EN 50290-2-35:2016

Communication cables - Part 2-35: Common design rules and construction - Polyamide sheathing compound

This Part 2-35 of EN 50290 gives specific requirements for Polyamide and Polyamide alloys to be used for the inner and outer sheathing of cables. It is to be read in conjunction with Part 2-20 of EN 50290, the product standards EN 50288-7 and EN 61158 and other applicable product standards. Using raw material and type test data as outlined in this standard, the raw material supplier will have sufficient data to demonstrate compliance and warrant that the material is suitable for the specified application.

Kommunikationskabel - Teil 2-35: Gemeinsame Regeln für Entwicklung und Konstruktion - Polyamid-Mantelmischung

Dieser Teil 2-35 der EN 50290 legt spezifische Anforderungen für Polyethylen und Polyamid für Innen- und Aussenmäntel von Kabeln fest. Diese Europäische Norm ist zusammen mit EN 50290-2 20, den Produktnormen EN 50288-7, EN 61158 und anderen zutreffenden Produktnormen zu lesen. Die Verwendung der Prüfwerte der Rohstoffe und der Daten von Typprüfungen wie in dieser Norm beschrieben, stellt dem Lieferanten der Rohstoffe ausreichende Daten zur Verfügung, um die Nachweise der Übereinstimmung mit den Anforderungen zu erbringen und um zu garantieren, dass das Material für die festgelegte Anwendung geeignet ist.

Câbles de communication - Partie 2-35: Règles de conception communes et construction - Mélange pour le gainage en polyamide

La présente Partie 2-35 de l'EN 50290 fournit les exigences spécifiques relatives au polyamide et aux alliages à base de polyamide destinés à être utilisés pour le gainage intérieur et extérieur de câbles. Il est indispensable de lire la présente Norme européenne conjointement avec la Partie 2-20 de l'EN 50290, les normes de produit EN 50288-7 et EN 61158 et d'autres normes de produit applicables. En utilisant les données relatives aux matières premières et aux essais de type, telles qu'énoncées dans la présente norme, le fournisseur de matières premières dispose de données suffisantes pour en démontrer la conformité et garantir que le matériau convient pour l'application spécifiée.

Komunikacijski kabli - 2-35. del: Skupna pravila za snovanje in konstruiranje - Poliamidna zmes za oplaščenje

Ta del 2-35 standarda EN 50290 podaja posebne zahteve za poliamid in poliamidne zlitine, ki se
uporabljajo za notranje in zunanje oplaščenje kablov.
Pomembno je, da se ta evropski standard bere v povezavi z delom 2-20 standarda EN 50290, standardoma
za proizvode EN 50288-7 in EN 61158 ter drugimi veljavnimi standardi za proizvode.
Z uporabo podatkov o surovini in tipskem preskušanju, kot je opisano v tem standardu, bo imel dobavitelj surovine
dovolj podatkov, da dokaže skladnost in jamči, da je material ustrezen za opredeljeno
uporabo.

General Information

• Status: Published
• Publication Date: 18-Aug-2016
• ICS: 29.035.20 - Plastics and rubber insulating materials
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: CLC/TC 46X - Communication cables
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 26-May-2026
• Ref Project: SIST EN 50290-2-35:2016 - Communication cables - Part 2-35: Common design rules and construction - Polyamide sheathing compound

Overview

EN 50290-2-35:2016 is a European standard developed by the CLC, specifying common design rules and construction requirements for polyamide sheathing compounds used in communication cables. This standard applies to polyamide and polyamide alloys suitable for the inner and outer sheathing of cables. It complements EN 50290-2-20 and product standards such as EN 50288-7 and EN 61158.

The standard provides essential technical criteria using raw material and type test data to enable raw material suppliers to demonstrate compliance, ensuring that polyamide compounds are suitable for specified cable applications. It addresses physical and mechanical properties, environmental factors, and regulatory compliance related to the use of polyamide materials in cable sheathing.

Key Topics

• Scope and Application
  Defines polyamide sheathing requirements for inner/outer cable layers, applicable up to 90 °C operating temperatures.

