Section 3 Alarms and Internal Communication

301. General

1. Alarms and indicators are to be installed in accordance with the Code on Alerts and Indicators, 2009, adopted by the IMO Res. A.1021(26).

2. Internal means of communication are to be available for transfer of information between all spaces where action may be necessary in case of an emergency.

3. Audible signals in high noise areas are to be supplemented with visual signals.

302. General alarm

1. Each unit should be provided with a general alarm system so installed as to be clearly perceptible in all normally accessible parts of the unit, including open decks. Alarm signal devices are to be provided which will produce a distinctive and strong note.

2. The signals used should be limited to: general emergency, toxic gas (hydrogen sulphide), combus-

tible gas, fire alarm, and abandon unit signals. These signals are to be described in the muster and operations manual.

3. The signals given over the general alarm system should be supplemented by instructions over public address system.