Communication cables Common design rules and construction. Halogen free polyolefin based sheathing compounds for cables having improved flame and fire properties (HFFR)

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Hardcopy , PDF

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English

Published date

12-05-2021

Publisher

British Standards Institution

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.

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 EN50290-2-20. It is expected to be read in conjunction with EN50290-2-20, the product standards EN50288 series, EN60794 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. Table1 Sheathing compounds Compound grades Max. operating temperature °C Comment Type1 +70 thermoplastic standard Type2 +90 thermoplastic, higher temperature Type3 +90 crosslinked, higher temperature

Committee	EPL/46
DocumentType	Standard
ISBN	9780539147193
Pages	12
PublisherName	British Standards Institution
Status	Current
Supersedes	BS EN 50290-2-27:2002+A1:2007

Standards	Relationship
EN 50290-2-27:2021	Identical

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BS EN 50290-2-27:2021

Communication cables Common design rules and construction. Halogen free polyolefin based sheathing compounds for cables having improved flame and fire properties (HFFR)

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