PowerPoint Presentation

Fire Alarm presentationAlatheer GroupProjects DepartmentEng. Muhammad Eid QusaybatieIntroductionFire systems importance.Variation of inputs and outputs.Variation of systems:Fire alarm.Voice alarm system.Fire telephone.Fire extinguishing.Extinguishing materials.

Devices smoke detectorPlaces: normal rooms and corridors.Ionized detectors.Optical detectors.Supply: 24 V dc.Contact: N/O.Area: 80sqm.Height: 6m.

Devices heat detectorPlaces: kitchens, parking, machines,..etc.Fixed detectors (54C - 74C).R/R detectors (6C per min).Supply: 24 V dc.Contact: N/O.Area: 30sqm.Height: 6 m.

Devices multi detectorPlaces: special places.Optical smoke.R/R heat.Supply: 24 V dc.Contact: N/O.Area: 30sqm.Height: 6 m.

Devices flam detectorPlaces: flame production.Ultraviolet detector.Supply: 24 V dc .Contact: N/O.Detection angle: 80.Flame: 3 cm.Height: 6 m.

Devices beam detectorPlaces: stores, warehouses,..etc.Infrared transceiver.Supply: 24 V dc .Contact: N/O.Detection range: 50 100 m.Detection width: 6 m.Height: more than 6 m.

Devices gas detectorPlaces: gas stores, kitchens,..etc.LPG detector: wall mount.Natural gas detector: ceiling mount.Coal detector: ceiling mount.Supply: 24 V dc .Contact: N/O.

Devices duct detectorPlaces: heating and ventilation ducts.Optical smoke detector + housing.Sampling tube between housing and duct.Supply: 24 V dc .Contact: N/O.Air flow: 0.5 20 m/sec.Tube length: 0.5 3 m.

Devices manual call pointPlaces: exits and stairs.Manual push.No glass breaking.Resettable by a special key.Supply: 24 V dc .Contact: N/O.Installation height 135 cm.

Devices input modulesUsed with addressable system.Monitor the contact of any equipment.Connect any system to FACP.Zone monitor: connects the conventional detectors to an addressable loop.Supply: 24 V dc .Contact monitored: N/O, N/C.

Devices output modulesUsed with addressable system.Connect any system to FACP.Supervised output or relay output.Control module: runs the conventional sounders from an addressable loop.Supply: 24 V dc .Contact output: N/O, N/C.

Devices sounder & strobePlaces: corridors, stairs and outdoor.Visual indication devices.Sounder alarm devices.Both sounder and strobe.Sounder bases.Supply: 24 V dc .Consumption: 35 65 mA.Output: 100 dB @ 1 m.

Devices circuit isolatorPlaces: with alarm devices.A simple electrical device.Detector base or module.Electrical isolation with LED indication.Sometimes it is built in the devices.Number of devices: 10 30.Supply: passive device.

Devices repeater panelPlaces: long distance from FACP.LCD display same like FACP.Local sounder.Provides remote control of system.RS-485 connection with FACP.Connected with more than FACPSupply: 220 Vac + batteries.

Devices mimic panelPlaces: general, reception,..etc.A special kind of repeater panel.LED display on a drawing printed on a panel.Electronically programmable.Fault indicationRS-232 connection with FACP.Supply: 24 Vdc.

Devices graphical interfacePlaces: control rooms.Real time software.Blinking for active components.Supervise and control.Event log.RS-232 connection with FACP.

I Fire alarm systemsAddressable and conventional systems.Wired and wireless systems.Digital and Analog systems.

Addressable systemIntelligent control panels provided with LCD display, printer and event log.Programmable zones, C&E equations.Each device has a unique address via control panel, dip switch or hand-held programmer.Loop length and capacity are important parameters.Loop connection between devices:Class A: closed line, larger number of devices.Class B: open line.

Conventional systemFACP is provided with LEDs for fire and fault.Physical zones, open line ended by EOL.Ohm detection method:EOL= normal state.0= short cable fault.= cut cable fault. < ELO= alarm state.Special 24 Vdc outputs for sirens ended by EOL.25 35 devices per zone and 7 10 siren per output.Wireless systemUsed in special cases.Requires a special module that wirily connected with FACP and also connected with the wireless devices (detectors, call points and sirens).Wireless connection made by radio signal.Frequency rage: 868 870 MHzCommunication modulation: FSK.Wireless distance: 200 m in open area. Analog systemThe deference between analog and digital system is related to:Detecting methods.Networking (in addressable system).A/D and D/A convertors (in addressable system).

Analog system features:Reliability.Quality.Latest technologies (Fuzzy Logic, ProFiBus,..).Standardization.

II Voice alarm systemCompatible with addressable fire alarm system.Manual and automatic control of amplifiers.Able to store messages and events.High quality speakers.Microphones and recorders on input.Fire cable is recommended.

III Fire telephone systemA special system that allows an emergency call with an operator (maintenance cases).2-way voice communication.Central control unit that connected to handsets.Each handset occupy a zone on the panel.There are fixed handset and socket for mobile handset. In addition to speaker outstation.

IV Fire extinguishing systemPlace: data centers, money rooms, ..etc.2 conventional zones, each has 2 detectors.Cross wiring to achieve double knock control.Automatic and manual extinguishing control.Special devices: call point, indicator and relay.

V Extinguishing materialsWater sprinkles.Inert gases (Nitrogen, CO, CO2).FM200 (hyptafloroproban C3HF7):Non conductive and safe for humans.Non ozone depleting, not effected by temperature.Produces hydrogen florid absorb O2 from air.NOVEC 1230 (replacement of Halon 1301):Has chemical reactivity while FM200 doesnt.Interaction with body more than FM200.Boiling liquid (48C) increase the possibility of discharge ineffective in civil aviation applications.

V Extinguishing materialsFactors: environment, safety, space and budget.Atmospheric life time:NOVEC1230 = 5 days.FM200 = 37 years.CO2 = 0 days.Working pressure:NOVEC 1230 = FM200 = 25 bar.CO2 = 60 bar.A 200 m3 room requires:126 kg, 1 x 147 L of FM200.156 kg, 1 x 180 L of NOVEC 1230.260 kg, 6 x 50 L of CO2.THANK YOU