电缆桥架又名智能建筑的弱电系统，通常有多个信息监控和通信设施诸如BA（楼宇自动化）、OA（办公自动化）、CA（通信自动化）等相应的系统组成,电缆桥架分为槽式、托盘式和梯架式等结构，由支架、托臂和安装附件等组成。选型时应注意桥架的所有零部件是否符合系列化、通用化、标准化的成套要求。
Cable bridge, also known as weak current system of intelligent building, usually consists of multiple information monitoring and communication facilities such as BA (building automation), OA (office automation), Ca (Communication Automation) and other corresponding systems. Cable bridge is divided into slot type, tray type and ladder type structures, consisting of bracket, bracket and installation accessories. Attention shall be paid to whether all parts of the bridge meet the requirements of serialization, generalization and standardization.
建筑物内桥架可以独立架设，也可以附设在各种建（构）筑物和管廊支架上，应体现结构简单，造型美观、配置灵活和维修方便等特点，全部零件均需进行镀锌处理，安装在建筑物外露天的桥架，如果是在邻近海边或属于腐蚀区，则材质必须具有防腐、耐潮气。
The bridge in the building can be erected independently or attached to various buildings (structures) and pipe gallery supports, which should reflect the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance. All parts need to be galvanized, and the bridge installed outside the building in the open air. If it is near the sea or belongs to the corrosion area, the material must be corrosion-resistant and moisture resistant.