Power Distribution Systems In The Ship Inspection Techniques

Since the end of last century , with the development of navigation, Great progress has been made in Chinese shipbuilding. Type of shipbuilding has changed from single internal ship with less-tonnage and less addition product to multi-export ship with huge-tonnage and great addition product. With the 17.5W DWT BULK Cargo and 8530TEU Container ship and 30WT VLCC Oil Tanker Building in china, the technology of shipbuilding will develop to Huge Tonnage. Along with the development of shipbuilding ,more and more electric power needed for Huge Tonnage Ship, So the Low Voltage Distribution System can not be suitable for Huge Tonnage ship. High-Middle Voltage Distribution System is widely used for Huge Tonnage Ship in international shipbuilding because of Safety and highly active and economical , Such as the middle voltage bow thrust electromotor and transform device and electric distribution system in Huge Container ship and electric propulsion ship. Now we have no technical specifications and standard for High-Middle Voltage Distribution System in shipbuilding in fact, so many land use standard were used in shipbuilding in china. Because that, author analyze and study the difficult and non-clearly questions about High-Middle Voltage Distribution System in shipbuilding in fact and study the Standard IEC and IACS technical specifications about High-Middle Voltage Distribution System.The Main research in the thesis:1. High -Middle Voltage Cable Installation2. High -Middle Voltage Equipment Installation3. System Safety Protection4. Fault Detection and System Monitor5. Short Circuit CalculationThe study thought can be reference to instituting the Standard of design and installation for High-Middle Voltage Distribution System in Shipbuilding and compiling the rules of classification society. The study thought also can help to solve the problems in shipbuilding.