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一、按GB50045-95,1999年局部修订条文(工程建设标准局部修订公告第20号文),把防火卷帘划分为二类。第一类为普通防火卷帘:由于无隔热保护措施,检测时只测其背火面一定距离的辐射热和帘片是否穿火来判断其耐火极限。故达不到防火分区分隔的要求,在使用中应在卷帘两侧设独立的闭
First, according to GB50045-95, 1999 revised version of Engineering (Engineering Construction Standards Part Revision Announcement No. 20), the fire shutter is divided into two categories. The first category is ordinary fire shutter: As there is no protective measures for the insulation, the test only to measure the back surface of the fire a certain distance from the radiation heat and the curtain to wear fire to determine the fire resistance. It is not up to the requirements of the fire partition requirements, in use should be set independently on both sides of the shutter closed