A fire alarm system warns people when smoke, fire, carbon monoxide or other fire-related emergencies are detected. These alarms may be activated automatically from smoke detectors and heat detectors or may also be activated via manual fire alarm activation devices such as manual call points or pull stations. Alarms can be either motorized bells or wall mountable sounders or horns. They can also be speaker strobes which sound an alarm, followed by a voice evacuation message which warns people inside the building not to use the elevators. Fire alarm sounders can be set to certain frequencies and different tones including low, medium, and high, depending on the country and manufacturer of the device. Most fire alarm systems in Europe sound like a siren with alternating frequencies. Fire alarm electronic devices are known as horns in the United States and Canada and can be either continuous or set to different codes. Fire alarm warning devices can also be set to different volume levels.
Corby is a town and borough in the county of Northamptonshire, England.
It is located 23 miles (37 km) north-east of the county town, Northampton. At the 2011 Census the town had a population of 54,927 and the borough had a population of 61,255. Figures released in March 2010 revealed that Corby has the fastest growing population in both Northamptonshire and the whole of England. The borough of Corby borders onto the borough of Kettering, the district of East Northamptonshire, the district of Harborough and the unitary authority county of Rutland. The town was at one time known locally as "Little Scotland" due to the large number of Scottish workers who came to Corby for its steelworks. Recently, Corby has undergone a large regeneration process with the opening of Corby railway station and Corby International Pool in 2009 and the Corby Cube building opening in 2010. This is home to Corby Borough Council offices and also houses a 450-seat theatre, a public library and other community amenities.