标准号:IS 11639 Pt.1-1986
发布日期:1986/11/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This standard ( Part 1 ) lays down the various forces acting on surface penstocks and structural design of penstocks conveying water under pressure flow conditions. However, this does not cover specials of pen-stocks like penstock supports, manifolds, bends, expansion joints, manholes, branch outlets, etc.