共查询到20条相似文献,搜索用时 62 毫秒
1.
梁东 《消防技术与产品信息》2013,(1):70-71,52
阐述了国外对电缆,特别是对IT行业、电信业、消防通信和火灾报警系统等使用的数据通信电缆的耐火性能,以及相关标准的具体要求,介绍了耐火电缆的种类和分类试验标准。 相似文献
2.
3.
5.
6.
7.
8.
在研究国内外耐火电缆试验标准和检测装置的最新进展基础上,结合计算机工控测量技术,设计了一套基于485总线的电缆耐火特性试验装置。该装置在上位机软件的集中控制下,自动完成电缆耐火特性试验流程,并给出耐火电缆的耐火等级评定。该装置具有较高的自动化程度,实际运行效果良好,满足了耐火电缆生产环节的质量检测需求。 相似文献
9.
对母线槽和预分支电缆在工程应用中的发展情况做了简单概述,详细地对比了母线槽和预分支电缆的主要性能、施工安装及经济性等方面内容,对母线槽和预分支电缆在工程中的选用情况做出了总结。 相似文献
10.
本文通过在电缆防火涂料中添加超细耐火材料 ,在不影响其他性能的前提下 ,提高电缆防火涂料的耐火性能 ,按耐火电缆标准检测在火中保持通电可达 36分钟 相似文献
11.
钢屋盖结构防火的性能化消防工程分析 总被引:1,自引:0,他引:1
因为建筑学上和构造上的原因,越来越多的建筑设计采用了钢结构。为了保证建筑结构构件的完整性,建筑规范提出了结构耐火性能的要求。但是,已规定的要求没有促进具有良好经济效益的设计,并且假定遵照规范是达到安全等级的唯一途径。本论文提出采用以性能设计为基础的消防工程理论方法来证明火灾中钢构件的性能。消防工程准则已发展至符合规范的要求,并能保证结构在火灾中的安全性能。本文采用一个游泳/跳水馆作为例子来讨论对钢屋顶结构进行耐火保护。本例的研究表明,游泳/跳水馆的钢屋顶结构可以不用耐火涂料,并且不会降低整个建筑的防火安全等级。 相似文献
12.
介绍了我国现行的关于消防电梯的相关标准;结合EN81-72:2003讨论了消防电梯在消防状态下的控制流程;提出了消防电梯在消防状态下的功能或装置设计。 相似文献
13.
14.
15.
Yang Lizhong Zhou Xiaodong Deng Zhihua Fan Weicheng Wang Qingan 《Fire Safety Journal》2002,37(8):785-802
This paper describes the fire situation of China in 1998. Fire statistics data have been analyzed with a view to understand the characteristics of fire accidents, including vocation and location distribution, cause analysis, monthly frequency and frequency of fires by time of day etc. It is revealed that specific work on fire protection should be taken so as to meet the demands of the society. In addition, some of the major fire accidents are also recapitulated briefly. Finally, the study highlights the importance to carry out fire statistics and gives some suggestions. 相似文献
16.
Recently, Magnesium Oxide (MgO) board has been widely used in LSF wall systems because of its improved acoustic properties, impact resistance, structural strength and serviceability. However, their thermal properties and fire performance have not been fully investigated. Therefore, in this research study thermal properties of two different types of MgO boards available in Australia were measured and their fire performance was investigated using three full-scale fire tests of LSF walls lined with two types of MgO board. Although the tests were conducted on two different types of MgO boards with different configurations, the fire test results gave a fire resistance level (FRL) of 30 min, in which the failure was initiated by integrity of the board with either board cracking or board joint opening. This paper presents the details of the thermal property tests and the three full-scale fire tests, and their results. In addition, the effects of different MgO boards, joint configurations and compounds, noggings, screw fastening techniques and cavity insulation on the fire performance of LSF walls are also presented. 相似文献
17.
Igor Oleszkiewicz 《Fire Technology》1990,26(4):357-375
A segment of the on-going research program on fire spread via exterior walls conducted at the Institute for Research in Construction of the National Research Council of Canada is described. The research includes full-scale experimental studies of fire exposure to exterior walls, fire hazards associated with the use of combustible materials, and the development of new test methods for assessing the flammability of combustible cladding. Correlations between the results of a new full-scale test and standard flame spread tests (Steiner tunnel test, radiant panel test, roof deck test) were investigated. A prototype of a reduced-scale test, the vertical channel test, is described. It was found that, at present, the full-scale test is the most appropriate method to evaluate the fire hazards of combustible wall assemblies. 相似文献
18.
阐述火灾自动报警系统的构成,以及系统设计中涉及的几个基本理念;分析火灾发生、发展的基本过程及各阶段之间的关系;解释不同类型火灾探测器报警信号的含义;提出火灾确认与联动编程,以及切断发生火灾相关区域非消防电源的消防联动设计基本理念;给出了联动设计中联动设备的时序。 相似文献
19.
本文根据某污水处理厂蛋形消化池火灾过程,建立热传导数学模型。对火场持续时间、火场温度、混凝土的热容、混凝土的热导率、大气温度、混凝土表面热交换强度等参量进行合理取值,进行计算分析,得到不同深度、不同时刻混凝土的温度场。根据混凝土、钢筋和预应力钢绞线在不同持荷条件下的化学稳定性、热力学特性,实现蛋形消化池钢筋混凝土预应力结构的火灾损伤定量分析,为蛋形消化池的火灾结构安全鉴定提供理论依据。 相似文献
20.
本文介绍了福建体育职业技术学院田径训练馆消防供水系统结合自身情况和已有的工程条件进行设计的情况,并总结了三条经验做为类似工程的参考。 相似文献