

SIST EN 4681-006:2019 cables are specifically engineered for aerospace use, addressing the unique challenges of aircraft electrical systems operating under low atmospheric pressure and variable temperatures. Key application areas include:

• On-board Aircraft Electrical Networks: Providing reliable power transmission for avionic systems and electrical distribution units operating under both pressurized and non-pressurized conditions.
• Non-Pressurized Aircraft Zones: Cables are optimized for zones subject to low pressure, ensuring electrical safety and performance at high altitudes or during depressurization.
• Temperature-Resilient Wiring: Suitable for aircraft sections experiencing extreme temperature fluctuations, including engine compartments and external wing sections.
• General Aerospace Electrical Installations: General-purpose cables for both new aircraft design and maintenance replacements, aligning with stringent safety regulations.

Related Standards

SIST EN 4681-006:2019 is part of a wider series of aerospace electrical cable standards:

• EN 4681-001: Technical specification outlining general technical requirements for aluminium and copper-clad aluminium cables in aerospace.
• EN 4681-002: Specifies general construction, colours, and cabling principles for aerospace cables.
• EN 3719: Defines product standards for aluminium or aluminium alloy conductors used in aerospace cables.
• EN 3475-100: Describes standardized test methods for aerospace electrical cables.
• EN 3838: Covers requirements and tests for user-applied markings on aircraft electrical cables.
• EN 9133: Quality management system qualification procedure for aerospace standard products.

These complementary standards ensure comprehensive guidance for design, manufacturing, testing, and quality assurance in aerospace electrical cabling.

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Keywords: SIST EN 4681-006:2019, aerospace cables, aluminium conductor cables, copper-clad aluminium, aircraft electrical wiring, low pressure atmosphere cables, high temperature aerospace cables, CEN standards, aircraft electrical networks, aviation cable standards, aerospace cable testing, aerospace wire insulation, aerospace cable quality assurance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2019
Nadomešča:
SIST EN 4681-006:2015
Aeronavtika - Kabli, električni, za splošne namene, z vodniki iz aluminija ali
pobakrenega aluminija - 006. del: Družina AZA, enožilni in večžilni vodi, za
uporabo v nizkotlačnih atmosferah - Standard za proizvod
Aerospace series - Cables, electric, general purpose, with conductors in aluminium or
copper-clad aluminium - Part 006: AZA family, single and multicore assembly, for use in
low pressure atmosphere - Product standard
Luft- und Raumfahrt - Elektrische Leitungen, zur allgemeinen Verwendung, mit Leitern
aus Aluminium oder kupferbeschichtetem Aluminium - Teil 006: AZA-Familie, ein- und
mehradrige Leitungen, zur Anwendung bei niedrigem Luftdruck - Produktnorm
Série aérospatiale - Câbles, électriques, d'usage général, avec conducteurs en
aluminium ou en aluminium chemisé cuivre - Partie 006: Famille AZA, fil simple et
éléments assemblés, pour emploi en basse pression - Norme de produit
Ta slovenski standard je istoveten z: EN 4681-006:2019
ICS:
29.060.20 Kabli Cables
49.025.20 Aluminij Aluminium
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4681-006
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2019
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 4681-006:2015
English Version
Aerospace series - Cables, electric, general purpose, with
conductors in aluminium or copper-clad aluminium - Part
006: AZA family, single and multicore assembly, for use in
low pressure atmosphere - Product standard
Série aérospatiale - Câbles, électriques, d'usage Luft- und Raumfahrt - Elektrische Leitungen, zur
général, avec conducteurs en aluminium ou en allgemeinen Verwendung, mit Leitern aus Aluminium
aluminium chemisé cuivre - Partie 006: Famille AZA, fil oder kupferbeschichtetem Aluminium - Teil 006: AZA-
simple et éléments assemblés, pour emploi en basse Familie, ein- und mehradrige Leitungen, zur
pression - Norme de produit Anwendung bei niedrigem Luftdruck - Produktnorm
This European Standard was approved by CEN on 6 August 2018.

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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4681-006:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms, definitions and symbols . 4
4 Materials and construction . 5
5 Required characteristics . 6
6 Quality assurance . 8
7 Designation . 9
8 Identification and marking . 9
9 Packaging, labelling and delivery lengths . 9
10 Technical specification . 9

European foreword
This document (EN 4681-006:2019) 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 December 2019, and conflicting national standards shall
be withdrawn at the latest by December 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.
This document supersedes EN 4681-006:2015.
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
the United Kingdom.
1 Scope
This European Standard specifies the characteristics of electrical wires AZA family for use in the on board:
 115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft.
 230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use
in non-pressurized areas.
This cable family is used at operating temperature between − 65 °C and 180 °C.
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.
1)
EN 3475-100, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 100: General
EN 3719, Aerospace series — Aluminium or aluminium alloy cond
...