SIST EN 6059-203:2025

Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 203: Coverage

This document specifies methods for measuring and calculating the coverage of protection sleeves for electrical cables and cable bundles. It is presupposed to be used together with EN 6059 100.

Luft- und Raumfahrt - Elektrische Leitungen - Schutzschläuche - Prüfverfahren - Teil 203: Gewebebedeckungsgrad

Dieses Dokument legt Verfahren zur Messung und Berechnung der Bedeckung von Schutzschläuchen für elektrische Kabel und Kabelbündel fest. Es wird vorausgesetzt, dass es zusammen mit EN 6059 100 verwendet wird.

Série aérospatiale - Câbles électriques, installation - Gaines de protection - Méthodes d'essais - Partie 203 : Taux de couverture

Le présent document spécifie des méthodes de mesures et de calculs du taux de couverture des gaines de protection pour les câbles et torons de câbles électriques. Il est supposé être utilisé conjointement avec l’EN 6059 100.

Aeronavtika - Električni kabli, namestitev - Zaščitne obojke - Preskusne metode - 203. del: Pokritost

Ta dokument določa metode za merjenje in izračun pokritosti zaščitnih obojk za električne kable in svežnje kablov. Uporabljati ga je treba skupaj s standardom EN 6059-100.

General Information

• Status: Published
• Public Enquiry End Date: 15-Aug-2023
• Publication Date: 22-Dec-2024
• ICS: 29.060.20 - Cables
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Dec-2024
• Due Date: 21-Feb-2025
• Completion Date: 23-Dec-2024
• Ref Project: EN 6059-203:2024 - Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 203: Coverage

Relations

• Referred By: SIST EN 6049-008:2014 - Aerospace series - Electrical cables, installation - Protective sleeves in meta-aramid fibres - Part 008: Self-wrapping shielded (EMI) protective sleeve with nickel copper braid, flexible post installation operating temperature from -55 ˚C to 200 ˚C - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 6049-005:2015 - Aerospace series - Electrical cables, installation - Protection sleeve in meta-aramid fibres - Part 005: Sleeve flexible, post installation - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 6049-004:2019 - Aerospace series - Electrical cables, installation - Protection sleeve in meta-aramid fibres - Part 004: Braided, tubular, high expandable - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 6049-009:2016 - Aerospace series - Electrical cables, installation - Protection sleeve in meta-aramid fibres - Part 009: Self-wrapping fire protection sleeve, flexible, post installation, operating temperature from - 55 °C to 260 °C - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 6059-100:2012 - Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 100: General
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 6049-008:2018 - Aerospace series - Electrical cables, installation - Protection sleeve in meta-aramid fibres - Part 008: Self-wrapping shielded (EMI) protective sleeve with nickel copper braid, flexible post installation operating temperature from - 55 °C to 200 °C - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 6059-100:2015 - Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 100: General
• Effective Date: 28-Jan-2026

Overview

SIST EN 6059-203:2025 is a European standard developed by CEN within the aerospace series, focusing on electrical cables and their installation, specifically on protection sleeves. This part, titled "Test methods - Part 203: Coverage", defines standardized methods for measuring and calculating the coverage of protection sleeves used to shield electrical cables and cable bundles in aerospace applications. Correct evaluation of sleeve coverage is essential for ensuring the reliable protection of wiring systems in demanding environments.

The standard is designed to be applied in conjunction with EN 6059-100, which outlines the general requirements and test procedures related to protection sleeves. SIST EN 6059-203:2025 is applicable to a range of protection sleeve types, including both braided and woven textiles that are utilized to provide abrasion resistance, electromagnetic shielding, and environmental protection for aerospace cables.

