General Emergency Alarm Regulations
According to SOLAS Chapter III & LSA Code
> Shall be capable of sounding seven or more short blasts followed by one long blast on the ship's whistle or siren and electrically operated bell
> Capable of operating from the navigation bridge and strategic points
> Audible all the accommodation and normal crew working spaces
> Sound pressure level in interior and exterior spaces shall be 80db and at least 10db above the ambient noise level
> In cabin it should be at least 75db and at least 10db above the ambient noise level
Public Address System Regulations
According to SOLAS Chapter III & LSA Code
> It shall be a loudspeaker installation enabling the broadcast of messages into
all spaces where crew members including muster stations
> Able to broadcast from bridge and necessary places
> It shall be protected against unauthorized use
> In interior spaces- 75db and min 20db above the speech interference level
> In exterior spaces- 80dband min. 15db above the speech interference level