This European Standard specifies requirements, methods of test and performance criteria for voice alarm
control and indicating equipment for use in fire detection and fire alarm systems installed in buildings, where
the alarm ,signal is in the form of tone(s) or voice message(s), or both.
It also prowdes for the evaluation of conformity of the equipment to the requirements of this European
Standard
NOTE The overall requirements of a voice alarm system, especially concerning audibility and intelligibility, are not
covered in this part of EN 54. The manufacturer should consider requirements of an overall system that may affect the
equipment design. Such system requirements may be specified in another part of EN 54, in national legislation, codes and
standards or in contractual documents.