Aerospace series - Cable, electrical, for digital data transmission - Part 007: Double braid - 77 Ohms - Type WW - Product standard

This European Standard specifies the required characteristics of double braid, 77 ohms, size 26 electrical cable type WW, intended for digital data transmissions.
Main electrical characteristics are given in ‎4.3
It shall be used together with EN 3375-001 and EN 3375-002.

Luft- und Raumfahrt - Elektrische Leitungen für Digitaldatenübertragungen - Teil 007: Doppelt geschirmt - 77 Ohm - Type WW - Produktnorm

Série aérospatiale - Câbles électriques pour transmission de données numériques - Partie 007 : Double tresse - 77 ohms - Type WW - Norme de produit

Aeronavtika - Električni kabli za digitalni prenos podatkov - 007. del: Dvojni oplet - 77 ohmov - Tip WW - Standard za proizvod

Ta evropski standard določa zahtevane lastnosti električnih kablov tipa WW, dvojni oplet, 77 ohmov, velikost 26, namenjenih za digitalni prenos podatkov.
Glavne električne lastnosti so podane v točki 4.3.
Uporabljati ga je treba s standardoma EN 3375-001 in EN 3375-002.

General Information

Status
Published
Publication Date
06-Sep-2016
Withdrawal Date
30-Mar-2017
ICS
49.060 - Aerospace electric equipment and systems
 
49.090 - On-board equipment and instruments
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 2 - Electrical
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
07-Sep-2016
Completion Date
07-Sep-2016
Ref Project
SIST EN 3375-007:2016 - Aerospace series - Cable, electrical, for digital data transmission - Part 007: Double braid - 77 Ohms - Type WW - Product standard

Relations

Replaces
EN 3375-007:2006 - Aerospace series - Cable, electrical, for digital data transmission - Part 007: Double braid - 77 Ohms - Type WW - Product standard
Effective Date
14-Sep-2016
Refers
EN 9133:2018 - Aerospace series - Quality Management Systems - Qualification Procedure for Aerospace Standard Products
Effective Date
28-Jan-2026
Refers
EN 3475-100:2010 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100: General
Effective Date
28-Jan-2026
Referred By
EN 3375-002:2012 - Aerospace series - Cable, electrical, for digital data transmission - Part 002: General
Effective Date
28-Jan-2026

Overview

EN 3375-007:2016 is a CEN aerospace product standard that defines the required characteristics for a double-braid, 77 ohm, size 26 electrical cable (Type WW) intended for digital data transmission in aerospace applications. It specifies construction, key electrical parameters, mechanical features, marking and packaging requirements, and the tests required to verify compliance. This standard is to be used together with EN 3375-001 (technical specification) and EN 3375-002 (general requirements).

Key topics and technical requirements

  • Cable construction: Dual-conductor (size 26) assembly with fluorocarbon insulation and outer fluorocarbon sheath, two fillers and a double braid screen of silver‑plated copper.
  • Electrical characteristics (clause 4.3):
    • Characteristic impedance: 77 ohms (differential)
    • Capacitance: ≤ 75 pF/m
    • Attenuation: ≤ 4.1 dB/100 m at 1 MHz
    • Transfer impedance: specified across frequencies in clause 4.3 (values for DC, 1 MHz, 10 MHz and 30 MHz are given)
  • Mechanical and installation:
    • Recommended minimum bend radius: R = 20 mm
    • Twisting pitch: 8 to 16 × external diameter of the dual-conductor assembly
    • Typical mass and dimensional limits are given (see product tables)
  • Marking and identification:
    • Marking conventions and short designation codes are defined (e.g., braid code C for silver‑plated copper; jacket codes for main/branch lines). Example marking: “EN WW R 26 FRF 05”.
    • Core colors: 1 white + 1 light blue; jacket: white.
  • Testing and quality assurance:
    • Conformance testing follows EN 3475 series (test methods) and EN 3375‑001; tests include capacitance, characteristic impedance, attenuation, transfer impedance, mechanical endurance and other applicable environmental tests.
    • Quality system guidance per EN 9133.

