BS EN 50399:2011+A1:2016 Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results
EN 50399 specifies the apparatus and methods of test for the assessment of vertical flame spread, heat
release, smoke production and occurrence of flaming droplets/particles of vertically-mounted bunched
wires or cables, electrical or optical, under defined conditions.
NOTE For the purpose of this standard the term "electric wire or cable" covers all insulated metallic conductor cables used for the
conveyance of energy or signals.
EN 50399 details the apparatus and the arrangement and calibration of the instrumentation to be installed
in order to measure the heat release and the smoke production during the test. The combustion gases are
collected in a hood above the test chamber and conveyed through an exhaust system, which allows the
measurement of heat release rate and smoke production. Test procedures to be used for type approval
testing for classification of cables in Euroclasses B1ca, B2ca, Cca and Dca are given. Cable installation on
the test ladder and the volume of air passing through the chamber are in accordance with the Commission
Decision 2006/751/EC [2] which is reflected in the requirements of this standard.
The apparatus described in this standard shall be used in conjunction with that described in
EN 60332-3-10.
BS EN 50399:2011+A1:2016 history
2022BS EN 50399:2022 Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results
1970BS EN 50399:2011+A1:2016 Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results
2011BS EN 50399:2011 Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results