According to the requirements of fixed fire extinguishing and alarm, to fully reflect the principle: fire should be "prevention first, combining prevention with control". Fire engineering works on with automatic alarm and automatic fire , must be based on the characteristics of the project, stressing the construction process.
According to the provisions of the relevant national fire regulations, fire safety facilities is mainly composed of the following systems:
1. automatic spraying fire-extinguishing system 2. carbon dioxide fire extinguishing system 3. smoke control system 4. fire radio system 5. evacuation and emergency lighting systems 6. fire water-supplying system. The above system is both independent of each system and are interrelated, and its independence lies in that each one plays a different role. Interconnectedness of all the systems, which are controlled by the command center, coordinate with each other, complete operation from discoverying fire toextinguish the fire, so that the fire losses arrive to a minimum course. Each of the above systems, both unified action, but also a separate action, when unified, can only be performed by the control center, when separated, operated by the staff of each system.Both of integrity and independence.
The various types of detectors monitor the fire situation environment, once fire occurs, the detector will send a message to alarm controller and the police, and then transferred the information to the CRT by the alarm controller, and confirm the alarm signal, transmit the alarm information to the control center. After the control center reconfirmed the information, cut off power supply(general use), turn on emergency lighting and evacuation lights, turn on the smoke exhaust facility, broadcast fire information into control center area, guiding all of persons sparsing, and transmitthe information to the relevant departments, start the fire pump, start fire shutter and fire doors, closing fire dampers, will separate fire area, start fire extinguishing systems, extinguishing fire in fire area.
