EN 4708-104:2017
(Main)Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification - Part 104: Semi-rigid polyvinylidene fluoride (PDVF) - Operating temperature - 55 °C to 175 °C - Product Standard
Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification - Part 104: Semi-rigid polyvinylidene fluoride (PDVF) - Operating temperature - 55 °C to 175 °C - Product Standard
This European Standard specifies the required characteristics for a heat-shrinkable, semi-rigid polyvinylidene sleeving for use in aircraft electrical systems at operating temperatures between – 55 °C and 175 °C.
This sleeving is basically transparent, but may be tinted. It is semi-rigid, tough and abrasion resistant, and is suitable for use where strain relief and mechanical protection are required, or where their transparent properties are desirable.
These sleevings are normally supplied with internal diameters up to 25,4 mm for shrink ratios of 2:1.
Sizes other than those specifically listed in this European Standard may be available. These items shall be considered to comply with this European Standard if they comply with the property requirements listed in Tables 2, 3 and 4 except for dimensions and mass.
Luft- und Raumfahrt - Wärmeschrumpfender Schlauch zur Befestigung, Isolierung und Identifizierung - Teil 104: Halbsteif, Polyvinylidenfluorid (PVDF) - Betriebstemperatur - 55 °C bis 175 °C - Produktnorm
Diese Europäische Norm legt die erforderlichen Eigenschaften von wärmeschrumpfenden, halbsteifen Schläuchen aus Polyvenylidenfluorid (PVDF) zur Verwendung in elektrischen Bordnetzen von Luftfahr-zeugen bei Betriebstemperaturen zwischen - 55 °C und 175 °C fest.
Diese Schläuche sind grundsätzlich transparent, dürfen aber eingefärbt sein. Sie sind halbsteif, robust sowie abriebbeständig und an Stellen geeignet, an denen eine Zugentlastung und ein mechanischer Schutz erforderlich sind oder wo ihre transparenten Eigenschaften erwünscht sind.
Diese Schläuche werden üblicherweise mit Innendurchmessern von bis zu 25,4 mm mit einem Schrumpfver-hältnis von 2:1 geliefert.
Andere Größen als diejenigen, die in dieser Europäischen Norm aufgeführt sind, können ebenfalls verfügbar sein. Diese Schläuche müssen als dieser Europäischen Norm entsprechend anerkannt werden, wenn sie den in Tabelle 2, Tabelle 3 und Tabelle 4 aufgeführten Anforderungen mit Ausnahme der Maße und Massen ent-sprechen.
Série aérospatiale - Manchons thermorétractables, de jonction, isolement et identification - Partie 104 : Semi-rigide polyvinylidene fluoride (PVDF) - Température d'utilisation - 55 °C à 175 °C - Norme de produit
Aeronavtika - Toplotno skrčljiva cev za utrjevanje, izolacijo in identifikacijo - 104. del: Poltogi poliviniliden fluorid (PVDF) - Delovna temperatura –55 °C do 175 °C - Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 21-Nov-2017
- Withdrawal Date
- 30-May-2018
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 22-Nov-2017
- Completion Date
- 22-Nov-2017
Relations
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 4708-104:2017 is a CEN product standard for semi-rigid heat-shrinkable polyvinylidene fluoride (PVDF) sleeving intended for aircraft electrical systems. The standard covers sleeving designed to operate in the temperature range −55 °C to 175 °C. These sleeving products are basically transparent (tinted options permitted), semi-rigid, tough and abrasion resistant, and are typically supplied with a 2:1 shrink ratio and internal diameters up to 25.4 mm.
This standard defines required characteristics, test methods and quality assurance criteria to ensure reliable mechanical protection, strain relief and visual inspection capability for aerospace wiring and harness assemblies.
Key Topics
- Material and construction: Semi-rigid PVDF (polyvinylidene fluoride) formulated for heat‑shrinkable sleeving with high abrasion and mechanical resistance.
- Operating range: Specified use between −55 °C and 175 °C, making it suitable for many aircraft environments.
- Sizing and shrink ratio: Normally supplied with a 2:1 shrink ratio; sizes up to 25.4 mm internal diameter are covered. Non‑listed sizes may comply if they meet the property requirements in the standard.
- Performance and tests: EN 4708-104 references EN 60684-2 test methods and mandates property checks such as:
- Tensile strength and elongation (examples in the standard: minimum values for specific tests)
- Longitudinal change and dimensional stability after heating
- Breakdown voltage requirements by wall thickness (e.g., specified kV minima per recovered wall thickness)
- Resistance to selected fluids, heat ageing, water absorption and colour fastness to light
- Flame propagation limits and transparency requirements
- Designation & marking: Sleeving is designated per the standard (example:
EN 4708-104-12,7/6,4 TT, whereTTdenotes transparent sleeving).
Applications
EN 4708-104 PVDF sleeving is used where mechanical protection, strain relief and visual inspection are important. Typical applications include:
- Protection of aircraft wiring bundles and harnesses against abrasion and mechanical wear
- Areas requiring visual inspection of conductors due to the transparent nature of the sleeving
- Situations demanding stable electrical insulation and breakdown performance across a wide temperature range
- Installations exposed to aviation fluids where fluid resistance is required (the standard specifies resistance test fluids and immersion conditions)
Benefits include improved harness longevity, easier maintenance through visual inspection, and conformity with aerospace electrical safety and performance testing.
