IMO regulations for BNWAS
Regulations from IMO’s Maritime Safety Committee (MSC) requires carriage of a BNWAS Bridge Navigational Watch Alarm System complying with IMO performance standards.
Deadlines for installation of BNWAS
1 July 2011: New Ships > 150 GT and all new passenger ships.
1 July 2011: New Ships > 150 GT and all new passenger ships.
1 July 2012: Existing passenger ships and ships over 3.000 GT
1 July 2013: Existing ships over 500 GT
1 July 2014: Existing ships over 150 GT
IMO performance standards for BNWAS
IMO performance standards for BNWAS
In February 2010 the new performance standard IEC62616 was adopted. IEC 62616 specifies the minimum performance requirements, technical characteristics and methods of testing, and required test results, for a bridge navigational watch alarm system (BNWAS) as required by Chapter V of the International Convention for the Safety of Life at Sea (SOLAS), as amended. It takes account of the general requirements given in IMO resolution A.694(17) and is associated with IEC 60945.
This means that from July 2011 all new ships over 150 GT has to be fitted with a type approved BNWAS complying with the new standard. Only a few systems have this new approval. Our new generation of BNWAS is called BW-800 and has DNV Type Approval and RRR Type Approval complying with IEC62616.
BNWAS minimum requirements
To find out how many alarm units you will have to install, please see IMO rec MCS 128-75 chapter: 4.1.2.4 - 4.1.2.6
"The BNWAS should additionally sound a first stage audible alarm on the bridge 15 s after the visual indication is initiated.
To find out how many alarm units you will have to install, please see IMO rec MCS 128-75 chapter: 4.1.2.4 - 4.1.2.6
"The BNWAS should additionally sound a first stage audible alarm on the bridge 15 s after the visual indication is initiated.
If not reset, the BNWAS should additionally sound a second stage remote audible alarm in the
back-up officer.s and/or Master.s location 15 s after the first stage audible alarm is initiated.
If not reset, the BNWAS should additionally sound a third stage remote audible alarm at the locations of further crew members capable of taking corrective actions 90 s after the second stage remote audible alarm is initiated."
To find out how many reset units you will have to install, please see IMO rec MCS 128-75 chapter: 5.1.4
"Means of activating the reset function should be easily accessible from the conning position, the workstation for navigating and manoeuvring, the workstation for monitoring and the bridge wings."
"Means of activating the reset function should be easily accessible from the conning position, the workstation for navigating and manoeuvring, the workstation for monitoring and the bridge wings."
IMO_res_MSC_128.75 (pdf-fil) >>