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Extended field of application (EXAP) forreaction-to-fire Euro-classification of coppercommunication cables (CCC)
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.ORCID iD: 0000-0002-7140-4737
2016 (English)Report (Other academic)
Abstract [en]

The feasibility of an EXAP procedure for copper communication cables (CCC) has been investigated. The test set consisted of 47 different cables split into 9 families. An analysis method for quantifying the confidence of an EXAP procedure was defined.A similar EXAP procedure as for power cables was investigated, but where the safety margin sm was varied between 0% and 40% of the class limits for the corresponding Euroclasses. For power cables, and also for optical cables (OF) this safety margin was fixed to 10% of the class limits for the main classification (B2ca, Cca, and Dca) and 20% fire the smoke classes S1 and S2. For the analysed CCC it was found that the safety margin must be higher in order to obtain a confidence on the same level as for the OF EXAP already published in a Position Paper. The error rate for the OF EXAP was 2% for the main class. This error rate was obtained with a safety margin of 30% of the class limits for CCC. Even higher safety margins result in a lower error rate but a trade-off must be made between confidence in the EXAP and a reasonable, not too conservative, classification of CCC.Therefore a CCC EXAP is proposed with a safety margin sm = 30% of the class limits for the corresponding Euroclasses.Key words: EXAP, CPR, reaction to fire, copper communication cables, CCC

Place, publisher, year, edition, pages
2016. , 52 p.
Series
SP Rapport, ISSN 0284-5172 ; 2016:53
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27995ISBN: 978-91-88349-55-2 (print)OAI: oai:DiVA.org:ri-27995DiVA: diva2:1072234
Available from: 2017-02-07 Created: 2017-02-07 Last updated: 2017-07-06Bibliographically approved

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Försth, Michael
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CiteExportLink to record
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