1'?4 Bang Pakong Combined Cycle (Unit 1-2 Replacement) Project Technical Document constructed. During relocation and/or modification work, measures to maintain a serviceability of the existing system shall be implemented with the Contractor’s expense. Permission shall be granted by EGAT prior to commencement of any demolition, relocation, and modification work. 2A.2 Buildings and Structures Buildings and Structures shall be designed and constmcted according to the provision of the Building Control Act (B.E. 2522) the Ministerial Regulations issued under the Building Control Act (B.E. 2522), and the codes and standards listed in Section lB.3.11 whichever is more stringent. The ground floor slab of all buildings and structures shall be reinforced concrete supported by piles or on beams. 2A.2.1 Generation Building The Generation Building shall be designed to provide support, enclosure, protection, thennal and noise reduction, and access to the turbine, generator and associated 8CC6SSO1'i6S. The building shall be an enclosed, air-change controlled, custom-designed, structural steel frame with metal roof panel over insulation, exterior insulated metal wall panels. The building ventilation system shall be provided with wind driven rain resistant louvers in combination with mechanical ventilation system meeting HVAC system design requirements specified in Section lD.2.7, Volwne 2. Personnel doors, rolling shutter doors and windows shall be provided. Ladder to roof together with walkway and handrails on the building roof shall be provided. The Generation Building shall have sufficient equipment laydown space for dismantling and servicing the generator, combustion turbine and steam turbine at the same time. Finishing surface for all the concrete floors in the building shall be non-slick and heavy duty type of epoxy. The steam turbine generator shall be supported on a reinforced concrete framed pedestal. The fotmdation design shall be based on the turbine manufacturer's recommendations and general arrangement requirements. In both instances, isolation joints shall be provided between block foundation and adjoining floor slab. The ground floor slab shall be reinforced concrete supported by piles or on beams. The Contractor shall submit materials and construction procedures of floor finishing prior to commencing of the work to EGAT for approval. Provision shall also be made for an overhead bridge crane(s) of adequate capacity and clearance to allow removal of various equipment pans of turbine and generator for repair, maintenance, and replacement. Architectural details of the Generation Building shall confonn to the following: Interior wall Masonry or dry wall with plastering and painting Exterior wall l Metal wall panel with rock wool insulation and perforated metal liner above concrete wall with a plaster and painted approximately 1.20 meter high Roof Metal roof panel with rock wool insulation and perforated metal liner Windows Standard fixed/operable aluminum system Volume 2 Page 2A-5