SOLAS CHAPTER 12 FOR ADDITIONAL SAFETY OF BULK CARRIER
We have already discussed the reasons for losses of bulk carriers in mid nineties. You can search that it my earlier posts. Today we will discuss the measures taken in SOLAS chapter 12 which has laid down additional safety measures for bulk carriers.
1. Regulation 4:- Damage stability requirements applicable to bulk carriers
a) Bulk carrier of 150 m length and upwards of single skin construction, designed to carry solid bulk cargoes of density 1000 kg/m3 and above, constructed on or after 1 july 1999, should be able to withstand flooding of any one cargo hold in all loading conditions when loaded to summer load line.
b) Bulk carrier of 150 length and upward of double skin construction in which any part of longitudinal bulkhead is located B/5 or 11.5 m, whichever is less, inboard from ship's side designed to carry solid bulk cargoes of density 1000 g/m3 and above, constructed on or after 1 july 2006, should be able to withstand flooding of any cargo hold in all loading condition.
c) Bulk carriers of 150 m length and upwards of single skin construction carrying solid bulk cargoes of density 1780 kg/m3 and above, constructed before 1 july 1999, when loaded to summer loadline should be able to withstand flooding of foremost cargo hold in all loading condition.
2. Regulation 5 and 6 deals with the structural requirements necessary for bulk carriers built on and after 1 july 1999 and 1 july 2006 to withstand the requirements mentioned in regulation 4.
3. Regulation 7: Survey and maintenance of bulk carrier
Bulk carriers of 150 m length and upwards of single skin construction constructed before 1 july 1999, of 10 years of age and over, shall not carry solid bulk cargoes having a density of 1780 kg/m3 and above unless they have undergone a survey as per ESP.
4. Regulation 8:-- Information on compliance with requirement of bulk carrier
Any restrictions imposed on the carriage of solid bulk having density of 1780 kg/m3 and above shall be identified and recorded in the loading booklet as prescribed under chapter VI. The booklet should be endorsed by the administration. Such bulk carriers should be permanently marked on both sides below the deck line in prescribed format,
5. Regulation 10:- The shipper has to declare the density of cargo along with other information required by chapter VI.
6. Regulation 12:- Hold, ballast and dry space water ingress alarm
a) Bulk carriers shall be fitted with water level detectors in each cargo hold, giving an audio and visual alarm, one when the water level above inner bottom in any cargo hold reaches a height of 0.5 m and another at a height of not more than 2 m.
b) Water level detectors should be fitted in ballast tank forward of collision bulkhead when the liquid in tank reaches a level not exceeding 10% of tank capacity.
c) It should be fitted in any dry or void space other than chain locker, if that space extends forward of the foremost cargo hold, giving an audio-visual alarm at a water level of 0.1 m above the deck.
7. Regulation 13 :- Availability of pumping system
There should be means of pumping out water from space forward of collision bulkhead and from dry space which extend forward of foremost cargo hold. This means of pumping should be readily accessible from bridge or propulsion machinery space.
1. Regulation 4:- Damage stability requirements applicable to bulk carriers
a) Bulk carrier of 150 m length and upwards of single skin construction, designed to carry solid bulk cargoes of density 1000 kg/m3 and above, constructed on or after 1 july 1999, should be able to withstand flooding of any one cargo hold in all loading conditions when loaded to summer load line.
b) Bulk carrier of 150 length and upward of double skin construction in which any part of longitudinal bulkhead is located B/5 or 11.5 m, whichever is less, inboard from ship's side designed to carry solid bulk cargoes of density 1000 g/m3 and above, constructed on or after 1 july 2006, should be able to withstand flooding of any cargo hold in all loading condition.
c) Bulk carriers of 150 m length and upwards of single skin construction carrying solid bulk cargoes of density 1780 kg/m3 and above, constructed before 1 july 1999, when loaded to summer loadline should be able to withstand flooding of foremost cargo hold in all loading condition.
2. Regulation 5 and 6 deals with the structural requirements necessary for bulk carriers built on and after 1 july 1999 and 1 july 2006 to withstand the requirements mentioned in regulation 4.
3. Regulation 7: Survey and maintenance of bulk carrier
Bulk carriers of 150 m length and upwards of single skin construction constructed before 1 july 1999, of 10 years of age and over, shall not carry solid bulk cargoes having a density of 1780 kg/m3 and above unless they have undergone a survey as per ESP.
4. Regulation 8:-- Information on compliance with requirement of bulk carrier
Any restrictions imposed on the carriage of solid bulk having density of 1780 kg/m3 and above shall be identified and recorded in the loading booklet as prescribed under chapter VI. The booklet should be endorsed by the administration. Such bulk carriers should be permanently marked on both sides below the deck line in prescribed format,
5. Regulation 10:- The shipper has to declare the density of cargo along with other information required by chapter VI.
6. Regulation 12:- Hold, ballast and dry space water ingress alarm
a) Bulk carriers shall be fitted with water level detectors in each cargo hold, giving an audio and visual alarm, one when the water level above inner bottom in any cargo hold reaches a height of 0.5 m and another at a height of not more than 2 m.
b) Water level detectors should be fitted in ballast tank forward of collision bulkhead when the liquid in tank reaches a level not exceeding 10% of tank capacity.
c) It should be fitted in any dry or void space other than chain locker, if that space extends forward of the foremost cargo hold, giving an audio-visual alarm at a water level of 0.1 m above the deck.
7. Regulation 13 :- Availability of pumping system
There should be means of pumping out water from space forward of collision bulkhead and from dry space which extend forward of foremost cargo hold. This means of pumping should be readily accessible from bridge or propulsion machinery space.
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