Full scale fire tests for cables in plenums

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TypeArticle
Journal titleASHRAE Transactions
Volume110
IssuePt. 1
Pages652665; # of pages: 14
SubjectFire
AbstractIn a joint research project involving ASHRAE and the National Research Council Canada (RP 1108), the effect of fires involving communication cable installed in air-handling plenums was investigated. The project included surveys in North American office buildings to determine the type and quantities of cable in return air plenum and fire scenarios that could potentially ignite the cables. It also included fire tests performed at three scales: small, medium and full. The bench-scale tests were conducted using a cone calorimeter. In addition, medium-scale tests were conducted using a modified standard room fire test facility. Testsconducted in this facility were used to determine the behaviour of communications cable with exposure to air heated to 200, 325 and 450°C as well as direct flame impingement. Finally, a series of full-scale fire tests were conducted in a full-scale facility set-up specifically for this project. Tests in this facility were used to determine the behaviour of communication cables in plenums with fully-developed fires in the compartment below the plenum. In this paper, data from the tests are used to investigate the potential effect of fires involving cables in plenum spaces on the hazard to building occupants in compartments contaminated by smoke distributed through a building HVAC system.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number47360
16632
NPARC number20377026
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Record identifier48545ba8-d88e-48ac-bce0-0af38413725b
Record created2012-07-24
Record modified2016-05-09
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