IS 11639 : Part 2 : 1995 Structural Design of Penstocks - Criteria - Part 2 : Buried/Embedded Penstocks in Rock

1 Scope

This standard (Part 2) lays down the general requirements anddesign of circular penstocks, buried/embedded in rock or concrete,for conveyance of water from a reservoir, pond or surge tank to ahydraulic turbine in hydro-power plants.

1.2 This standard does not cover the design of specials like manifolds, wye-pieces, transitions, anchor blocks, etc.

2 References

IS 2002 :1992Steel plates for pressure vessels forintermediate and high temperature serviceincluding boilers

IS 2041 :1982Steel plate for pressure vessels used atmoderate and low temperature

IS 2825 :1969Code for unfired pressure vessels

IS 4880 : Part 4 :1971 Code of practice for design oftunnelsconveying water:Part 4 Structural design of concrete lining inrock

IS 4880 : Part 5 :1972 Code of practice for design oftunnelsconveying water:Part 5 Structural design of concrete lining insoft strata and soils

IS 7396 : Part 1 :1985 Criteria for hydraulic design ofsurge tanks:Part 1 Simple, restricted orifice anddifferential surge tanks

IS 8500 :1992Structural steel - Microalloyed (medium andhigh strength qualities)

IS 11625 :1986Criteria for hydraulic design of penstocks

IS 12967 : Part 1 :1990 Code of practice for analysis of hydraulictransients in hydro-electric and pumpingplants:Part 1 Criteria for analysis