某新型电缆井防火封堵材料的试验研究

Experimental Research on fire-proof sealing material for a new kind of cable shaft

为了解某新型电缆防火封堵材料发生火灾时的耐火性能,进行火灾试验。试验结果表明,采用"标准时间-升温曲线"进行2 h火灾试验后,试件各测点的升温均没有达到180℃,且在试验过程中无火焰或热气流穿出。通过对试验结果的分析,新型电缆井防火封堵材料的耐火性能达到了2 h耐火极限的要求。

In order to know the fire resistance performance of a new kind of fire- proof sealing material for cables during the fire hazard, the fire test was carried out. The test results indicate that, the ＂standard time-temperature rise curve＂ was a- dopted to do fire test for 2 hours, the temperatures of specimensj measuring points all have not reached 180 ℃ ,and there was no flame or hot air coming out in the testing process. Through new kind of fire- 2 h fire resistance limit.