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® WorleyParsons <br /> resources&energy <br /> Allowable variances and applicable local code interpretations will be established before <br /> project commencement. <br /> Additionally all plant areas and structures will be designed and configured to meet OSHA <br /> requirements contained in Part 1910 of the U.S. Code of Federal Regulations. <br /> 2.3.3 Combustion Turbine Support Structure <br /> The combustion turbine support foundation will be designed in accordance with the <br /> manufacturer's recommendations and the Geotechnical Report. Both static and dynamic <br /> loading criteria set forth by the manufacturer will be considered. Site specific seismic and <br /> wind conditions will be reviewed and compared to the seismic and wind conditions that <br /> govern the manufacturer's loading criteria. In general, the structure will be a reinforced <br /> concrete mat foundation to support the equipment anchorages. <br /> 2.3.4 HRSG Structure <br /> The HRSG structure and related equipment will be supported on reinforced concrete mat <br /> foundations. The detailed foundation design will be based on the final Geotechnical <br /> Report. <br /> The HRSGs and self-supported steel stacks and platforms will be supported by a <br /> reinforced concrete foundation. If required by the final Geotechnical Report, precast <br /> concrete piles or other equally suitable pile design will be utilized. <br /> 2.3.5 Tank Foundations <br /> The cylindrical vertical tanks will be supported on suitable foundations consisting of a <br /> ring-wall foundation or a mat foundation depending on the size of the tank. <br /> 2.3.6 Transformer Foundations and Protection <br /> Transformer foundations will be designed and constructed in accordance with the <br /> requirements of NFPA, local codes and regulations, and manufacturer's recommendations. <br /> Spill containment will be provided for the generator step-up transformer and unit auxiliary <br /> transformers, and will be topped with galvanized steel grating. Reinforced concrete <br /> retention pits, with a low point sump, will be provided for the transformers and will be <br /> sized to contain at least the full oil volume of the transformer. Transformer firewalls will <br /> be provided between oil-filled transformers and adjacent structures and equipment as <br /> required by the National Electrical Safety Code. The walls will be constructed of <br /> reinforced concrete. The transformer pits will have a manually operated outlet valve and <br /> drain line routed to the oily water separator. The valve will be a PIV type, but of a <br /> different color than fire system PIVs to provide needed differentiation. <br /> Smaller (oil volume < 500gals) oil filled transformers will be located in bermed areas to <br /> Lodi Energy Center 3.2-5 LEC AFC <br /> 071608 Rev.A <br />