What is the difference between weak current and strong current? Who can talk about it?

conceptually, strong electricity and weak electricity are generally easy to distinguish, and the main difference is the different uses. Strong electricity is used as a power source, while weak electricity is used for information transmission. In the technical field of building electrical appliances, people used to divide it into two parts: strong electricity (electricity) and weak electricity (information). There are both connections and differences between the two. Generally speaking, strong electricity is handled by energy (electric power), which is characterized by high voltage, high current, high power and low frequency. The main consideration is to reduce loss and improve efficiency. Weak electricity is mainly handled by information, that is, information transmission and control, which is characterized by low voltage, low current, low power and high frequency. The main consideration is the effect of information transmission, such as information transmission. Generally speaking, weak current engineering includes television engineering, communication engineering, fire fighting engineering, security engineering, video engineering, etc. and comprehensive wiring engineering serving the above engineering. Weak current is aimed at strong current. High voltage =(38/22), regardless of high voltage.