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139彩票
139彩票
139彩票
139彩票
139彩票

介绍

简介:Standard EN45545 EN45545 标准 To ensure the safety of people and equipment in railway applications 确保铁路应用中的人员及设备的安全 With the introduction and ratification of EN45545 a unification of fire safety standards i …… 价格:

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Standard EN45545
EN45545 标准
To ensure the safety of people and equipment in railway applications 
确保铁路应用中的人员及设备的安全 
With the introduction and ratification of EN45545 a unification of fire safety standards is taking  place in Europe.
随着 EN 45545 的引进和认可,欧洲正在实行统一防火安全的标准。

EN 45545-1 contains basic definitions as well as general rules on how to classify rail vehicles. 
Train operating and train design categories are defined in order to assess fire risk. Hazard levels are defined based upon these classifications.
EN 45545-1,不但包含基本的概述,而且还包括划分轨道车辆类别的常规规则。评估火灾风险是根据轨道车辆的运营和设计类别,并且相关的危险等级是根据此等类别进行定义的。

EN 45545-2 describes the material requirements for the different hazard levels (HL1, HL2 and HL3). Table R22 sets the flammability, smoke emission and toxicity requirements for internal applications. 
Table R23 does the same for external applications. 
EN 45545-2 描述了对于材料的不同危险等级(HL1,HL2和HL3)要求。 表 R22 设定车内应用对于易燃性,烟密度和毒性的要求。
表 R23 设定外部应用的相同要求。

EN 45545-3 describes the fire resistance requirements for fire barriers. 
Unless designed with care, locations where cables within cable protection conduits are fed through  fire barriers could represent potential weak points through which fire, heat or gas could penetrate.  
EN 45545-3 sets E, I and W requirements for 10 different fire protection installation situations in acc. with the operating categories defined in EN 45545-1:

EN45545-3 描述了防火屏障的耐火要求。穿过防火屏障的电缆?;と砉苣诘牡缋氯绻挥芯纳杓?,那么火、热或气体就可能突破这个潜在的薄弱点。
根据 EN 45545-1 运营类别中定义的 10 种不同的防火屏障安装情况,EN 45545-3 设置 E、I 和 W 的要求:

- E (integrity), with a performance rating of E15, E30 (in minutes)
  E(完整性),含等级评定 E15, E30 (分钟)   
- I (heat insulation)
  I(热绝缘)
- W (radiation)
  W(辐射)

E15 is sufficient for several of the 10 installation situations and operating categories. 

对于 10 种安装情况中的许多情况和运营类别,E15 是足够的。

E30, the highest requirement is specified for fire barriers between luggage compartments and passenger areas or the driver‘s cab for train operating categories 3 and 4. In such situations the fire must be prevented from breaking through for at least 30 minutes. 
耐火完整性要求最高的 E30 评级的防火屏障,是安装在行李舱和乘客区或运营类别 3 和 4 的驾驶舱。若发生火灾情况,必须保证至少 30 分钟内防止火灾爆发。

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