1. Prepare technical clarification of ITB document (incl. Feed doc/dwg) in early project. 2. Check Interdiscipline documents and drawings 3. Prepare document electrical project specification and Datasheet 4. Prepare Electrical Calculation document 5. Review electrical drawing such as one line diagram, schematic, typical installation, layout, etc. 6. Prepare electrical material requisition 7. Prepare Technical Bid Evaluation (TBE) 8. Review technical vendor proposal 9. Review and comment electrical vendor document and drawing and other discipline 10. Meeting with vendor 11. Liaise with other discipline regarding impact theirs equipments to electrical system