Fire Tests
Testing standards:
EN 50399
EN 60332-1-2
EN 61034-2
EN 50267-2-3
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
-Determination of fire class燃烧等级的确定
-Additional classification flaming droplets / particles额外等级划分 燃烧飞沫/粒子
General test procedure
* Several cable samples, fixed side by side on a cable ladder, are exposed to fire in a fire chamber
按照特殊要求配备入风及排气功能的燃烧箱
* The developing exhaust gases are analyzed regarding temperature and oxygen / carbon dioxide content, which gives information about the heat release
具有对温度测量，二氧化碳含量，释热量监控等功能
* A light beam in the exhaust pipe gives information about the smoke density光线传输分析
* The occurrence of flaming droplets is checked during the flame impingement 燃烧时飞沫产生
* Fire test with 20.5 kW or 30.0 kW power
燃烧测试使用的是热功率为20.5或30.0千瓦的喷枪
* Flame impingement: 20 minutes 喷枪持续时间：20分钟
EN 50399
* Measuring parameters:
- FS: Flame Spread火焰蔓延速度
- Peak HRR: Max. Heat Release Rate最大释热率
- Peak SPR: Max. Smoke Production Rate最大释烟率
- THR1200s: Total Heat Release value总释热量
during flame impingement
- TSP1200: Total Smoke Production value
during flame impingement总释烟量
- FIGRA: FIGRA-Index燃烧增长率指数
- The occurrence of flaming droplets and their duration of burning 燃烧飞沫及燃烧持续时间
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