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Homepage>BS Standards>13 ENVIRONMENT. HEALTH PROTECTION. SAFETY>13.220 Protection against fire>13.220.40 Ignitability and burning behaviour of materials and products>20/30406811 DC BS EN 50399. Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results
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immediate downloadReleased: 2020-03-13
20/30406811 DC BS EN 50399. Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results

20/30406811 DC

BS EN 50399. Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results

CURRENCY
LANGUAGE
English
Standard number:20/30406811 DC
Pages:81
Released:2020-03-13
Status:Draft for Comment
DESCRIPTION
This standard 20/30406811 DC BS EN 50399. Common test methods for cables under fire conditions. Heat release and smoke production measurement on cables during flame spread test. Test apparatus, procedures, results is classified in these ICS categories:
  • 29.060.20 Cables
  • 13.220.40 Ignitability and burning behaviour of materials and products
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 electric cables under defined conditions. NOTE For the purpose of this standard, the term “electric cable” covers all power, control and communication cables, including optical fibre cables and hybrid cables used for the conveyance of energy and/or signals. EN 50399 details the apparatus for the fire propagation testing 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 classes [2, 6] 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 [5], which is reflected in the requirements of this standard.
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