Page 21 - Layout 1
P. 21
5 Cargo
5.2.4 Self-heatingcondition of the transverse joints, but the horizontal seals
In some cases self-heating can lead to a ire, but this is on the coaming are far more dificult to address. It is quite
relatively uncommon. Vigilance and good working practices obvious that the pressure of the sea on the covers cannot be
when loading are the key to ire prevention of this kind of simulated using a ire hose.
cargo; this should extend to any hot work carried out near It is more effective to use an ultrasonic device, which
part illed or full cargo holds. Self-heating in cargo such as is designed for this purpose. The advantages of using this
coal, can potentially lead to a ire. By far the most effective type of equipment are evident, since sealing tests can be
means of preventing such ires is to rigorously adhere to carried out in a loaded condition without risking cargo
the requirements of the International Maritime Solid Bulk damage and also allow for the possibility of an assessment
Cargoes Code (IMSBC) during and after loading.in sub-zero temperatures.
To address this issue it is important there are SMS
(Safety Management System) procedures detailing the
5.2.5 Hatch coverschecks required to ensure the hatch covers are in a proper
A great deal of cargo damage on bulk carriers is caused by condition. It is even more important that these checks
leaking hatch covers, particularly when vessels encounter are included in the PMS (Planned Maintenance System),
heavy weather. To prevent this, weather conditions mustin combination with extensive maintenance tasks. It is
be monitored very carefully so that severe weather can be imperative that there are speciic action points regarding
avoided. Leaking hatch covers are unfortunately causing lots the seals, coamings and pads. A risk assessment needs to be
of wet damage claims.in place regarding the different issues concerning leaking
One of the most common tests prior to loading to hatch covers.
ensure that cargo hatches are not leaking, is the water hose
test. The crew put ire hoses under pressure and spray the
hatches. Unfortunately, it seems that the hose test is of
little value for ensuring proper sealing on a vessel at sea. It
is possible that the Master can obtain an indication of the
19www.swedishclub.com