Bang Pakong Combined Cycle (Unit l»2 Replacement) Project Technical Document Doors shall be provided for access and equipment removal. Platform with sufficient width for equipment loading and unloading including removable handrail shall be provided. Louvers shall be located in the walls as required by the HVAC system. Emergency exit door shall be provided per requirement stipulated in relevant laws enforced in Thailand. Minimum of two (2) fire escape stairways on the opposite direction of the building or container shall be provided. Emergency eye and face wash shall be provided in Battery Room Area. In case of container, the size and construction shall be selected by the Contractor and shall be suitable for relocation according to EGAT’s request. 2A.2.5 230 kV GIS Combined Cycle Block Switchyard Building, Transformer Foundations, and Firewall The GIS Building shall be a two-storey reinforced concrete structure with masonry walls and supported on piling foundation. The building shall consist of a Cable Room and GIS Room on the first and second floor, respectively. The GIS Room shall be equipped with overhead crane of adequate capacity and adequate clearance to facilitate the equipment installation and allow removal of equipment for repair, maintenance, and replacement. Roof of the building shall be metal sheet with insulation and non-perforated metal liner. The provided Cable Room shall be of 3.00 m. minimum height. Ground floor elevation of Cable Room shall be +3.0 m. above MSL. Steel-troweled finish shall be applied for the Cable Room floor and the finish floor surface shall be sloped to floor drains or drainage trenches as appropriate. Openings on floor and wall, all conduits and trenches for the Cable Room shall be sealed to prevent rodents. Ventilation louvers shall be supplied with screens to prevent entry of rodents. Equipotential copper wire mat embedded in slab of Cable Room and GIS Room shall be provided for equipotential purpose. Finish floor of the GIS Room shall be non-slick and heavy duty type of epoxy. The Contractor shall submit materials and construction procedures of floor finishing prior to commencing of the work to EGAT for approval. A stair shall be provided to access to the GIS Room. An access door and rolling shutter door for the Cable Room and GIS Room shall be provided. Rolling shutter doors shall have a proper size to facilitate the equipment installation and allow removal of equipment for repair, maintenance, and replacement. A reinforced concrete platform with sufficient width for equipment loading and unloading equipped with a removable handrail shall be provided for the GIS Room. The building ventilation system shall be provided with ventilation fans and louvers as required by the HVAC system design criteria mentioned in Section 2B.17, Volume 2. Fire protection system for the GIS Building shall be provided in accordance with Section 2A.13, Volume 2. All openings and penetrations through fire barriers such as doors, windows, piping, raceway, and ducts shall also be designed according to the required fire ratings. Volume 2 Page 2A-l5