1

• Fault Level Calculations for EHV , MV and LV

• Plant Layout
• Main machinery Details

• Power Distribution Scheme

• Lists of Electrical Drives and consumers

• Major Cable Routes ( Overhead structures/ Cable Tunnels)

• Fault level from Power Utility

• Selection of cable sizes for various motor ratings considering fault clearing time and voltage drops

• Impedances and Reactances of Power Transformers, Distribution Transformers and Alternators used for Captive Power generation

• GA Drawings for Civil Design indicating building dimensions , requirement of openings in slabs/ walls, inserts , cable trenches etc.

• Approved drawings for Electrical Equipment
• Concurrence from Mechanical and Civil Departments

3

• Power Cable Schedules
• Layout of Cable racks and Trays
• Cable Routing Drawings

• Approved drawings for various Electrical Equipment
• Layout of Electrical Buildings & Process departments
• Layout of Cable racks and Trays
• Power Cable schedules

• Illumination Design Report
• Lighting Layout drawings showing:
• Location
• Circuit no of LDB from which fed
• Phase to which connected
• Cable size
• Load on each circuit

• GA drawings of Electrical Buildings & Process departments

• Earthing Design Report
• Earthing Layout drawings for various buildings
• Lightning Protection Design Report
• Lightning protection layout drawings

• Soil Resistivity Values
• GA drawings of Electrical Buildings & Process departments

• Input / output lists for Processor Controllers and their addresses

• List of Electrical Drives and Consumers
• Process Flow Diagrams

• P & I Diagrams and close loop controls

• Preliminary P & I Diagrams from Mechanical Machinery supplier

• Schedule of Instruments

• List of Electrical Drives and Consumers
• Process Flow Diagrams

• Block Interlocking Diagrams and start -stop sequences

• Interlocking and protection requirements from Mechanical Machinery supplier

• Control Cabling Concepts for various types of drives

• Location of field junction boxes for collection of Digital and Analog signals

• Layout of equipment in Electrical buildings and Process Departments

• Control Cable Schedules

• Approved drawings from Sub-contractors
• Location of field junction boxes for collection of Digital and Analog signals

• C & I cable routing drawings

• Layout of cable racks and trays
• Control Cable schedules.

• Cable termination plans and connection details

• Approved drawings from Sub-Contractors for Electrical and C & I Equipment