Bridge Navigational Watch Alarm System (BNWAS)



Lilley & Gilley BNWAS P7007

Highlander HLD-100



Compliances of Existing Dead Man Alarm with SOLAS BNWAS Requirements

There are a lot of companies who already have a simple dead man alarm or similar types of system installed on their vessels and are unsure whether or not this is enough for compliance with SOLAS Regulation V/19 BNWAS requirements.

The existing system still needs to meet certain requirements and below are some guidelines to verify whether the existing system is compliant. These are only for guidance. For more information, please check with your relevant class society or flag authority.

· System should have 3 operation modes - Automatic - system comes into operation when ships heading or track control system is activated; Manual ON and Manual OFF.

· Alarm system to have a configurable dormant period of 3-12 minutes.

· The reset function or alarm cancellation can only be located on the bridge.

· First level Alarm - Initially a visual indication on the bridge followed 15 seconds later by an audible alarm if system not reset.

· Second stage Alarm - remote audible alarm in Masters (compulsory) and other Officers quarters(as required).

· Third level Alarm - remote audible alarm at locations designated general crew areas.

· All alarms should be easily identifiable by its sound and should indicate urgency. Volume should be significant enough to wake people up and be tone selectable.

· The reset function should, by single operator action, cancel all visual and audible alarms and initiate a further dormant period.

· Resets should be tamper alarmed and designed to prevent continual activation.

· System should have an emergency call function which will activate Level two and escalate to Level 3 alarms in remote locations.

· System should be security protected so that access to the system configuration is only available to the Master.

· System should be powered by ships main power but MUST have a battery backup giving a minimum of 6 hours usage.

· Inputs should be available for additional reset devices for connection to bridge equipment capable of generating reset signals as verified by the appropriate approved bodies.

· Output(s) should be available for connection to bridge visual and audible alarms and equipment.

If the current deadman alarm system does not fully comply with the requirements of SOLAS Chapter V Regulation 19 then we would be pleased to discuss your requirements to see how we can help.