耐火试验.空气分配系统用防火阀.第2部分：膨胀型防火阀

[中文适用范围]： 本文件规定了一种测试方法，用于确定防火挡板的耐热性，以及评估其通过空气分配系统防止火和烟从一个防火隔间蔓延到另一个防火隔间的能力。本文件描述了与膨胀型防火挡板相关的测试要求。它适用于预计被归类为 EI 挡板的膨胀型防火挡板。如果不添加机械挡板，它们就无法达到“S”分类，其中包括在环境温度下施加的泄漏限制。本文件不适用于仅用于烟雾控制系统的挡板、仅用于测试仅处理空气传输应用的防火装置或用于吊顶的挡板，因为挡板和管道的安装会对吊顶的性能产生不利影响，需要其他评估方法。注意“空气传输”是通过防火隔门（或墙壁、地板）进行的低压应用，无需与空气管道连接。 [外文原描述]： This document specifies a test method for the determination of the resistance of fire dampers to heat, and for the evaluation of their ability to prevent fire and smoke from spreading from one fire compartment to another through an air distribution system. This document describes the test requirements related to intumescent fire dampers. It is intended for intumescent fire dampers that are expected to be classified as EI dampers. Without the addition of a mechanical damper, they are unable to achieve the “S” classification, which includes a leakage limit imposed at ambient temperature. This document is not intended to be used for dampers used only in smoke control systems, for testing fire protection devices which only deal with air transfer applications, or for dampers used in suspended ceilings, as the installation of the damper and duct can have an adverse effect on the performance of the suspended ceiling, requiring other methods of evaluation. NOTE "Air transfer" is a low-pressure application through a fire separation door (or wall, floor) without any connection to an air duct.