fire alarm?

Question

i need it for my skul project so plz............................

Answer 1

-A fire alarm system is an active fire protection system that detects fire or the effects of fire, and as a result provides one or more of the following: notifies the occupants, notifies persons in the surrounding area, summons the fire service, and controls all the fire alarm components in a building. Fire alarm systems can include alarm initiating devices, alarm notification appliances, control units, fire safety control devices, annunciators, power supplies, and wiring.

-Fire alarm systems have devices connected to them to detect the fire/smoke or to alert the occupants of an emergency. Below is a list of common devices found on a fire alarm.

Manual pull stations/manual call points - Devices to allow people to manually activate the fire alarm. Usually located near exits. Also called "manual pull boxes". Other countries have different devices as standard, for example the UK uses 'break-glasses', when people break a small pane of glass to activate the alarm.
Smoke detectors - Spot type: Photoelectric and Ionization; Line type: Projected Beam Smoke Detector; Air-Sampling type: Cloud Chamber
Water Flow Switches - Detect when water is flowing through the fire sprinkler system
Rate-of-Rise and Thermostat (heat) Detectors - Detect heat changes
Valve Supervisory Switch - Indicates that a fire sprinkler system valve that is required to be open, is now closed (off-normal).
Carbon Monoxide Detectors - Detects poisonous carbon monoxide gas and usually only connected to household fire alarm systems. Very rarely seen in commercial systems.

Answer 2

in the hearth alarm business enterprise, a hearth alarm gadget or gadget would properly be a handbook hearth alarm field, warmth detector, waterflow gadget, flame detector or smoke detector. The term "smoke alarm" refers to a smoke detector that's no longer linked to a hearth alarm administration unit, yet operates independently, or with different smoke alarms. digital c is wrong, advertisement smoke detectors perform by using the photoelectric thought or the ionization thought. some photoelectric-form smoke detectors inspect the mirrored image (unquestionably refraction) brought about while a mild beam bounces off smoke debris. Others have a mild source pointed at a photosensitive receiver. The help of sunshine won, brought about by using smoke debris, creates an alarm. Ionization-form smoke detectors make the main of a source of radioactivity, like Americium to make a conductive direction by way of area of the detector. Smoke debris intervene with the conductive direction, inflicting an alarm. All are somewhat greater complicated, yet this explains the fundamentals.

Answer 3

If you need help, try contacting your local fire department in person and asking about fire safety tips and the types of fire alarm types, including stroubs.

Answer 4

In general, I am in favor of fire alarms.

Answer 5

NFPA writes standards for all kinds of fire protection.

Answer 6

http://www.haglind.no/ check it for more details about fire alarm

Answer 7

okay