What does BNWAS mean?
The purpose of BNWAS (Bridge Navigational Watch Alarm System) is to monitor bridge activity and detect operator disability which could lead to marine accidents. BNWAS monitors the watch officer’s presence through watch safety system functions.
What are the three modes of operation of BNWAS?
The system can be in one of three modes: ‘Manual OFF ‘- The system is turned off; ‘Manual ON’ – The system is on and functioning with a period of time ‘Inactivity time’; ‘Automatic’ – Automatic mode, the system automatically turns on when you turn on the autopilot and operates with a period of time ‘Inactivity time’.
How does the BNWAS function?
A Bridge Navigational Watch Alarm System, abbreviated BNWAS, is an automatic system which sounds an alarm if the watch officer on the bridge of a ship falls asleep, becomes otherwise incapacitated, or is absent for too long a time. The BNWAS is automatically engaged when the ship’s autopilot is activated.
When should BNWAS be operated?
The BNWAS should be operational whenever the ship’s heading or track control system is engaged, unless inhibited by the Master. 4.1. 2.1 Once operational, the alarm system should remain dormant for a period of between 3 and 12 min (Td).
What are the regulations for BNWAS in Solas Chapter V Regulation 19 states?
Regulations for BNWAS SOLAS Chapter V Regulation 19 states: Cargo ships of 150 gross tonnage and upwards and passenger ships irrespective of size constructed on or after 1 July 2011. Passenger ships irrespective of size constructed before 1 July 2011, not later than the first survey after 1 July 2012.
What Convention governs BNWAS?
SOLAS Chapter V Regulation 19 states: Cargo ships of 150 gross tonnage and upwards and passenger ships irrespective of size constructed on or after 1 July 2011.
When you will switch of your BNWAS?
Manual ON: The BNWAS is always in operation. Authorized person (Master) switches on system by single turning the key-switch to position “ON/OFF”. Once dormant period (3 min, 9 min, 12 min) is set, the authorized person pulls out the key. Dormant period starts from the moment the system has been switched on.
When was the SOLAS Chapter V regulation amendments in relation to BNWAS adopted by the IMO?
A new SOLAS Amendment clarifies installation of BNWAS for ships built before 1 July 2002. The Maritime Safety Committee at its 92nd session adopted Resolution MSC. 350(92) with amendments toSOLAS coming into force on 1 January 2015.
Who may exempt a ship from full compliance of the BNWAS?
Administrations
Administrations may exempt ships from the requirement when such ships will be taken permanently out ofservice within two years after the implementation date.