Key Topics

SIST EN 6059-203:2025 addresses several critical areas related to the accurate assessment of protection sleeve coverage:

• Specimen Preparation: Guidelines for cutting and preparing sleeve samples to ensure consistent and repeatable testing conditions.
• Measurement Methods:
  • Theoretical Calculation: Detailed approach for braided and plain weave sleeves, utilizing measurements such as yarn diameter, number of yarns, braid angle, and picks per inch. This method applies mathematical formulas to estimate sleeve coverage percentage.
  • Optical Method: Suitable for more complex textile structures, this technique uses optical devices, such as microscopes, to measure uncovered areas within a defined window, providing an accurate percent coverage calculation.
• Apparatus and Equipment: Recommendations for using micrometers, optical devices, rulers, and specialized counting tools to obtain precise measurements.
• Result Calculation: Standardized formulas to determine the percent coverage, which is a key metric for specifying protection performance.
• Product Compliance: Ensuring measured coverage aligns with product requirements as defined in relevant product standards.

Applications

SIST EN 6059-203:2025 offers practical value across various contexts in the aerospace industry, including:

• Design Verification: Manufacturers of aerospace electrical systems use this standard to verify that protection sleeves meet coverage specifications, ensuring optimal insulation and protection.
• Quality Assurance: Aerospace suppliers apply these standardized test methods during production and batch testing to maintain quality control and compliance with international aviation requirements.
• System Reliability: Aircraft OEMs and maintenance teams rely on consistent cable protection to minimize risks of abrasion, short circuits, and environmental ingress, all of which can be influenced by sleeve coverage.
• Certification and Documentation: Compliance with SIST EN 6059-203:2025 supports regulatory approval and facilitates market access across Europe by meeting harmonized requirements for cable protection.

Related Standards

To achieve full compliance and an integrated approach to aerospace cable protection, the following standards are closely related to SIST EN 6059-203:2025:

• EN 6059-100: Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 100: General (foundation for all subsequent parts)
• Other Parts of EN 6059 Series: Addressing additional test methods and requirements for protection sleeves relevant to the aerospace industry
• IEC/ISO Terminology Databases: For standardized definitions and international alignment in aerospace cable and protective system terminology

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Keywords: SIST EN 6059-203:2025, aerospace electrical cables, protection sleeves, coverage measurement, cable bundle protection, sleeve test methods, CEN standards, cable installation, quality assurance in aerospace, cable system reliability

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2025
Aeronavtika - Električni kabli, namestitev - Zaščitne obojke - Preskusne metode -
203. del: Pokritost
Aerospace series - Electrical cables, installation - Protection sleeves - Test methods -
Part 203: Coverage
Luft- und Raumfahrt - Elektrische Leitungen - Schutzschläuche - Prüfverfahren - Teil
203: Gewebebedeckungsgrad
Série aérospatiale - Câbles électriques, installation - Gaines de protection - Méthodes
d'essais - Partie 203 : Taux de couverture
Ta slovenski standard je istoveten z: EN 6059-203:2024
ICS:
29.060.20 Kabli Cables
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 6059-203
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 49.060
English Version
Aerospace series - Electrical cables, installation -
Protection sleeves - Test methods - Part 203: Coverage
Série aérospatiale - Câbles électriques, installation - Luft- und Raumfahrt - Elektrische Leitungen -
Gaines de protection - Méthodes d'essais - Partie 203 : Schutzschläuche - Prüfverfahren - Teil 203:
Taux de couverture Gewebebedeckungsgrad
This European Standard was approved by CEN on 24 June 2024.

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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 6059-203:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Preparation of specimens . 4
5 Apparatus . 4
6 Methods . 4
6.1 General. 4
6.2 Method 1 – Theoretical calculation . 5
6.2.1 Sleeve characteristics . 5
6.2.2 Measurements of the sleeve characteristics . 6
6.2.3 Percent coverage calculation . 6
6.3 Method 2 – Optical method . 7
6.3.1 Characteristics . 7
6.3.2 Measurement of the characteristics . 7
6.3.3 Procedure . 8
6.3.4 Percent coverage calculation . 8
7 Requirements . 8
Bibliography . 9

European foreword
This document (EN 6059-203:2024) has been prepared by 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 shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by June 2025 and conflicting national standards shall be withdrawn at
the latest by June 2025.
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 prEN 6059-203:1997.
The main changes with respect to the pre
...