What is the weak current system?

Electric power can be divided into two kinds: strong electricity and weak electricity according to power transmission power. The construction and the building complex electricity generally refers to the exchange 220v50hz and above strong electricity. Mainly to provide people with power energy, the conversion of electricity to other energy sources, such as air-conditioning electricity, lighting electricity, power consumption and so on. There are two main types of weak electricity in intelligent buildings, one is the state-defined safety voltage level and control voltage, such as low-voltage power, there is AC and DC, ac 36V below, DC 24V below, such as 24V DC control power, or emergency lighting standby power supply. The other is the information source containing voice, image, data and so on, such as telephone, TV, computer information. People used to call the technology of weak electricity as weak technology. It can be seen that the basic meaning of weak current technology of intelligent building is still the original weak technology. But with the rapid development of modern weak and high technology, the weak electricity technology in intelligent building is more and more widely used.

Under normal circumstances, weak systems engineering refers to the second category of applications. Mainly include: 1, television signal engineering, such as television monitoring system, cable TV. 2, communication engineering, such as telephone. 3, intelligent fire Protection works. 4, sound reinforcement and sound engineering, such as the background music broadcast in the community, the background music in the building. 5, the comprehensive wiring project, mainly uses in the computer network. With the rapid development of computer technology, the rapid and powerful software and hardware functions, a variety of weak systems engineering and computer technology perfect combination, so that the past classification is no longer as clear as before. The integration of all kinds of projects is system integration.

Common weak electricity system work voltage includes: 24VAC, 16.5VAC, 12VDC, sometimes 220VAC also calculate weak system, for example, some by the operating voltage of the camera is 220VAC, we can not put them into the strong power system.

Weak current system is mainly aimed at buildings, including buildings, communities, airports, terminals, railways, highways and so on.

Common weak-current systems include: CCTV monitoring System, anti-theft alarm system, access control system, electronic patrol system, car park management System, visual intercom system, home intelligent system and security system, background music system, LED display system, plasma splicing screen system, DLP big screen system, three-table CC system, Building automation system, lightning protection and grounding system, paging intercom and professional intercom system, weak pipeline system, UPS uninterruptible power supply system, room system, integrated wiring system, computer LAN system, property management system, multi-functional conference room system, cable TV system, satellite TV system, satellite communication system, fire system, Telephone communication system, hotel management system, VOD system, human resource management system, etc.