EVS-EN 54-3:2001/A2:2006

This standard specifies the requirements, test methods and performance criteria for fire alarm sounders in a fixed installation intended to signal an audible warning of fire between a fire detection and fire alarm system and the occupants of a building. It is intended to cover only those devices which derive their operating power by means of a physical electrical connection to an exteral source such as a fire alarm system. This standard specifies audible fire alarm devices for two types of application environment, type A for indoor use and type B for outdoor use.