The core function of automatic fire alarm system of fire fighting equipment is to find fire as soon as possible and start relevant alarm in time, fire prevention, smoke prevention and fire extinguishing equipment. It plays a very important role in discovering and controlling the initial fire of buildings. Technical fire prevention is an important means of building fire prevention. Any link of automatic fire alarm system in quality system selection, installation and commissioning will leave fatal problems to the system. There are construction hidden dangers in the automatic fire alarm system of some buildings, which directly restricts the linkage performance of the system and affects and threatens the fire safety of buildings and places.

一存在的问题及原因：

I. existing problems and causes:

体系本身存在质量缺陷或未针对具体场所选择体系。在实际工作中，发现一个项目中报警系统的主机探测器和手动警按钮不是同一生产地，不是同一批次的产品，而是厂家便宜的设备，多个厂家的产品混入一个系统。此外，电子领域的竞争非常激烈。为了保证企业的技术开发利益，各厂家的产品技术参数不同，互不兼容。据对全市火灾自动报警系统的调查统计，无法正常运行的火灾自动报警系统占总数的20%。

The system itself has quality defects or the system is not selected for specific places. In actual work, it is found that the host detector and manual alarm button of the alarm system in a project are not the same place of production or the same batch of products, but the cheap equipment of manufacturers, and the products of multiple manufacturers are mixed into one system. In addition, the competition in the electronic field is very fierce. In order to ensure the technological development interests of enterprises, the product technical parameters of various manufacturers are different and incompatible with each other. According to the investigation and statistics of the city's automatic fire alarm system, the automatic fire alarm system that cannot operate normally accounts for 20% of the total.

施工标准不高，导致系统功能无法正常发挥。从实际验收项目的情况来看，生产企业直接安装调试的产品系统功能相对完整，而消防工程建设单位安装调试的系统功能往往存在诸多缺陷。原因如下：

The construction standard is not high, which leads to the failure of the system function. From the actual acceptance of the project, the product system functions directly installed and debugged by the production enterprise are relatively complete, while the system functions installed and debugged by the fire engineering construction unit often have many defects. The reasons are as follows:

（1）消防工程施工单位机械地执行规范与产品的结合点，导致系统综合功能异常运行，有的故意降低信号传输线的绝缘强度。（2） 在建筑上偷工减料。为了节约成本，一些施工单位人为减少了控制模块，导致系统功能运行异常，一些故障降低了信号传输线的绝缘强度。

(1) Fire engineering construction units mechanically implement the combination point of specifications and products, resulting in abnormal operation of system comprehensive functions, and some deliberately reduce the insulation strength of signal transmission lines. (2) Cut corners in construction. In order to save costs, some construction units artificially reduced the control module, resulting in abnormal system function operation, and some faults reduced the insulation strength of the signal transmission line.

3） 消防器材厂家施工单位不进行系统调试或调试后系统功能无法较大化。常见的是，正当功能无法实现。

3) The construction unit of fire equipment manufacturer does not conduct system commissioning or the system function cannot be maximized after commissioning. Often, legitimate functions cannot be realized.