Method Statement for aux steam piping installation (rev d)

This method gives Preparation and Erection method with feasibility and optimize. In order to ensure standards, technical specifications, quality, safety and schedule for BOP Piping works ( Aux. Steam System)

FOR APPROVAL D C B 20/07/2017 10/10/2016 16/09/2016 A 11/08/2016 Rev Date Y.S.Kwon Y.S.Kwon Y.S.Kwon Y.S.Kwon Prepared S.Y.Kwak S.Y.Kwak S.Y.Kwak S.Y.Kwak Checked C.G Kim S.J.Park S.J.Park S.J.Park Approved FOR APPROVAL FOR APPROVAL FOR APPROVAL FOR APPROVAL Details of Revision Owner VIETNAM ELECTRICITY Owner’s Engineer POWER ENGINEERING CONSULTING JS COMPANY Contractor Sub-Supplier LILAMA CORPORATION/LILAMA18 JSC Project VINH TAN THERMAL POWER PLANT Date Name (DD.MM.YYYY) Prepared 20/07/2017 Y.S.Kwon Checked 20/07/2017 S.Y.Kwak Approved 20/07/2017 C.G Kim Title METHOD STATEMENT FOR AUX.STEAM VT_2 AREA PIPING INSTALLATION Project Code VT4 UAS Code DD09 Unit Code P0 KKS Code ZEN Reg No Mechanical Dept 040353 Rev D Document No VT4-DD09-P0ZEN-040353 Page-No 18 Pages Dept CONTENTS EVNGENC03 / VTTPMB DMPP Consortium Vinh Tan Thermal Power Plant 1.0 PURPOSE 2.0 SCOPE 3.0 REFERENCE DOCUMENT 4.0 MACHINERY & EQUIPMENT 5.0 REPONSIBILITY 6.0 PROCEDURE 7.0 INSPECTION .15 8.0 ENVIROMENT HEALTH SAFETY SECURITY (EHSS) 15 8.1 Environment 15 8.2 Health 15 8.3 Safety 18 9.0 ATTACHMENTS .18 Job Safety Analysis (JSA) Commitment WPS & PQR 1.0 PURPOSE DOC.NO VT4-DD09-P0ZEN-040353 Rev.D of 18 EVNGENC03 / VTTPMB DMPP Consortium Vinh Tan Thermal Power Plant This method gives Preparation and Erection method with feasibility and optimize In order to ensure standards, technical specifications, quality, safety and schedule for BOP Piping works ( Aux Steam System) 2.0 SCOPE This method is Preparation & Erection application plan - Vinh Tan (2x600MW) Thermal Power Plan Project 3.0 4.0 REFERENCE DOCUMENT - Issued for Construction Drawings - Construction schedule - Inspection & Testing Plan (ITP) for BLR and BOP Piping Installation - WPS & PQR - Approved contract Quality Plan - Project EHSS Plan - All piping works shall be fabricated in accordance with ASME 31.1 and B31.1 modified, API 582 and supplemented by the requirements in this specification - ASME SEC IX: Welding and Brazing Qualification MACHINERY & EQUIPMENT Machine and facilities served for construction must be completed safety check procedure before starting work at the project Only authorized drivers and operators are allowed to operate equipments & machines All lifting equipment as well as its accessories shall be inspected periodically - Air compressor for cleaning - Welding machines - Chain Blocks, Grinding machine DOC.NO VT4-DD09-P0ZEN-040353 Rev.D of 18 EVNGENC03 / VTTPMB DMPP Consortium 5.0 Vinh Tan Thermal Power Plant - High pressure pump for pressure test - Hydraulic Crane, trailer and Boom Truck, Etc REPONSIBILITY - It is overall responsible for Site Manager and Piping Manager to organize resource prior to perform construction as Owner’s requisition in comply with Safety, Quality and Schedule requirements - It is responsible for Construction Manager and Site Engineer to conduct the construction activities according to the relevant project specification complied with Safety, Quality and Schedule requirements - The QC Manager shall ensure the quality of conducted work according to project specification complied with Quality requirements and quality dossier 6.0 PROCEDURE 6.1 MATERIAL STORAGE AND HANDLING - All piping materials shall be delivered with smooth condition without damage from storage area to field - Internal and external surfaces to be thermally cut or welded shall be clean and free from paint, oil, rust, scale, or other materials that will be detrimental to either the weld or the base metal when heat is applied - Piping materials shall be stored in a suitable manner to preclude mixing of different kind of materials and easily check the quantities - Stainless steel piping materials shall be stored in separated place from carbon steel material store and direct connection between stainless steel and carbon steel is not allowed - Piping and fitting shall be capped in an end to prevent ingress of water and any foreign matter - Thread end shall be plugged or capped with waterproof type material - Identification marked on piping material shall be maintained before fully erection, fitting up, welding DOC.NO VT4-DD09-P0ZEN-040353 Rev.D of 18 EVNGENC03 / VTTPMB DMPP Consortium - Vinh Tan Thermal Power Plant Welding joints shall be identified by welding joint numbers, welder numbers and welding complete date located 50-70mm away from the weld seam All welding joints shall be written by welding foremen or each welder 6.1.1 Material storage plan All material (including Pipe spool, valve, etc for piping installation work) shall unload in VT2 near working area Storage area as below If needed, some of material shall lift to the TBN BLDG top floor 6.2 SCAFFOLDING - Scaffolding materials shall have to be checked prior to use on certified quality control CA, CQ - Workers have to be trained with a practicing certification by qualified experts before working at the scaffold installation location - Scaffolding shall have to be installed to the main structure ensuring safety, clean during work - To ensure the safety(e.q to avoid falling objects or workers), improper connection of scaffolding through structures has to be restricted while plant operating - Proper scaffolding work as below DOC.NO VT4-DD09-P0ZEN-040353 Rev.D of 18 EVNGENC03 / VTTPMB DMPP Consortium Vinh Tan Thermal Power Plant