1. signal wire: generally, it is a flame-retardant/fire-resistant red-blue stranded wire (red positive electrode and blue negative electrode), and the signal module of manual alarm button of smoke detector and temperature detector is connected to the signal wire. Such as water flow indicator, alarm valve, fire valve, quick release valve, etc. , connected to the signal line through the signal module, and connected to the alarm host.
2. Power cord: generally, it is flame-retardant/fire-resistant red-black twisted pair or flame-retardant BV hard cord (red positive pole and black negative pole), and the control module needs to connect the signal cord and the power cord at the same time. If the alarm bell has an address, connect it directly to the signal line and power line. If there is no address, you need to connect the signal line and power line through the control output module. Such as air supply valve, smoke exhaust valve, electric valve, electric smoke exhaust port, blower, air supply fan, smoke exhaust fan, air compressor control and forced cut-off of non-fire power supply, the elevator is connected with the alarm host through the control module, signal line and power line.
3. Hard cable: Some equipment needs to be directly controlled by the fire control room through multi-line manual control panel, such as fire pump, spray pump, make-up fan and smoke exhaust fan. Generally, it is 6/4 core sheathed cable or 6/4 flame retardant BV hard wire according to different equipment manufacturers. Generally, BV hard wires can be distinguished by various colors.
4. Broadcast cable: generally, flame-retardant/fire-resistant red-black twisted pair is used to connect the fire-fighting broadcast host and the broadcast speaker in the fire-fighting control room.
5. Telephone line: generally, it is a white flame-retardant parallel cord, which is used to connect the telephone host in the fire control room with the fire telephone and telephone jack.
Extended data:
Fire alarm equipment is also an automatic fire alarm electrical equipment. Common fire alarm equipment includes various fire detectors, manual alarm buttons, fire hydrant pump buttons, alarms, field execution modules, etc. These devices should be connected to the fire alarm host for centralized monitoring.
The fire detector judges whether there is a fire by detecting some physical phenomena when the fire occurs.
Fire detectors are a big category, which can be divided into different categories according to different standards:
(1) can be divided into smoke detectors, temperature detectors, flame detectors and special gas detectors according to the types of information collected on site.
(2) According to the installation mode of equipment in the field, it can be divided into point detectors and line detectors.
(3) According to the connection mode between the detector and the controller, it is divided into bus system and multi-line system; Among them, the bus system is divided into coding and non-coding; Codes are divided into electronic codes and dip switch codes.
(4) Each detector can be divided into different subclasses, and the fire detector is an important member of the fire alarm equipment family.
References:
Baidu encyclopedia-fire alarm equipment