What is a weak current system? What does the weak current system include?

Generally, it refers to the system of communication, video, intelligence and other products used below 36V safe voltage. This kind of system is collectively called weak current system.

Include computer network system engineering, building equipment automatic control system engineering, security monitoring and burglar alarm system engineering, smart card system engineering, communication system engineering, satellite TV system engineering, garage management system engineering, computer network system engineering, broadcasting system engineering, conference system engineering, video-on-demand system engineering, intelligent community comprehensive property management system engineering, visual conference system engineering, large-screen display system engineering, intelligent lighting, audio control system engineering and video-on-demand system engineering.

According to the intensity of power transmission, power applications can be divided into two categories: strong electricity and weak electricity. Building and building electricity generally refers to high-voltage alternating current above 220 V and 50 Hz. It mainly provides people with electric energy and converts it into other energy sources, such as air conditioning electricity, lighting electricity, power electricity and so on. There are two main types of weak electricity in intelligent buildings. One is low-voltage electric energy such as safe voltage grade and control voltage specified by the state, which is divided into AC and DC, with AC below 36V and DC below 24V, such as 24V DC control power supply or emergency lighting standby power supply. The other is information sources including sound, images and data, such as telephone, television and computer information.