Firebrand production from structure combustion becomes a key factor in the magnitude of how quickly a large outdoor fire may spread. Post-fire disaster investigations suggest that attached building components, such as wood fencing assemblies are known to be prone to ignition in these fires, and may provide pathways to structure ignition. Here, a comparison of ignition results from full-scale fencing assembly experiments conducted using a full-scale wind tunnel facility, to mock-ups of full-scale fencing assemblies using the recently developed experimental capability at the National Research Institute of Fire and Disaster (NRIFD) are discussed. In both experimental facilities, the fencing assemblies were exposed to firebrand showers using custom built continuous-feed firebrand generators with size and mass distributions similar to those generated from structure combustion. Similar ignition behaviors were observed between the full-scale fencing assemblies and the mock-up of full-scale fencing assemblies. Additional experiments are required for other fencing assembly types to further verify these important findings.

中文翻译：

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使用附加木栅栏组件的模型部分了解结构点火漏洞

结构燃烧产生的火种成为室外大型火灾蔓延速度的关键因素。火灾后的调查表明，已知连接的建筑组件（例如木栅栏组件）在这些火灾中容易着火，并可能为结构点火提供途径。在这里，将使用全尺寸风洞设施进行的全尺寸围栏组件实验的点火结果与使用国家火灾和灾害研究所最近开发的实验能力的全尺寸围栏组件模型进行比较（ NRIFD) 进行了讨论。在两个实验设施中，围栏组件使用定制的连续馈送火火发生器暴露在火火淋浴中，其尺寸和质量分布类似于结构燃烧产生的那些。在全尺寸围栏组件和全尺寸围栏组件模型之间观察到类似的点火行为。其他围栏组件类型需要额外的实验来进一步验证这些重要发现。