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Weather precaution against abnormal conditions by gas carriers in cargo operations
In conditions of little or no wind, vapour resulting from an accidental release or from purging or gas-freeing operations may persist on deck. A strong wind may create low pressure on the leeside of a deckhouse or structure and thereby cause vapour to be carried towards it.
In any such conditions it should be assumed that local high concentrations of vapour may exist, and all cargo operations should cease.
Electrical Storms
Cargo operations or the venting of flammable cargo vapours should be stopped during electrical storms in the immediate vicinity of the ship.
Abnormal Weather or Other Conditions
(1) When rough weather, for example a typhoon with a wind velocity of 20 m/s or above, is expected while the vessel is alongside a wharf, the Master shall shelter the vessel in safe waters earlier enough after consultation with the terminal side (following the guidance given by the Maritime Safety Agency).
(2) If a tidal wave warning or a precautionary warning of a large-scale earthquake is issued, the Master shall suspend cargo operations immediately, and shall shelter the vessel in safe waters (following the guidance given by the Maritime Safety Agency).
(3) For standards for suspension of cargo operations and hose-off due to abnormal weather and sea conditions, lightning, and the like, the standards of the terminal shall be followed.
Related Information:
- The risk of laden voyage
- Safety checklist for gas carrier
- Precautions against sources of ignition
- Matters That Require Attention to Onboard Work
- Maintaining stability by ballasting/ de-ballasting tanks
- Statistic electricity precautions for liquefied gas carriers
Mooring requirements for gas carrier
Means of access to ship - gas carrier guideline
Standards for use of Mobile-phone in gas carrier
Dispersal of Vented Cargo Vapours
Openings in Deckhouses and Superstructures
Engine and Boiler Room Precautions
Cargo Machinery Room Precautions
Ship’s Readiness to Move
Lashing of Movable Articles
Details of various cargo handling equipment onboard
External links :
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Types of liquefied gas carriers downloadable product
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