4 Operation of watertight doors
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1380 – Guidance for Watertight Doors on Passenger Ships Which May be Opened During Navigation – (10 December 2010) - Annex – Guidance for Watertight Doors on Passenger Ships Which may be Opened During Navigation - 4 Operation of watertight doors

4 Operation of watertight doors

 Power-operated watertight doors are designed to be remotely closed in a short period of time with a force the magnitude of which is sufficient to overcome not only the weight of the door but also water flowing through its opening, both while a ship is listing 15º in either direction. The operation of watertight doors involves possible dangers to persons passing through a closing door and injury or loss of life is likely to occur to anyone trapped in the door's path. The audible alarm that sounds for a few seconds before the door starts moving, and continues sounding while the door is in motion, is intended to reduce the human element risk.

Parent topic: Annex – Guidance for Watertight Doors on Passenger Ships Which may be Opened During Navigation
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