What is weak current security?

Weak electricity is relative to strong electricity.

In the power industry, weak current refers to the system with voltage below 380V, that is, the low voltage side of power transformer.

Outside the power industry, weak current generally refers to DC circuits or audio, video lines, network lines and telephone lines, and the DC voltage is generally within 32V. It is relative to dynamic energy.

Weak current and security are put together, which refers to weak current systems or projects.

There are two main types of weak current systems. 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 systems that contain information such as sound, images and data, such as telephone, television and computer systems.

Common weak current systems include: ccTV monitoring system, burglar alarm system, entrance guard system, electronic patrol system, parking lot management system, visual intercom system, home intelligent system and security system, background music system, LED display system, plasma splicing screen system, DLP large screen system, three-meter CC system, building automatic control system, lightning protection and grounding system, paging intercom and professional intercom system, computer room system, integrated wiring system, Computer local area network system, multifunctional conference room system, cable TV system, satellite TV system, satellite communication system, fire fighting system, telephone communication system, hotel management system, video.

Security system refers to intrusion alarm system, video security monitoring system, access control system, explosion-proof security system, etc. For the purpose of maintaining social security, it is composed of safety products and other related products; Or an electronic system or network composed or integrated by these systems as subsystems.