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42 Cards in this Set
- Front
- Back
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What are the components of a typical alarm system? |
Fire Alarm Control Panel, Power supplies, initiating devices, and Notification appliances (1178) |
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What is the Fire Alarm Control Panel? |
The brain, contains electronics to monitor the fire alarm system. It receives processes, and produces signals. (1178) |
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How many Power Supplies are there? |
Two, a primary and secondary source (1178) |
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Where is the primary supply obtained from? |
Buildings main connection to the local utility provider (1178) |
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Why is there a secondary power supply? |
Ensures that the power supply will still operate even if the primary system fails (1178) |
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What are initiating devices? |
Can be manually or automatically operated. Send a signal to FACP after sensing products of combustion or other hazardous materials. (1180) |
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What are notification appliances? |
After the initiating signal is sent to the FACP, it activates local and remote notification appliances. May include bells, horns, lights, buzzers etc. (1180) |
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What is the most common type of notification appliance? |
Audible (1180) |
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What types of notification signalling appliances are there? |
Audible, Visual (lights), Textual (Text) Tactile (Vibration) (1180) |
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What is a fire Command Centre? |
An FCS is a room that consolidates all fire protection controls in one room. (1181) |
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What are the types of Alarm signalling systems? |
Protected premises and Supervising alarm stations (1182) |
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What is a protected Premises? |
A.K.A local system, provides notification only to people in immediate area. There are three types (1182) |
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What are the types of Protected Premises? |
Noncoded, Zoned, Addressable alarm. (1183) |
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What is a non coded protected premises? |
Simplest type of alarm, sets of all signalling devices simultaneously. can not identify which device was initially triggered. (1182) |
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What is zoned protected premises alarm? |
Enables responders to identify the general area of alarm activation. (1183) |
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What is addressable protected premises alarm systems? |
Displays location of each initiating device, can pinpoint specific device that was first activated. (1183) |
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What is a supervising station? |
Continuously monitors a remote location. (1183) |
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Types of Supervising stations? |
Auxiliary, Propriety, Central station, remote receiving stations (1184) |
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What is an auxiliary supervising station? |
Connected to municipal alarm system. (1184) |
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What is a propriety supervising station? |
Protects large commercial and high rise buildings, each building has its own system wired to a common receiving station (1184) |
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What is central station supervising station? |
Monitored by contracted services at a receiving point. (1184) |
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What is a remote receiving system? |
Connected by other means than a box system, usually a telephone line (1184) |
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What is a pull station? |
Manually pulled devices that initiate the fire signalling system. (1185) |
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What is a heat detector? |
Activate when the heat in a monitored area reaches a certain temperature threshold. |
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What principles do heat detectors operate on? |
Fixed temperature and rate of rise (1185) |
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Where are heat detectors installed? |
The highest point in a room (1186) |
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What type of alarm is least prone to false activation? |
Fixed heat detector (1186) |
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What type of alarm can be the slowest to activate? |
Fixed heat detector (1186) |
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When do rate of rise heat detectors activate? |
When the rise in temperature hits 12 to 15 degrees in one minute (1188) |
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What is the difference between a smoke detector and a smoke alarm? |
Smoke alarms are self contained, detect smoke and signal an alarm. Smoke detectors only detect smoke, they need another device to signal an alarm. (1190) |
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What responds faster, heat detector or smoke detector? |
Smoke detector (1190) |
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What is a photoelectric smoke detector? |
Works well on all fires, responds faster than a ionisation smoke detector. Automatically reset when conditions return to normal (1190) |
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What is an ionisation smoke detector? |
Detects particles and products of combustion to small for the eye to see. Automatically reset when conditions return to normal (1192) |
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What are the three basic types of flame detectors? |
Ultraviolet, Infared, Combination (1193) |
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What detector can be used to identify specific gases rather than just carbon monoxide? |
Fire-Gas Detector (1194) |
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What is an automatic sprinkler system? |
Designed to activate and discharge water to extinguish or stop spread of fire. (1194) |
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What NFPA Standard regulates Sprinklers? |
NFPA 13 |
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What effect do sprinkler systems have on life safety? |
Safety of building occupants is greatly increased by presence of a sprinkler system, products of combustion are limited (1195) |
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What is the required volume of water to the highest sprinkler? |
15 Psi (1202) |
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To ensure that water volume and pressure are maintained, what is typically incorporated into the sprinkler system? |
A fire pump (1202) |
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What does a check valve do? |
Prevents water from flowing back into the FDC (1203) |
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What is a deluge sprinkler system? |
All sprinkler heads open at once (1205) |
