作为RP-1203的后续行动，本项目（RP-1447）由ASHRAE发起，旨在调查是否需要压力补偿系统来维持加压楼梯井内的稳定状态。对于RP-1447，加拿大国家研究委员会（NRC）在一个10层的设施中进行了全面的火灾实验。利用试验结果进行了可维持性分析，以研究带压力补偿和不带压力补偿的加压楼梯间防烟系统的性能。主要目的是在发现需要压力补偿系统的情况下，对两种方法的可维持性与时间进行量化比较。 在NRC的10层测试设施中进行了全尺寸火灾实验。该设施的楼梯间被加压。测试是在消防楼层的楼梯间门关闭，其他楼层的选定楼梯间门打开的情况下进行的。测试包括以下测试参数:有喷水灭火和无喷水灭火；补偿和非补偿楼梯间增压系统；以及打开的楼梯间门的数量和位置。本报告提供:1）在NRC 10层设施中进行的全面火灾试验的详细说明，2）试验计划的推理说明，以及3）试验期间记录的试验数据，用于确定楼梯间和火灾楼层的可维持性。

As a follow-up to RP-1203, the present project (RP-1447) was initiated by ASHRAE to investigate whether pressure compensating systems are needed to maintain tenable conditions within pressurized stairwells. For RP-1447, the National Research Council of Canada (NRC) conducted full-scale fire experiments in a 10-storey facility. A tenability analysis was conducted using the experimental test results to investigate the performance of pressurized stairwell smoke control systems with and without pressure compensation. The main objective is to develop a quantifiable comparison of tenability versus time for the two approaches in the case that the pressure compensating system is found to be needed. Full-scale fire experiments were conducted in the NRC 10-storey test facility. The stairwell in the facility was pressurized. The tests were conducted with the stairwell door on the fire floor closed and selected stairwell doors on other floors open. Tests were conducted covering the following test parameters:Sprinklered and non-sprinklered fires;Compensating and non-compensating stairwell pressurization systems; andNumber and location of open stairwell doors.This report provides: 1) a detailed description of the full-scale fire tests conducted in the NRC 10-storey facility, 2) a description of the reasoning underlying the test plan, and 3) test data recorded during the tests that were used to determine tenability in the stairwell and on the fire floor.