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Suitability of ships and terminals for handling solid bulk cargo
All ships nominated for loading should hold the appropriate valid statutory certification including,
if required, the document of compliance for ships carrying solid dangerous goods in bulk. It is
recommended that the period of validity of the ship’s certificates be sufficient to remain valid during
loading, voyage and unloading times, plus a reserve to allow for delays in berthing, inclement
weather or both.
The shipowner, manager or operator, when offering a ship for a particular cargo or service, should
ensure that the ship:
is maintained in a sound, seaworthy condition;
has on board a competent crew;
has on board at least one officer proficient in the languages used at both the loading and unloading
ports, or has an officer available who is proficient in the English language; and
is free of defects that may prejudice the ship’s safe navigation, loading or unloading.
It is essential that a ship selected to transport a solid bulk cargo be suitable for its intended purpose
taking into account the terminals at which it will load or unload.
The charterer and shipper when accepting a ship for a particular cargo or service should ensure that
the ship:
is suitable for access to the planned loading or unloading facilities; and
does not have cargo handling equipment which would inhibit the safety of the loading and unloading
operations.
Ships requirements
Ships nominated for bulk loading should be suitable for the intended cargo. Suitable ships should be:
weathertight, and efficient in all respects for the normal perils of the sea and the intended voyage;
provided with an approved stability and loading booklet written in a language understood by the
ship’s officers concerned and using standard expressions and abbreviations. If the language is
neither English, nor French, nor Spanish, a translation into one of these languages should be
included;
provided with hatch openings of sufficient size to enable the cargo to be loaded, stowed and
unloaded satisfactorily; and
provided with the hatch identification numbers used in the loading manual and loading or
unloading plan. The location, size and colour of these numbers should be chosen so that they are
clearly visible to the operator of the loading or unloading equipment.
It is recommended that all ships which are required to carry out stress calculations should have on
board an approved loading instrument for the rapid calculation of such stresses.
All propulsion and auxiliary machinery should be in good functional order. Deck equipment related
to mooring and berthing operations, including anchors, cables, mooring lines, hawsers and winches,
should be operable and in good order and condition.
Applicable to ships constructed on or after 1 September 1984 :
All hatches, hatch operating systems and safety devices should be in good functional order, and used
only for their intended purpose.
List indication lights, if fitted, should be tested prior to loading or unloading and proved operational.
Ship’s own cargo handling equipment should be properly certificated and maintained, and used only
under the general supervision of suitably qualified ship’s personnel.
Terminals requirements
Terminal operators should ensure that they only accept ships that can safely berth alongside their
installation, taking into consideration issues such as:
water depth at the berth;
maximum size of the ship;
mooring arrangements;
fendering;
safe access; and
obstructions to loading/unloading operations.
Terminal equipment should be properly certificated and maintained in accordance with the relevant
national regulations and/or standards, and only operated by duly quali?ed and, if appropriate,
certificated personnel.
Where automatic weighing equipment is provided, this should be calibrated at regular
intervals.
Terminal personnel should be trained in all aspects of safe loading and unloading of bulk carriers,
commensurate with their responsibilities.
The training should be designed to provide familiarity with the general hazards of loading,
unloading and carriage of bulk cargoes and the adverse effect improper cargo handling
operations may have on the safety of the ship.
Terminal operators should ensure that personnel involved in the loading and unloading operations are
duly rested to avoid fatigue.
Other useful articles :
- Rope handling safe procedure
Ropes are made of short fibres that are spun into yarns,
which are then made into flat or twisted strands.
And the strands are spun or braided to make the finished
rope .
More .....
-
Synthetic man-made ropes and hawsers
Although natural fibre ropes are still widely used throughout the marine industry, they have been superseded by synthetic fibres for a great many
purposes. Not only do the majority of synthetic ropes have greater strength
than their natural fibre counterparts, but they are more easily obtainable
and at present considerably cheaper.
More .....
-
Natural fibre rope
All natural fibre rope is manufactured from manilla, sisal, hemp, coir, cotton
or flax fibres.The process of manufacture consists of twisting the fibres
into yarns and turning the yarns in an opposite direction to establish the
strands.
More .....
- Prepare cargo holds prior loading
Washing is always carried out after the compartment has been swept. Drying time for washed compartments must be allowed for, before loading the next cargo; this time will vary with the climate, but two to three days must be expected.
More .....
- Strength and stability of the Lifting appliances
The vessel's structure, crane, derrick or other lifting device and the supporting structure should be of sufficient strength to withstand the loads
that will be imposed when operating at its maximum load moment .
More .....
- Anchoring safe practice
Prior approaching an area for anchoring ships master should investigate fully a suitable anchoring position and conduct a planned approach including speed reduction in ample time and orienting the ships head prior anchoring to same as similar sized vessels around or stem the tide or wind whichever is stronger . Final decision to be made on method of anchoring to be used , the number of shackles , the depth of water, expected weather and holding ground. .
More .....
- MacGregor single-pull weather-deck hatch cover
Hatch covers are used to close off the hatch opening and make it
watertight. Wooden hatch covers, consisting of beams and boards over
the opening and covered with tarpaulins, were once used but are no
longer fitted. Steel hatch covers, comprising a number of linked steel
covers, are now fitted universally. Various designs exist for particular
applications, but most offer simple and quick opening and closing,
which speed up the cargo handling operation..
More .....
- Cargo holds access arrangement
The access shall be separate from the hatchway opening, and shall be by a stairway if possible. A fixed ladder, or a line of fixed rungs, shall have no point where they fill a reverse slope
.
More .....
-
Lay of Ropes and hawsers - Small Stuff descriptions
The lay of rope is a term used to describe the nature of the twist that produces the complete rope .The most common form of rope at sea is known as ‘hawser laid rope’ comprising three strands laid up right- or lefthanded.
More .....
- Stresses in ship structures and how to mitigate
Heavy weights tend to cause a downward deflection of the deck area supporting the load .This subsequently produces stresses, with
consequent inward and outward deflections of supporting bulkheads,
depending on the position of initial loading .
More .....
- Lifting appliances - Maintenance, testing, controls & safety measures
When there is any suspicion that any appliance or item of
equipment may have been subjected to excessive loads, exceeding the Safe
Working Load (SWL), or subjected to treatment likely to cause damage, it
should be taken out of service until it can be subjected to a thorough
examination by a competent person.
More .....
- Safe operation of Lifting appliances and gears
All lifting operations must be properly planned, appropriately
supervised and carried out to protect the safety of workers.
More .....
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