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Safe lifting, stowage and carriage of containers on cargo ships
System of work for containerized cargo
All cargoes should be stowed and secured in a manner that will
avoid exposing the ship and persons on board to unnecessary risk. The safe
stowage and securing of cargo depends upon proper planning, execution
and supervision by properly qualified and experienced personnel.
Advance planning, exchange of information, and continuous ship to shore communication are all critical.
Containers are simply packages of pre-stowed cargo . The equipment used for lifting a container should be suitable for
the load, and safely attached to the container. The container should be free
to be lifted and should be lifted slowly to guard against the possibility of the
container swinging or some part of the lifting appliances failing, should the
contents be poorly secured, unevenly loaded and poorly distributed or
weight of contents incorrectly declared.
The process of loading and securing
of goods into a container should follow the IMO/ILO/UN/ECE Guidelines
for Packing of Cargo Transport Units (CTUs). Special care should be taken
when lifting a container the centre of gravity of which is mobile, e.g. a tank
container, bulk container or a container with contents which are hanging.
Safe means of access to the top of a container should be provided
to release lifting gear, and to fix lashings, and personnel so engaged should,
where appropriate, be protected from falling by use of a properly secured
safety harness or other suitable means. Where containers are stacked
account should be taken of the appropriate strength features and stacking
induced stress. Containers should be lashed individually.
On ships not specially constructed or adapted for their carriage,
containers should, wherever possible, be stowed fore and aft, and should be
securely lashed. Containers should not be stowed on decks or hatches
unless it is known that the decks or hatches are of adequate overall and
point load-bearing strength. Adequate dunnage should be used.
Fig: Unstuffing bagged rice from a container
The system of work should be such as to limit the needs to work
on container tops. Where the design for securing of containers and the
checking of lashing makes access onto the container tops necessary, it
should be achieved by means of the ship's superstructure or by a purpose-
designed access platform or personnel cages using a suitable adapted lifting
appliance. If this is not possible, an alternative safe system of work should be
in place.
To allow access to the tops of over-height, soft top or tank
containers where necessary for securing or cargo handling operations, solid
top or "closed containers" should be stowed between them whenever
practicable.
Where the ship's electrical supply is used for refrigerated
containers, the supply cables should be provided with proper connections
for the power circuits and for earthing the container. Before use the supply
cables and connections should be inspected and any defects repaired and
tested by a competent person.
Supply cables should only be handled when
the power is switched off. Where there is a need to monitor and repair
refrigeration units during the voyage, account should be taken of the need
to provide safe access in a seaway when stowing these containers.
Personnel should be aware that containers may have been
fumigated at other points in the transport chain, and there may be a residual
hazard from the substances used.
It is important to plan in advance, both at the shore terminal and
offshore to aid effective cargo securing. The objective of pre-planning is the
safe and practical restraint of cargo carried on the deck of offshore support
vessels so that personnel, ship and cargo may be reasonably protected at all
stages of carriage, and during cargo operations offshore.
The master and the Offshore Liaison Manager or their
representatives must establish liaison prior to unloading or backloading of
cargo.
The order of loading/discharging and stowage arrangements
should be pre-planned in order to avoid wherever possible the "slotting-in"
of containers and the necessity for any person to climb on top of the cargo.
The master should ensure he is provided with details of any
unusual items of cargo, including dangerous goods, cargoes requiring special
sea-fastening arrangements, or heavy lifts before loading.
Summarized below some more details on general cargo ship cargo handling procedure and operational info:
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Cargo handling procedure for general cargo ship
Suitable safety nets or temporary fencing should be rigged where personnel have to walk or climb across built-up cargo, and are therefore at
risk of falling .
More .....
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Various cargo handling techniques
(a) Technological advances in ship design and lifting equipment
(b) Rapid development and increase in the tonnages of bulk cargo
(c) The impact of unitisation, and
(d) The new and modern techniques of refrigeration, particularly with container
carriage.
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Cargo information rules
The MS (Carriage of Cargoes) Regulations 1999 (SI 1999/336) [Regulation 4(1)] specifies that the shipper must provide such information to the operator or master sufficiently
in advance of loading to enable them to ensure that:
• the different commodities to be carried are compatible with each other or suitably separated;.
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Cargo packaging - general cargo ships procedure
To achieve compatibility between cargo
owners and the owners of the means of
transport requires knowledge of the
cargo-handling procedures in transport.
These procedures are described with
reference to major characteristics of
commodities and cargoes. .
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Cargo stowage plan
The copies are forwarded to agents at ports of
discharge to allow the booking and reservation of labour, as appropriate. Relevant details of cargoes, i.e. total quantity, description of package, bales, pallets etc., tonnage, port of discharge,
identification marks and special features if and when separated .
More .....
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Shipment procedure for cargoes in different forms
General cargo is a term that covers a great variety of goods. In regard to modern
cargo handling it refers to loose cargo that has not been consolidated for handling
with mechanical means such as unitised or containerised cargo. It refers to individual
items of any type of cargo, bagged or baled items, cases or crates, individual drums or
barrels pieces of machinery or small items of steel construction. .
More .....
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Information exchange on cargo stowage and planning
Advance planning, exchange of information, and continuous ship to shore communication are all critical. All cargoes should be stowed and secured in a manner that will avoid exposing the ship and persons on board to unnecessary risk.
More .....
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Lifting and carriage of deck cargo
The safe securing of all deck cargoes should be checked by a
competent person before the vessel proceeds on passage. The master is
responsible for ensuring that it is correctly stowed and adequately secured
for the intended voyage. Areas on the deck which are not to be used for
cargo stowage should be clearly marked or otherwise indicated. .
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Safe use of pesticides on board cargo ships
Ship's personnel should not handle fumigants and such operations
should be carried out only by qualified operators. Fumigation should only be
carried out with the agreement of the ship's master..
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Types of packaging & stowage methods for break bulk cargo
The rigging time being negligible, and the crane is able to pick up and land permitted loads anywhere within its working radius. .
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Various commodities carried by general cargo ships
Cargoes should be stowed and secured in a manner that will
avoid exposing the ship and persons on board to unnecessary risk. The safe
stowage and securing of cargo depends upon proper planning, execution
and supervision by properly qualified and experienced personnel. .
More .....
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Methods of ventilation
The holds of most dry cargo ships are ventilated by a mechanical supply and natural exhaust system
.
More .....
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Carriage of containers on cargo ships
The process of loading and securing
of goods into a container should follow the IMO/ILO/UN/ECE Guidelines
for Packing of Cargo Transport Units (CTUs). Special care should be taken
when lifting a container the centre of gravity of which is mobile, e.g. a tank
container, bulk container or a container with contents which are hanging..
More .....
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Working in cargo spaces safely
Safety arrangements prior to working cargo should ensure that
adequate and suitable lifting plant is available, in accordance with the register
of lifting appliances and cargo gear, .
More .....
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Cargo handling procedure for general cargo ship
Suitable safety nets or temporary fencing should be rigged where personnel have to walk or climb across built-up cargo, and are therefore at
risk of falling .
More .....
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