This specification is applicable to the design of steel penstocks of grades 1，2 and 3 for hydropower stations，and it also provides reference for the design of steel penstocks of grades 4 and 5 ccording to the specific conditions of projects.The classification of steel penstocks shall be executed in lie with SDJ 12-1978" Classification and Design Specification for Water Conservancy and Hydroelectric Projects"（section：moutain and hilly areas）and its supplementary provisions.本书为全英文版。
鄂公网安备 42010302001612号 