• Compound Requirements
  Specifies physical properties that polyamide compounds must meet for use in cables. These include:

  • Density below 1.06 g/cm³
  • Shore D hardness between 65–80
  • Moisture absorption less than 2.5% at 23 °C, 50% relative humidity
  • Water absorption below 7% at 23 °C
  • Carbon black content around 2% ± 0.5% for black compounds
  • Carbon black dispersion quality with agglomerate sizes less than or equal to 3 (for black sheathing)

• Cable Test Criteria
  Outlines the mechanical performance benchmarks for cables with polyamide sheathing before and after ageing tests, including:

  • Tensile strength median minimum of 40 MPa
  • Elongation at break median minimum of 250%
  • Thermal ageing endurance with elongation variation within ±20% after exposure at 110 °C for 14 days
  • Mineral oil immersion test to maintain mechanical properties with variation limits up to ±25%

• Health, Safety, and Environmental (HSE) Compliance
  Mandates adherence to HSE regulations as per EN 50290-2-20. Raw material suppliers must declare any deviations and cooperate with cable manufacturers to ensure safety standards.

• UV Protection Recommendations
  Recommends black compounds with carbon black for optimal UV resistance in outer sheaths. When colored sheaths are required, UV stabilizers must be added to maintain durability.

Applications

• Telecommunication Cables
  Polyamide sheathing compounds conforming to EN 50290-2-35:2016 are widely used for inner and outer layers of telecom cables, offering strong mechanical protection and environmental resistance.

• Coaxial and Waveguide Cables
  The standard supports application in coaxial cables requiring durable, water-resistant sheaths to safeguard signal integrity.

• Industrial and Outdoor Cable Installations
  The durability to thermal ageing and mineral oil immersion makes these compounds suitable for harsh environments including industrial zones and outdoor installations exposed to oils and UV radiation.

• Cable Manufacturer Supply Chains
  Provides raw material suppliers with test data requirements to ensure smooth certification, supporting quality assurance cascades across cable production chains.

Related Standards

• EN 50290-2-20
  Covers health, safety, and environmental requirements applicable to cable materials, complementing the physical and mechanical aspects presented in Part 2-35.

• EN 50288-7
  Product standard for communication cables that references applicable design and performance criteria for cable construction.

• EN 61158
  International standard on industrial communication networks applicable to cable specifications.

• IEC 60811 Series
  Includes detailed test methods referenced for evaluating mechanical, physical, and chemical properties of cable non-metallic materials.

• EN ISO 62 & EN ISO 868
  Define testing methods for determining water absorption and hardness relevant to compound characterization.

By adhering to EN 50290-2-35:2016, cable manufacturers and material suppliers can ensure polyamide sheathing compounds meet stringent performance and safety criteria, providing robust, durable communication cables capable of operating reliably in diverse global environments.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2016
.RPXQLNDFLMVNLNDEOLGHO6NXSQDSUDYLOD]DVQRYDQMHLQNRQVWUXLUDQMH
3ROLDPLGQD]PHV]DRSODãþHQMH
Communication cables - Part 2-35: Common design rules and construction - Polyamide
sheathing compound
Câbles de communication - Partie 2-35: Règles de conception communes et construction
- Mélange pour gainage en polyamide
Ta slovenski standard je istoveten z: EN 50290-2-35:2016
ICS:
29.035.20 3ODVWLþQLLQJXPHQLL]RODFLMVNL Plastics and rubber insulating
PDWHULDOL materials
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50290-2-35

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2016
ICS 29.035.20; 33.120.10
English Version
Communication cables - Part 2-35: Common design rules and
construction - Polyamide sheathing compound
Câbles de communication - Partie 2-35: Règles de Kommunikationskabel - Teil 2-35: Gemeinsame Regeln für
conception communes et construction - Mélange pour le Entwicklung und Konstruktion - Polyamid-Mantelmischung
gainage en polyamide
This European Standard was approved by CENELEC on 2016-07-22. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50290-2-35:2016 E
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Compound requirements . 4
4 Cable test requirements . 5
5 Health, Safety and Environmental Regulations . 5

European foreword
This document (EN 50290-2-35:2016) has been prepared by CLC/TC 46X, "Communication cables".
The following dates are fixed:
• latest date by which this document has (dop) 2017-07-22
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-07-22
standards conflicting with this
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
1 Scope
This Part 2-35 of EN 50290 gives specific requirements for Polyamide and Polyamide alloys to be
used for the inner and outer sheathing of cables.
It is essential to read this European Standard in conjunction with Part 2-20 of EN 50290, the product
standards EN 50288-7 and EN 61158 and other applicable product standards.
Using raw material and type test data as outlined in this standard,
...