What are the factors influencing safety?
Assurance of submersible safety begins with the design process. Literally thousands of labour hours are required and hundreds of drawings are generated. Detailed calculations are required in any area of the design. All materials to be used during construction must be certified and specified beforehand. When the design is finally complete it will be exhaustively analyzed by the engineers of the regulatory agency and classification society, and those plans that are satisfactory will be approved. Once all plans have been authorized, construction may commence. Society surveyors are on hand for the construction process. They assure the quality of the materials and the construction techniques. They monitor and witness all the production process. Inspectors also verify the installation and testing of mechanical and electrical systems, check safety devices and examine critical dimensions. The submarines are equipped with several pumps, fire fighting systems and advanced life support system. Th
