Vedard Alarm Security Export Sales Company
Vedard Alarm Security Export Sales Company
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FIRE DETECTION & ALARM FOR PUBLIC BUILDING AND PREMISES
Source: https://www.vedardalarm.com/fire_detection_alarm
Date: 2019/02/25
Fire Detection Alarm system is designed to alert occupants and notify the fire department.

There are three types of fire detection alarm systems. They are analogue addressable fire alarm system, conventional fire alarm system and wireless fire alarm systems.

With an addressable fire alarm system, each smoke or heat sensor and manual call point is coded with a unique address. The control panel is able to communicate with any of the addressable devices by using the address number to define which device it wishes to communicate with. When a detector or manual call point is triggered, the panel will indicate the specific device address that has been activated.

Addressable fire detection alarm systems are wired on loops rather than radial circuits which allow for audio visual warning devices such as sounders and beacons to be connected onto the same circuits as detectors and call points, which reduces installation costs. Most addressable systems now provide combined detectors, sounders and beacons in a single unit.

Addressable fire alarm system is always used at large, open places for high security fire alarm and fire surveillance.

A conventional fire detection alarm system requires a building to be divided into a number of areas called zones. The detectors and manual call points within each zone are wired on dedicated circuits. When a detector or manual call point is triggered, the panel identifies which circuit contains the triggered device and which zone the fire alarm has come from. It is then necessary to manually search the indicated zone to find the exact cause of the fire alarm.

A conventional fire alarm system needs separate alarm circuits to signal a fire to the building users.

When designing a conventional system it is important to ensure that the alarm panel has enough zone capacity for the size and complexity of the building and that the panel can support the intended sounder circuit wiring and loading.

Wireless fire detection alarm uses an array of sensors, antennas and alarms that most commonly receive and send low power radio signals to one another in much the same way cellphones communicate with Wi-Fi networks. Wireless security systems are well applied at remodeling and retrofitting of college dorms, hotels, commercial offices — prefer to not drill through concrete, rip out drywall.

There is high capacity wireless alarm panel which can equip with maximum 1000 detectors and manual call points. The wireless transmission distance can reach to 1-3km and with long range wireless alarm repeater available for longer distance. Wireless smoke detector, heat detectors are easy to be installed at each room and register address code to the alarm panel.

The alarm panel will identify each triggered detector by zone No. and alarm information which can be editted. The alarm information, alarm time, alarm zone can be printed. Wireless alarm panel is connected to PC with RS232 and with electronic map for monitored security area.
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