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Voice evacuation alarms typically are not as loud as horns or bells (although generally standards require the same minimum sound pressure levels), and usually sound an alarm tone (typically a slow whoop, code-3, or chime tone, although this depends on the country and particular application) and a voice message warning that an emergency has been ...
A fire alarm system is a building ... sirens, chimes, bells ... The NFPA recommends placing a list for reference near the fire alarm control panel showing the devices ...
safety alarms, which go off if a dangerous condition occurs. Common public safety alarms include: civil defense siren, also known as tornado sirens or air raid sirens; fire alarm systems. fire alarm notification appliance "Multiple-alarm fire", a locally specific measure of the severity of a fire and the fire-department reaction required. smoke ...
A discarded cigarette or upturned tea light sparked a blaze at their rubbish-strewn terraced home in Sutton, south London. ‘Alarm bells’ raised by authorities before boys killed in house fire ...
The sharpest criticism contained accusations that the party had lied to its supporters about President Joe Biden's mental fitness until a disastrous TV debate with Trump in June raised alarm bells ...
Here are all the best new songs we heard in December 2024.
Electromechanical bells have been widely used at railroad crossings, in telephones, fire and burglar alarms, as school bells, doorbells, and alarms in industrial areas, since the late 1800s, but they are now being widely replaced with electronic sounders.
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