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硅橡胶玻纤管EN45545防火试验的难易程度
2022-06-21 16:05:00 【中科易朔】

由玻纤和硅胶制成的耐高温防火防护套管,常用于车辆控制电缆和有关的高温防护(液压软管外的耐高温隔热防护等)。
根据经验,硅橡胶玻纤管的阻燃性能良好,多数都可以很好地满足轨道交通非金属阻燃标准EN45545-2:2020 R22/R23 HL3最高等级要求。
EN45545 R22标准指标要求
EN45545-2 R22HL1等级要求:
ISO4589-2 OI 氧指数≥28%,ISO5659-2烟密度≤600;NFX70-100毒性≤1.2
EN45545-2 R22HL2等级要求:
ISO4589-2 OI 氧指数≥28%,ISO5659-2烟密度≤300;NFX70-100毒性≤0.9
EN45545-2 R22HL3等级要求:
ISO4589-2 OI 氧指数≥32%,ISO5659-2烟密度≤150;NFX70-100毒性≤0.75
EN45545-2R22/R23防火检测 - 测试方法
ISO 4589-2 塑料-用氧指数法测定燃烧行为-第2部分:室温测试
ISO 4589-2 Plastics-Determination of burning behaviour by oxygen index –Part 2: Ambient-temperature test
ISO 5659-2单烟箱光密度测定
ISO 5659-2Determination of optical density by a single-chamber test
EN 17084铁路车辆防火-材料和元件的毒性测试
EN 17084 Fire protection in railway vehicles- Toxicity test of materials and components
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