What kinds of weak current system construction include?

The construction drawing of weak current system includes system drawing, floor plan and detailed drawing, etc.

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.