Electrical knowledge: What's the difference between strong current and weak current?

Conceptually, strong electricity and weak electricity are generally easy to distinguish, and the main difference is the different uses. Strong electricity is used as power supply and weak electricity is used for information transmission.

In engineering, high voltage generally refers to the installation of building power, lighting, sockets and distribution rooms. According to different national standards, the power equipment and pipelines of 1 10V or 220 are basically installed.

Weak current refers to fire fighting, intelligence and other work. Generally, the electricity used for installing equipment is basically low-voltage, including fire fighting, network, broadcasting, building intercom, monitoring and security, building automation and so on.