CEI EN 62616

This International Standard 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. When a requirement in this
International Standard is different from IEC 60945, the requirement
in this standard takes precedence.

This standard incorporates the parts of the performance
standards included in IMO resolution MSC.128(75).

NOTE 1 All text of this standard, whose wording is identical to
that of IMO resolution MSC.128(75), is printed in italics, and the
resolution and associated performance standard paragraph numbers
are indicated in brackets.

(128/A1) The purpose of a bridge navigational watch alarm
system (BNWAS) is to monitor bridge activity and detect operator
disability which could lead to marine accidents. The system
monitors the awareness of the Officer of the Watch (OOW) and
automatically alerts the Master or another qualified OOW if for any
reason the OOW becomes incapable of performing the OOW's duties.
This purpose is achieved by a series of indications and alarms to
alert first the OOW and, if he is not responding, then to alert the
Master or another qualified OOW. Additionally, the BNWAS may
provide the OOW with a means of calling for immediate assistance,
if required. The BNWAS should be operational whenever the ship
is underway at sea (SOLAS V/19.2.2.3).

NOTE 2 BNWAS may not, in practice, be realised as a stand alone
equipment. It may be integrated in other equipment such as radar,
ECDIS, etc.