Components of the Facilities shall be designed to have the following economic design life:
System Components | Economic Design Life (years) |
Concrete dams and other concrete structures such as buildings, basins, storage tanks, etc. | [•] |
Transmission Pipes, Valves and Mechanical Piping Works | [•] |
Steel Dam (if used) | [•] |
Rubber dam (if used) or dam made from any material other than concrete or steel | [•] |
Electro-mechanical works/Instrumentation Works | [•] |
Access Road Pavement(Asphalt) | [•] |
Power Transmission Lines | [•] |
The Company shall submit to the Agency evidence of track record showing that the proposed materials have a safety factor of at least 1.25 on design parameters required to achieve the economic design life specified above. For this purpose concrete materials shall be designated by design mix and compressive strength. The rest shall be designated by the appropriate industry standard quality classification. Materials or equipment without appropriate industry standard quality classification shall not be used.