Alarm systemAlarm system used for announcements and instructions about the waiting area for rescue andescape for disabled people must be in both sound and image, have the flashing beaconto use in case of emergency. The alarm system must be deployed in areas such as meeting rooms, classrooms, corridors, halls, walkways and other public space used. When using speaker notifications must ensure sound intensity greater than the noise level Maxminimum + 5 dB. The intensity of the emergency alarm must sound intensity higher than the lipsthe minimum school + 15 dB but not in excess of 120 dB.
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