EN 50363-6:2005

Insulating, sheathing and covering materials for low voltage energy cables - Part 6: Halogen-free, cross-linked sheathing compounds

This part of EN 50363 specifies the requirements for the physical properties of the harmonised halogen-free cross-linked sheathing compounds given in Table 1. The relevant test methods for verification of compliance are given in EN 60811 (series), EN 50267 2 (series), EN 60684-2 and EN 50396.

Isolier-, Mantel- und Umhüllungswerkstoffe für Niederspannungskabel und -leitungen - Teil 6: Halogenfreie, vernetzte Mantelmischungen

Dieser Teil der EN 50363 legt die Anforderungen an halogenfreie, vernetzte Mantelmischungen fest, die in Tabelle 1 aufgeführt sind. Die entsprechenden Prüfverfahren sind in den Normen der Reihe EN 60811, der Reihe EN 50267-2,EN 60684-2 und EN 50396 beschrieben.

Matériaux pour enveloppe isolante, gainage et revêtement pour les câbles d'énergie basse tension - Partie 6: Mélanges réticulés sans halogène pour gaine

La présente partie de la EN 50363 mentionne les exigences pour les propriétés physiques de mélange(s) réticulé(s) sans halogène pour gainage, donnés dans le Tableau 1. Les méthodes d’essais appropriées sont données dans la série EN 60811, la série EN 50267 2, la EN 60684-2 et la EN 50396.

Materiali za izoliranje, oplaščenje in prevleke nizkonapetostnih energetskih kablov - 6. del: Omrežene mase za oplaščenje brez halogenov

General Information

• Status: Published
• Publication Date: 24-Nov-2005
• Withdrawal Date: 31-Oct-2007
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: CLC/TC 20 - Electric cables
• Drafting Committee: IEC/TC 20 - IEC_TC_20
• Parallel Committee: IEC/TC 20 - IEC_TC_20
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 23-Oct-2024
• Completion Date: 23-Sep-2025
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Ref Project: SIST EN 50363-6:2006 - Insulating, sheathing and covering materials for low voltage energy cables -- Part 6: Halogen-free, cross-linked sheathing compounds

Relations

• Amended By: EN 50363-6:2005/A1:2011 - Insulating, sheathing and covering materials for low voltage energy cables - Part 6: Halogen-free, cross-linked sheathing compounds
• Effective Date: 28-Jan-2023

Overview

EN 50363-6:2005 (CLC) specifies the physical property requirements and test verification for harmonised halogen-free, cross‑linked sheathing compounds used on low‑voltage energy cables. It covers the two compound types listed in Table 1 (EM 8 and EM 10, both with a maximum operating temperature of 70 °C) and references the relevant test standards (EN 60811 series, EN 50267‑2 series, EN 60684‑2 and EN 50396). Note: smoke emission requirements are covered by cable standards, not this materials standard.

Key topics and technical requirements

• Compound types: EM 8 (ordinary duty) and EM 10 (ordinary duty inner sheath for use with EM 8).
• Mechanical properties before ageing:
  • Tensile strength (median, min): EM 8 = 7.0 N/mm²; EM 10 = 5.0 N/mm².
  • Elongation at break (median, min): 125% for both.
• Ageing in air oven: 100 ± 2 °C for 7 × 24 h. Post‑ageing requirements include minimum elongation and limits on variation (e.g., elongation min 100%, variation ±30%).
• Oil immersion (EM 10): 100 ± 2 °C for 24 h with maximum ±40% variation limits for tensile and elongation.
• Hot‑set test: 200 ± 3 °C, 15 min under 20 N/cm²; max elongation under load 100%, after unloading 25%.
• Low temperature behaviour: bending and elongation tests at −15 ± 2 °C; elongation without break min 30%.
• Ozone resistance: Methods A and B with specified ozone concentration, temperature and duration; no cracking permitted.
• Halogen/acid gas assessment:
  • pH ≥ 4.3, conductivity ≤ 10 µS/mm.
  • HCl/HBr ≤ 0.5% by mass; HF ≤ 0.1% by mass (test exceptions noted).
• Referenced test methods: EN 60811 (material electrical cable tests), EN 50267‑2 (halogen acid gas), EN 60684‑2, EN 50396 (ozone).

Applications and users

EN 50363-6 is used by:

• Cable manufacturers specifying or qualifying halogen‑free, cross‑linked sheathing compounds for low‑voltage power cables.
• Materials suppliers validating compound formulations against harmonised European requirements.
• Test laboratories performing EN 60811/EN 50267/EN 50396/EN 60684 series tests to verify compliance.
• Specifiers and OEMs requiring compliant sheathing for safety, reduced toxicity and reduced corrosive gases in fire scenarios.

Practical applications include indoor and outdoor low‑voltage power cables where halogen‑free behaviour (reduced acid gas and toxicity) and mechanical/thermal stability are required.

Related standards

• EN 50363‑0 (general requirements and guidance) - EN 50363‑6 should be read alongside this part.
• Test standards: EN 60811 series, EN 50267‑2 series, EN 60684‑2, EN 50396.

Standards Content (Sample)

SLOVENSKI SIST EN 50363-6:2006

STANDARD
oktober 2006
Materiali za izoliranje, oplaščenje in prevleke nizkonapetostnih energetskih
kablov - 6. del: Omrežene mase za oplaščenje brez halogenov
Insulating, sheathing and covering materials for low voltage energy cables - Part 6:
Halogen-free, cross-linked sheathing compounds
ICS 29.035.20; 29.060.20 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 50363-6
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2005

ICS 29.035.20
English version
Insulating, sheathing and covering materials
for low voltage energy cables
Part 6: Halogen-free, cross-linked sheathing compounds

Matériaux pour enveloppe isolante, Isolier-, Mantel- und
gainage et revêtement pour les câbles Umhüllungswerkstoffe für
d'énergie basse tension Niederspannungskabel und -leitungen
Partie 6: Mélanges réticulés sans Teil 6: Halogenfreie, vernetzte
halogène pour gaine Mantelmischungen

This European Standard was approved by CENELEC on 2005-11-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50363-6:2005 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 20, Electric cables.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50363-6
on 2005-11-01.
EN 50363 (in all its parts) supersedes the equivalent information at present in HD 21.1 S4,
HD 21.14 S1, HD 22.1 S4, HD 22.10 S1, HD 22.14 S2 and prHD 21.15 S1. The existing information in
these HDs will be deleted at the next maintenance review.
EN 50363-6 should be read in conjunction with EN 50363-0.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-11-01

– 3 – EN 50363-6:2005
Contents
1 Scope.4
2 Normative references.4
3 Definitions.4
4 Properties.4
Table 1 – Type of halogen-free cross-linked sheathing compound .4
Table 2 – Requirements for the tests for halogen-free crosslinked sheathing compounds .5

1 Scope
This part of EN 50363 specifies the requirements for the physical properties of the harmonised
halogen-free cross-linked sheathing compounds given in Table 1. The relevant test methods for
...