SIST EN 3475-807:2026

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 807: Transfer impedance

This document specifies methods for measuring the transfer impedance of a cable.
It is intended to be used together with EN 3475-100 and IEC 62153-4-3.

Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren - Teil 807: Kopplungswiderstand

Série aérospatiale - Câbles électriques à usage aéronautique - Méthodes d'essais - Partie 807 : Impédance de transfert

Le présent document spécifie les méthodes de mesure de l'impédance de transfert d'un câble.
Il est destiné à être utilisé conjointement avec l’EN 3475-100 et l’IEC 62153-4-3.

Aeronavtika - Električni kabli za uporabo v zračnih plovilih - Preskusne metode - 807. del: Prenosna impedanca

General Information

• 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: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Jan-2026
• Due Date: 12-Mar-2026
• Ref Project: EN 3475-807:2025 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 807: Transfer impedance

Relations

• Revised: SIST EN 3475-807:2004 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 807: Transfer impedance
• Effective Date: 19-Jan-2023

Overview

EN 3475-807:2025, part of the Aerospace series, specifies methods for measuring the transfer impedance of electrical cables intended for aircraft use. The document is intended to be used together with EN 3475-100 (general test requirements) and IEC 62153-4-3 (triaxial surface transfer impedance methods). Its purpose is to provide a harmonized approach for evaluating cable coupling behaviour and supporting compliance with electromagnetic compatibility (EMC) requirements.

Key Topics

• Scope and intent: Defines the measurement objective - the transfer impedance Z of a cable - without prescribing product limit values (those are set in the relevant product standard).
• Specimen preparation: Tests require specimens to be stripped and prepared for connection to the chosen measuring device; correct preparation is essential for repeatable results.
• Test method reference: The triaxial test procedures of IEC 62153-4-3 are to be used. That standard describes several triaxial measurement methods; the exact method selected must be reported with the measured value.
• Reporting and requirements: Measured transfer impedance values shall be compared to the thresholds specified in the applicable product standard. The actual IEC method used must be documented alongside test results.

Applications

Measuring transfer impedance under EN 3475-807:2025 has practical value across aerospace cable development, qualification and procurement:

• EMC qualification: Assess how well cable shielding limits electromagnetic coupling into or out of conductors.
• Design verification: Support material and construction choices for shielded cables to meet aircraft EMC requirements.
• Production control: Verify consistent shielding performance across manufactured cable batches.
• Acceptance testing: Provide objective data for certification and supplier acceptance, where product standards reference transfer impedance limits.

Benefits include improved system reliability, reduced risk of interference with avionics, and clearer traceability of test methods and results.

Related Standards

• EN 3475-100 - Aerospace series: Cables, electrical, aircraft use - Test methods - Part 100: General requirements and specimen handling.
• IEC 62153-4-3 - Metallic communication cable test methods: EMC - Surface transfer impedance - Triaxial method (provides the detailed triaxial procedures referenced by EN 3475-807).

Practical notes: Always report the exact IEC triaxial method used, specimen preparation details and test conditions when submitting transfer impedance results. Transfer impedance values are to be compared with limits defined in the specific cable product standard rather than in EN 3475-807 itself.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 3475-807:2024
01-maj-2024
Aeronavtika - Električni kabli za uporabo v zračnih plovilih - Preskusne metode -
807. del: Prenosna impedanca
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 807: Transfer
impedance
Luft- und Raumfahrt - Elektrische Leitungen für Luftfahrtverwendung - Prüfverfahren -
Teil 807: Kopplungswiderstand
Série aérospatiale - Câbles électriques à usage aéronautique - Méthodes d'essais -
Partie 807 : Impédance de transfert
Ta slovenski standard je istoveten z: prEN 3475-807
ICS:
29.060.20 Kabli Cables
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 3475-807:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 3475-807:2024
oSIST prEN 3475-807:2024
DRAFT
EUROPEAN STANDARD
prEN 3475-807
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2023
ICS 49.060 Will supersede EN 3475-807:2002
English Version
Aerospace series - Cables, electrical, aircraft use - Test
methods - Part 807: Transfer impedance
Série aérospatiale - Câbles électriques à usage Luft- und Raumfahrt - Elektrische Leitungen für
aéronautique - Méthodes d'essais - Partie 807: Luftfahrtverwendung - Prüfverfahren - Teil 807:
Impédance de transfert Kopplungswiderstand
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 3475-807:2023 E
worldwide for CEN national Members.

oSIST prEN 3475-807:2024
prEN 3475-805:2023 (E)
Contents Page
European foreword . 3
1 Scope .
...