EN 50290-2-27:2021

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 50290-2-27:2002
SIST EN 50290-2-27:2002/A1:2007
Komunikacijski kabli - 2-27. del: Skupna pravila za načrtovanje in konstrukcijo -
Brezhalogenske zmesi za oplaščenje kablov na osnovi poliolefinov z izboljšanimi
lastnostmi zadrževanja ognja (HFFR)
Communication cables - Part 2-27: Common design rules and construction - Halogen
free polyolefin based sheathing compounds for cables having improved flame and fire
properties (HFFR)
Ta slovenski standard je istoveten z: EN 50290-2-27:2021
ICS:
29.035.20 Plastični in gumeni izolacijski Plastics and rubber insulating
materiali 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 50290-2-27

NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 29.035.20; 33.120.10 Supersedes EN 50290-2-27:2002 and all of its
amendments and corrigenda (if any)
English Version
Communication cables - Part 2-27: Common design rules and
construction - Halogen free polyolefin based sheathing
compounds for cables having improved flame and fire properties
(HFFR)
Câbles de communication Partie 2-27: Règles de
conception communes et construction -
This European Standard was approved by CENELEC on 2021-01-19. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50290-2-27:2021 E
Contents
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Compound test requirements . 7
5 Cable test requirements . 7
6 Health, safety and environmental (HSE) requirements . 8
Bibliography . 11

European foreword
This document (EN 50290-2-27:2021) has been prepared by CLC/TC 46X “Communication cables”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2022–01–19
implemented at national level by publication of
an identical national standard or by
endorsement
latest date by which the national standards (dow) 2021–01–19
•
conflicting with this document have to be
withdrawn
This document will supersede EN 50290-2-27:2002 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
1 Scope
This document gives specific requirements for halogen free polyolefin based sheathing compounds used for
halogen free communication cables with improved characteristics in the case of fire.
Compounds, described by this document, are commonly also named HFFR or HFFR-LS (halogen free,
flame/fire retardant, low smoke), see also EN 50290-2-20.
It is expected to be read in conjunction with EN 50290-2-20, the product standards EN 50288 series, EN 60794
series and other applicable product standards.
Improved characteristics in the case of fire are demonstrated by specific fire tests on cables for flame/fire
retardant applications (e.g. single or bunched cable fire test). Additional tests to prove the characteristics in case
of fire, e.g. such as smoke emission test, might also be part of the dedicated product standard or specification.
This document describes the compound types as given in Table 1.
Table 1 — Sheathing compounds
Compound grades Max. operating temperature Comment
°C
Type 1 +70 thermoplastic standard
Type 2 +90 thermoplastic, higher
temperature
Type 3 +90 crosslinked, higher
temperature
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references, the
latest edition of the referenced document (including any amendments) applies.
EN 50290-2-20, Communication cables - Part 2-20: Common design rules and construction - General
EN 60754-1, Test on gases evolved during combustion of materials from cables - Part 1: Determination of the
halogen acid gas content (IEC 60754-1)
EN 60754-2, Test on gases evolved during combustion of materials from cables - Part 2: Determination of
acidity (by pH measurement) and conductivity (IEC 60754-2)
EN 60684-2:2011, Flexible insulating sleeving - Part 2: Methods of test (IEC 60684-2:2011)
EN 60811-402, Electric and optical fibre cables - Test methods for non-metallic materials - Part 402:
Miscellaneous tests - Water absorption tests (IEC 60811-402)
EN 60811-606, Electric and optical fibre cables - Test methods for non-metallic materials - Part 606: Physical
tests - Methods for determining the density (IEC 60811-606)
EN ISO 4589-2, P
...