The Prak Thea creator Yu, Cun Yi Chairperson Surapong Chiraratananon Examination Committee Malik, Arif Examination committee Swedish International Development Cooperation Agency (Sida) Scholarship Donor text series technical report th Bangkok Asian Institute of Technology 1996 continuing eng 74 leaves This research study has been written to survey load consumption for the consumers as: residential consumer, commercial consumer, industrial consumer, governmental agencies, and public consumer. Load demand reserve for load growth 10 % from 1996 to 2009. The design of distribution system consider about the supplying electricity to the customers by some characteristics, cross section of conductors, power loss, voltage drop. To compare those characteristics between 6.3 kV, 22 kV, and 44 kV which voltage level is better. The improving of power factor from 0.8 to 0.9 by selecting capacitor banks to reduce the reactive power. Furthermore the future expansion and operation and maintenance are studied. Also consider about the economic evaluation for selecting the best of three voltage levels by comparing some characteristics above. Finally the environment domain is focused by considering the visual impact, social impact and health impact. A research study in partial fulfillment of the requirements for the degree of Master of Engineering Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1996 Electric power distribution Cambodia Sihanoukville Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B14510 http://203.159.5.9/ait-thesis/detail.php?q=B14510 301198 20260817163658.0