Character codes and graphic symbols used in engineering design of pressurized water reactor nuclear power plants

This standard establishes a comprehensive system for text codes and graphic symbols specifically designed for engineering design within pressurized water reactor nuclear power plants. The document serves as a foundational reference to ensure uniformity and clarity in technical documentation across the nuclear industry. By defining consistent terminology and visual representations, it facilitates effective communication among engineers, designers, and technical personnel involved in the planning and operation of such facilities. The provisions cover a wide range of design elements, including electrical systems, mechanical components, and control logic, providing a standardized framework that enhances the precision and reliability of engineering drawings and specifications. Adherence to these definitions helps minimize misunderstandings and errors in complex nuclear engineering projects. The content focuses exclusively on the structural and functional aspects of the coding and symbolism methods, aiming to support high standards of safety and efficiency in the design phase. This systematic approach contributes to the overall coherence of technical data throughout the lifecycle of nuclear power plant engineering.