Applications and users

  • Intended for shielded, balanced digital data transmission in aircraft and aerospace systems where 77 Ω impedance and robust EMI screening are required.
  • Primary users:
    • Aerospace cable manufacturers specifying or producing Type WW cables
    • Avionics and systems engineers designing data links and harnesses
    • Procurement, quality assurance and test laboratories responsible for compliance verification
    • Technical writers and installers specifying marking, routing and installation practices

Related standards

  • EN 3375-001 - Cable, electrical, for digital data transmission - Technical specification
  • EN 3375-002 - General requirements for digital data cables
  • EN 2083 / EN 2235 - Conductor and general cable product specifications
  • EN 3475-100 - Aerospace cable test methods
  • EN 9133 - Quality management for aerospace standard parts
  • TR 6058 - Cable code and identification list

Keywords: EN 3375-007:2016, aerospace cable, 77 ohm cable, double braid, Type WW, digital data transmission, shielded data cable, avionics cable testing.

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Frequently Asked Questions

EN 3375-007:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Cable, electrical, for digital data transmission - Part 007: Double braid - 77 Ohms - Type WW - Product standard". This standard covers: This European Standard specifies the required characteristics of double braid, 77 ohms, size 26 electrical cable type WW, intended for digital data transmissions. Main electrical characteristics are given in ‎4.3 It shall be used together with EN 3375-001 and EN 3375-002.

This European Standard specifies the required characteristics of double braid, 77 ohms, size 26 electrical cable type WW, intended for digital data transmissions. Main electrical characteristics are given in ‎4.3 It shall be used together with EN 3375-001 and EN 3375-002.

EN 3375-007:2016 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems; 49.090 - On-board equipment and instruments. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 3375-007:2016 has the following relationships with other standards: It is inter standard links to EN 3375-007:2006, EN 9133:2018, EN 3475-100:2010, EN 3375-002:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 3375-007:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Elektrische Leitungen für Digitaldatenübertragungen - Teil 007: Doppelt geschirmt - 77 Ohm - Type WW - ProduktnormSérie aérospatiale - Câbles électriques pour transmission de données numériques - Partie 007 : Double tresse - 77 ohms - Type WW - Norme de produitAerospace series - Cable, electrical, for digital data transmission - Part 007: Double braid - 77 Ohms - Type WW - Product standard49.060Aerospace electric equipment and systems29.060.20KabliCablesICS:Ta slovenski standard je istoveten z:EN 3375-007:2016SIST EN 3375-007:2016en,fr,de01-november-2016SIST EN 3375-007:2016SLOVENSKI
STANDARDSIST EN 3375-007:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3375-007
September
t r s x ICS
v {ä r x râ
v {ä r { r Supersedes EN
u u y wæ r r yã t r r xEnglish Version
Aerospace series æ Cableá electricalá for digital data transmission æ Part
r r yã Double braid æ
y y Ohms æ Type WW æ Product standard Série aérospatiale æ Câbles électriques pour transmission de données numériques æ Partie
r r y ã Double tresse æ
y y ohms æ Type WW æ Norme de produit
Luftæ und Raumfahrt æ Elektrische Leitungen für Digitaldatenübertragungen æ Teil
r r yã Doppelt geschirmt æ
y y Ohm æ Type WW æ Produktnorm This European Standard was approved by CEN on
v April
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
u u y wæ r r yã t r s x ESIST EN 3375-007:2016

4.3. It shall be used together with EN 3375-001 and EN 3375-002. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2083, Aerospace series — Copper or copper alloy conductors for electrical cables — Product standard EN 2084, Aerospace series — Cables, electrical, general purpose, with conductors in copper or copper alloy — Technical specification EN 2235, Aerospace series — Single and multicore electrical cables, screened and jacketed — Technical specification EN 3375-001, Aerospace series — Cable, electrical, for digital data transmission — Part 001: Technical specification
EN 3375-002, Aerospace series — Cable, electrical, for digital data transmission — Part 002: General
EN 3475-100*, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 100: General EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts TR 6058, Aerospace series — Cable code and identification list 1) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3475-100 apply.
* And all parts quoted in this European Standard. 1) Published as ASD-STAN Technical Report at the date of publication of this European Standard. http://www.asd-stan.org/ SIST EN
...

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