Related Standards
- EN 4708-001 - Sleeving general technical specification and quality assurance
- EN 60684-1 / EN 60684-2 - Definitions, general requirements and test methods for flexible insulating sleeving
- EN 3909 - Test fluids and test methods for electrical and optical components
- ISO 1817 - Effects of liquids on elastomers (referenced for fluid resistance testing)
- EN ISO 846 - Evaluation of the action of microorganisms (fungus resistance)
For procurement, design and qualification of harness systems, reference EN 4708-104 together with EN 4708-001 and the cited test standards to ensure full compliance with aerospace requirements.
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Frequently Asked Questions
EN 4708-104:2017 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification - Part 104: Semi-rigid polyvinylidene fluoride (PDVF) - Operating temperature - 55 °C to 175 °C - Product Standard". This standard covers: This European Standard specifies the required characteristics for a heat-shrinkable, semi-rigid polyvinylidene sleeving for use in aircraft electrical systems at operating temperatures between – 55 °C and 175 °C. This sleeving is basically transparent, but may be tinted. It is semi-rigid, tough and abrasion resistant, and is suitable for use where strain relief and mechanical protection are required, or where their transparent properties are desirable. These sleevings are normally supplied with internal diameters up to 25,4 mm for shrink ratios of 2:1. Sizes other than those specifically listed in this European Standard may be available. These items shall be considered to comply with this European Standard if they comply with the property requirements listed in Tables 2, 3 and 4 except for dimensions and mass.
This European Standard specifies the required characteristics for a heat-shrinkable, semi-rigid polyvinylidene sleeving for use in aircraft electrical systems at operating temperatures between – 55 °C and 175 °C. This sleeving is basically transparent, but may be tinted. It is semi-rigid, tough and abrasion resistant, and is suitable for use where strain relief and mechanical protection are required, or where their transparent properties are desirable. These sleevings are normally supplied with internal diameters up to 25,4 mm for shrink ratios of 2:1. Sizes other than those specifically listed in this European Standard may be available. These items shall be considered to comply with this European Standard if they comply with the property requirements listed in Tables 2, 3 and 4 except for dimensions and mass.
EN 4708-104:2017 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 4708-104:2017 has the following relationships with other standards: It is inter standard links to EN 60684-1:2003, EN 60684-2:2011, HD 457 S1:1985, EN ISO 846:1997, EN 3909:2016, EN 4708-001:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 4708-104:2017 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)
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EN 4708-104
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2017
EUROPÄISCHE NORM
ICS 49.060
English Version
Aerospace series - Sleeving, heat-shrinkable, for binding,
insulation and identification - Part 104: Semi-rigid
polyvinylidene fluoride (PDVF) - Operating temperature -
55 °C to 175 °C - Product Standard
Série aérospatiale - Manchons thermorétractables, de Luft- und Raumfahrt - Wärmeschrumpfender Schlauch
jonction, isolement et identification - Partie 104 : Semi- zur Befestigung, Isolierung und Identifizierung - Teil
rigide polyvinylidene fluoride (PVDF) - Température 104: Halbsteif, Polyvinylidenfluorid (PVDF) -
d'utilisation - 55 °C à 175 °C - Norme de produit Betriebstemperatur - 55 °C bis 175 °C - Produktnorm
This European Standard was approved by CEN on 18 September 2017.
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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4708-104:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 5
5 Quality assurance . 9
6 Designation . 10
7 Labelling and packaging . 10
8 Technical specification . 10
European foreword
This document (EN 4708-104:2017) 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 European
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 May 2018, and conflicting national standards shall be
withdrawn at the latest by May 2018.
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.
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 required characteristics for a heat-shrinkable, semi-rigid
polyvinylidene sleeving for use in aircraft electrical systems at operating temperatures between – 55 °C
and 175 °C.
This sleeving is basically transparent, but may be tinted. It is semi-rigid, tough and abrasion resistant,
and is suitable for use where strain relief and mechanical protection are required, or where their
transparent properties are desirable.
These sleevings are normally supplied with internal diameters up to 25,4 mm for shrink ratios of 2:1.
Sizes other than those specifically listed in this European Standard may be available. These items shall be
considered to comply with this European Standard if they comply with the property requirements listed
in Tables 2, 3 and 4 except for dimensions and mass.
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 3909, Aerospace series — Test fluids and test methods for electrical and optical components and sub-
assemblies
EN 4708-001, Aerospace series — Sleeving, heat-shrinkable, for binding, insulation and identification —
Part 001: Technical specification
EN 60684-1:2003, Flexible insulating sleeving — Part 1: Definitions and general requirement
(IEC 60684-1:2003)
EN 60684-2:2011, Flexible insulating sleeving — Part 2: Methods of test (IEC 60684-2:2011)
EN ISO 846:1997, Plastics — Evaluation of the action of microorganisms (ISO 846:1997)
HD 457 S1:1985, Code for designation of colours (IEC 60757:1983)
ISO 1817:2005, R
...
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