Bobs Photos of Freo

By sommervl

Nada

Livestock Carrier Nada in the early morning about to berth in Fremantle.

Apparently some history with this ship...from the internet...don't blame me for the grammar.

The First Livestock Carrier in the World to meet AMSA Standard was born in CSSC Chengxi, China.

Depending on the larger capacity to accommodate 20,000 cattle or 110,000 sheep, this carrier becomes the second largest livestock carrier in the world today.

NADA was a 2500-container vessel originally. The overall length is 201.41m, and the molded breadth is 32.24m. It was divided into 5 holds. Now, this vessel is converted into a livestock carrier which meets BV rules and AMSA standard.

The conversion for MV NADA has large amounts of work scope, high technical content and difficult construction requirement. The conversion work for MV Nada is very difficult. As the pen houses area reaches to 30,000 square meters, all corner welds of fence structure must be full weld for easy flushing. In addition, as AMSA has accurate requirements for the pen house height and railing space and the clearance is only allowed within ±2mm, and each section pillar must be joint vertically. For this reason, Chengxi specially made consistent modules and tools, which obtains the approval from the Owner and ensures the accuracy of works.

According to AMSA requirement, there are over 10,000 test points for air flow in the pen house area for MV NADA, and the wind speed for each measuring point should be not less than 0.5m/s. Since below main deck is fully-enclosed structure but above main deck is open structures, it was affected by outside greatly and the wind speed is hard to control. Through increase outlet dimension, install air deflector and add small fans, Chengxi achieved to make below main deck part meets the AMSA standard. In addition, through change the outlet form, add branch air duct, add air outlet and guiding blade, efficiently improves the ventilation of upper part above main deck. It was approved by the AMSA inspector during two times of inspection and high praised by the site inspector.

After modification, MV NADA was equipped with independent main power and secondary power system. In this case, even the emergencies as power off or fire occurs, the secondary power system will be started immediately so as to ensure the normal life of livestock. For the secondary power, Chengxi made special design for the cable running of secondary power and AO isolation, which enables AO isolation absolutely betweens main power and secondary power system. In addition, the pen house area get power supplied separately from Port and Starboard side and backs up mutually. Since lots of thin plate was used on board, and it is difficult to control the welding deformation, Chengxi makes elaborately organizing and planning, and the evenness is always under control and get the approval from the Owner.

During the conversion for MV Nada, Chengxi assigned 3 project managers, 7 supervisors, 8 inspectors and 8 safety officers for the project control. With the high attention and full cooperation of relevant departments and workshops, all the difficulties were overcame step by step and the whole project was successfully completed.

The successful completion of MV NADA not only initiates the conversion of livestock carrier in the world but also makes Chengxi the first shipyard in China for such conversion. In addition, the techniques and experiences was accumulated and the technical and production teams get trained which lays good foundation for Chengxi Shipyard Co., Ltd to provide better services to ship owners.

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