Smoke detectors that sound when smoke is not present may suffer from an electrical problem. The smoke sensor may be at fault as well. Some sound if the battery is low and needs replacement.Know More
Smoke detectors are essential safety devices, and they have saved many lives through the years. When they sound when smoke is not present, however, they can become a nuisance. While smoke detectors have robust electrical wiring, their wiring may short-circuit or otherwise break. On occasion, faulty wiring can cause the detector to sound in the absence of smoke.
Smoke detectors are sensitive, and they require only a small amount of smoke to trigger. Because of their sensitivity, smoke detector sensors might react to the movement of air, dust or other factors. Because smoke detectors contain highly radioactive elements, those with fault sensors may need to be replaced.
Smoke detectors may beep if their batteries are running low, but many people interpret this as the smoke detector malfunctioning. If the beeping is only occasional, replacing the battery is likely to fix the problem. However, owners may wish to check the smoke detector's manual first; occasional beeping can also be caused by a malfunction, and it may not work properly if there is a fire.Learn more about Government & Politics
A modern four-alarm fire refers to the number of units dispatched to the scene of a fire. Most major cities define a unit as a vehicle such as a fire truck, fuel truck, ladder truck, the department SUV or a civilian vehicle. The exact number of dispatched units and firefighters on the scene varies from department to department and rises as the number of alarms increases.Full Answer >
The alarm system for fires is not precise or uniform, though more alarms correspond to a more severe fire. An increase in the number of alarms corresponds to an increase in the requested number of units and fire fighters. Each fire department determines how its alarm system is implemented.Full Answer >
Although there are no national programs that distribute smoke detectors or other types of fire alarms, state and city governments sometimes offer free smoke detectors and batteries. Most areas offer free educational material about fire safety, including smoke detector information.Full Answer >
Homeowners should change the batteries in their smoke alarms at least twice a year. They should also test the batteries at least once a month, making sure to alert other family members so that the family is not frightened by the alarm.Full Answer >