防火卷帘门耐火极限的测试方法有两种

大型商场、展览综合楼等如因面积过大，超过了防火分区大允许面积规定，在采用防火墙作防火分隔时，不便于经营和管理，便更多地采用了防火卷帘替代防火墙。那你知道防火卷帘门耐火极限的测试方法吗？下面济南防火卷帘门安装维修人员为您讲解。

If the large area of large shopping malls and exhibition complex buildings exceeds the large allowable area of the fire compartment, and it is not convenient for operation and management to use the firewall as the fire compartment, the fire shutter is more used to replace the firewall. Do you know the test method of fire resistance limit of fire resistant rolling shutter door? Next, Jinan fire shutter door installation and maintenance personnel will explain to you.

实际上，防火卷帘门耐火极限的测试方法有两种：

In fact, there are two methods to test the fire resistance limit of fire shutter doors:

一是防火卷帘门按照现行标准进行耐火试验，包括背火面温升在内的各项判定条件判定;

First, fire resistance test shall be carried out for fire resistant rolling shutter doors according to the current standards, and the judgment conditions including the temperature rise of the back fire surface shall be determined;

二是同样按照标准进行耐火试验，根据该标准中关于无隔热保护层的铁皮卷帘免测背火面温升的规定和产品标准要求，只以距背火面一定距离的辐射热强度和帘面是否穿火来判定卷帘耐火极限的卷帘。

Second, the fire resistance test is also carried out according to the standard. According to the provisions of the standard on the temperature rise of the iron sheet roller shutter without thermal insulation protection layer and the requirements of the product standard, the fire resistance limit of the roller shutter is determined only by the radiant heat intensity at a certain distance from the back fire surface and whether the curtain surface is through fire.

按照不包括背火面温升作耐火极限判定条件的非隔热防火卷帘门，所得耐火极限数据，远比包括背火面温升作耐火极限判定条件的隔热型防火卷帘门的耐火极限要长得多。

According to the non-insulated fire shutter door which does not include the temperature rise of the back fire surface as the fire resistance limit judgment condition, the fire resistance limit data obtained is much longer than that of the insulated fire shutter door which includes the temperature rise of the back fire surface as the fire resistance limit judgment condition.

根据测试方法将防火卷帘门划分为两类，即：普通防火卷帘门和特级防火卷帘门，普通防火卷帘门不以背火面温升为判定条件，耐火极限不低于3h时，能达到隔热防火分隔的要求;而特级防火卷帘门以背火面温升为判定条件，当耐火极限不低于3h时，则具有隔热功能，能达到防火分区分隔的要求。

According to the test method, fire shutter doors are divided into two categories, namely, ordinary fire shutter doors and special fire shutter doors. Ordinary fire shutter doors do not take the temperature rise of the back fire surface as the judgment condition, and can meet the requirements of thermal insulation and fire separation when the fire endurance is not less than 3h; The super-grade fireproof rolling shutter door takes the temperature rise of the back fire surface as the judgment condition. When the fire resistance limit is not less than 3h, it has the heat insulation function and can meet the requirements of fire compartment separation.

由于普通防火卷帘门的隔火作用达不到防火分区分隔的要求，若采用这种防火卷帘门，应在卷帘两侧设独立的闭式自动喷水系统或水幕保护。

Since the fire isolation function of ordinary fire shutter door cannot meet the requirements of fire compartment separation, if this fire shutter door is adopted, independent closed automatic sprinkler system or water curtain protection shall be set on both sides of the shutter.

近年来，消防产品市场防火卷帘门生产厂家众多，有的厂家提供的普通防火卷帘门耐火极限可达3h、4h，根据厂家提供的数据及国家有关部门检测报告，一些设计者由于不清楚防火卷帘门的测试方法，误以为防火卷帘门耐火极限可达3h、4h就可不设保护设施直接设防火分区上。

In recent years, there are many manufacturers of fire rolling shutter doors in the fire protection product market. Some manufacturers provide common fire rolling shutter doors with a fire resistance limit of 3h and 4h. According to the data provided by the manufacturer and the test report of the relevant national departments, some designers mistakenly believe that the fire resistance limit of fire rolling shutter doors can reach 3h and 4h, so they can be directly set on the fire compartment without protective facilities.

而特级防火卷帘门如双轨双帘无机复合防火卷帘门、蒸发式汽雾式防火卷帘门，其卷帘结构进行了特殊处理，按包括以背火面温升为判定条件进行测试且耐火极限能达到3h以上，可达到防火墙耐火极限要求。因此，对采用特级防火卷帘门就不必要再采用自动喷水系统保护。还有什么事项就来我们网站http://www.jnyuqilin.com咨询吧！

The special fireproof rolling shutter door, such as double-track double-curtain inorganic composite fireproof rolling shutter door and evaporative vapor fog type fireproof rolling shutter door, has been specially treated in its rolling shutter structure, and tested according to the judgment conditions including the temperature rise of the back fire surface, and the fire resistance limit can reach more than 3h, which can meet the fire resistance limit requirements of the firewall. Therefore, it is unnecessary to use automatic water spray system for the protection of super-grade fireproof rolling shutter doors. Come to our website for any other matters http://www.jnyuqilin.com Ask!