Once the dormant period ends, a visual indication (first stage flashing indication) must be activated indicating/demanding that the officer rest it, if available and active.This dormant period is the time in which the BNWAS is active without giving any alarm and it only once the dormant period is over that the alarm is sounded and the alarm/indication is sounded and the reset function needs to be activated Once the BNWAS is put into operation, the dormant period should be between 3 to 12 minutes.The BNWAS primarily has three modes of operation: If there is no response to the series of alarms, then BNWAS will alert other Deck officers, which may include Master of the ship, so that someone can come out on the bridge and handle the situation and tackle the problem. ![]() ![]() Credits: imo.orgĪ series of alert and alarm is first sounded by BNWAS in the Navigation Bridge to alert officer on watch. To avoid this BNWAS is installed on the bridge which acts similar to a dead man alarm in the engine room. If during an emergency situation, a navigational officer is not capable of handling that situation, it can lead to devastating scenarios. There have been many incidents in the past wherein ships have collided or grounded due to wrong decision or inefficiency in taking a decision at the correct time. ![]() Unless decided by the Master only, the BNWAS shall remain operational at all times. This is achieved through a mix of alarms and indications which alert backup OOWs as well as the Master.īNWAS warnings are given in the case of incapacity of the watchkeeping officer due to accident, sickness or in the event of a security breach, e.g. 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 OOWís duties. 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. Bridge Navigational Watch & Alarm System – BNWAS is a monitoring and Alarm system which notifies other navigational officers or master of the ship if the officer on watch (OOW) does not respond or he/she is incapable of performing the watch duties efficiently, which can lead to maritime accidents.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |