Amendment 0009 Update Sheet Vol 4 ES103 and ES501.pdf

This document is a set of electrical construction drawings and specifications for a federal facility project. Sheet ES103 depicts an Electrical Site Plan for Area 3, showing the layout of electrical infrastructure including a ductbank schedule with twelve entries identifying various conduit sizes (ranging from 2" to 4"), types (PVC and concrete encased), and purposes (primary 288V, secondary 480V, spare, and control circuits). The plan includes details on cable routing, temporary power connections, pole locations, and underground utility positioning. The drawing references general sheet notes regarding electrical specifications, symbol legends, abbreviations, and cross-references to additional electrical distribution documentation (EP903 series sheets).

Sheet ES501 provides detailed specifications and cross-sectional views for critical electrical infrastructure components. It includes four primary detail sections: a Reinforced Concrete Encased Ductbank specification with yellow warning tape and polyester rope installation requirements; a Concrete Encased Ductbank design showing conduit spacing and 3,000 PSI concrete specifications; a Utility Vault design with recess pulling rings and center opening access; and a Transformer Section showing primary and secondary connections with rackway details. The specifications emphasize concrete strength requirements (3,000 PSI minimum at 28 days), proper ductbank conductor spacing, conduit material standards (PVC with multiple polyester rope pulls), and structural support configurations. Additional details include handhole specifications, direct buried conduit standards, and transformer installation requirements with 3/4" radius elbows for concrete encasement.