目录简介 | Content 1 Scope 2 Normative References 3 General Provisions 4 Manufacture of Steel Penstocks 5 Installation of Steel Penstocks 6 Welding of Steel Penstocks 7 Post-weld Stress Relief Treatment of Steel Penstock 8 Anticorrosion of Steel Penstocks 9 Hydraulic Test 10 Packaging, Transportation 11 Acceptance Annex A (Informative Annex) Performance Standard and Surface Quality Standard of Steel Plates Annex B (Informative Annex) : Steel Plates in Common Use for Manufacture of Steel Penstocks Abroad Annex C (Informative Annex): Permissible Thickness Deviation and Additional Thickness Value of Steel Plates Annex D (Normative Annex): Preparation, Size, Test Method and Approval Standard of Test Piece for Mechanical Property in Welding Process Specification Assessment Annex E (Informative Annex): Recommended Forms for Welding Process Instruction and Assessment Report Annex F (Normative Annex): Classification and grouping of steel material according to chemical composition, mechanical property and welding performance Annex G (Normative Annex): Welding Procedure Qualification of Composite Stainless Steel Plate Annex H (Informative Annex): Selection of welding material of penstocks Annex I (Normative Annex) :De-rusting Grade of Steel Surface before Painting Annex J (Informative Annex): Conversion Table for Atmosphere Dew-point Annex K (Informative Annex): Check of Metal Coating Thickness and Binding Ability
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