NFPA 557-2020 Standard for Determination of Fire Loads for Use in Structural Fire Protection Design
NFPA 557-2020 结构防火设计用火灾荷载测定标准
火灾荷载Fire Load是衡量建筑物室内所容纳可燃物数量多少的一个参数,是研究火灾全面发展阶段性状的基本要素。简单一点,就是建筑物容积所有可燃物由于燃烧而可能释放出的总能量。在建筑物发生火灾时火灾荷载直接决定着火灾持续时间的长短和室内温度的变化情况。因而,在进行建筑结构防火设计时,很有必要了解火灾荷载的概念,合理确定火灾荷载数值。南京睿督公司免费咨询电话：025-86583475
1.1* Scope. The scope of this standard is the determination of the fire load and fire load density to be used as the basis for the evaluation and design of the structural fire performance of a building.
1.1.1 The determination of a design-basis fire is outside the scope of this standard.
1.1.2* This document is not intended to address facilities for storage of hazardous materials.
1.2 Purpose. The purpose of this standard is to provide standard methods and values for use in the determination of fire loads and fire load densities for design-basis fires, which is done using a risk framework
相关阅读：
NFPA285防火等级测试 http://www.fire-test.com/teststandard/usa/7264.html
ASTM E84 https://www.fire-test.cn/newsinfo/2357293.html
ULC S102/ULC S135加拿大防火标 http://www.fire-test.com/newscenter/news/6708.html
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