mso-hansi-font-family:"Times New Roman"">刚性结构 mso-hansi-font-family:"Times New Roman"">系统组成, "Times New Roman"">以BA 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">为例, mso-hansi-font-family:"Times New Roman"">除了建筑物本身的供电、供排水、空调、电梯和停车场等电缆桥架设施配置必要的信息监控外, mso-hansi-font-family:"Times New Roman"">还有SA( "Times New Roman"">安保自动化) 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">、FA( mso-hansi-font-family:"Times New Roman"">消防自动化) "Times New Roman"">等若干个子系统, "Times New Roman"">实现系统集成或部分系统集成。根据建筑主体的功能需求来确定其等级和内容, "Times New Roman"">这些系统包括不同类别的电缆和导线, "Times New Roman"">其中有些是属于有源缆线( "Times New Roman"">电源电压一般为DC12/24/48V "Times New Roman"">和AC220V), "Times New Roman"">由于建筑行业的不断的发展电缆桥架也在与时俱进并不断得到市场的认可和接受电缆桥架行业的国产化力度，产品选用优质冷轧钢板，得到广泛关注产品选用优质冷轧钢板，表面工艺有冷镀锌、热镀锌、静电喷涂、防火涂料、烤漆等。其中产品广泛用于石油化工，冶金，电力，学校通讯，高层建筑等领域，具有外形美观，耐腐蚀性强，通用性广泛，安装灵活方便，品种齐全等特点。

, mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">电缆桥架作为承载各种电缆敷设的载体, mso-hansi-font-family:"Times New Roman"">从属于布线的需要, "Times New Roman"">同样应遵循上述原则加以实施。由于建筑物内多种管线平行交叉, "Times New Roman"">空间有限, 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">特别是大型写字楼、金融商厦、酒店、场馆等建筑, mso-hansi-font-family:"Times New Roman"">信息点密集, "Times New Roman"">缆线敷设除了采用楼板沟槽和墙内埋管方式外, "Times New Roman"">在竖井和屋内天棚吊顶内广泛采用电缆桥架, "Times New Roman"">提供不同走向的布线, "Times New Roman"">弱电系统的各种缆线分类布放在桥架内, "Times New Roman"">其路由选择和安装方式要根据走向的要求, "Times New Roman"">并结合建筑结构和空调、电气等管线协商的位置加以确定, "Times New Roman"">无源缆线不能与有源电缆桥架并排铺设, "Times New Roman"">受条件所限铺放同一桥架内, "Times New Roman"">其间必须采用金属隔板分设, "Times New Roman"">引出的缆线尽量避免平面交叉, "Times New Roman"">桥架穿越楼板, "Times New Roman"">墙体或伸缩缝时, "Times New Roman"">应该在建筑图上标出予留相应的空洞和位置, "Times New Roman"">避免因遗漏等到施工时临时钻空, "Times New Roman"">可能伤及土建结构。为了防止电磁辐射的干扰(EMC) "Times New Roman"">，在电缆桥架的设计中，应考虑桥架的封闭性。