PROJECT NAME : Consulting Services for 230 kV Underground Transmission Line between Bangkapi and Chidlom Terminal Stations Project
Owner : Metropolitan Electricity of Thailand (MEA)
Client : Metropolitan Electricity of Thailand (MEA)
Location : Bangkok, Thailand
Period of Services : 2002-2004
Project Cost : Approx. 5,000 Million Baht
Scope of Services and Description of Duties :
At present, the existing Childom station is equipped with 230 kV and 69 kV GIS’s and three 250 MVA transformer. The substation is supplied with 230 kV transmission line from the Bangkapi substation at about 7.1 kilometers distance via two circuits of 230 kV oil-filled underground cable directly buried along the right of way of the eastern railroad and two other streets. Since Chidlom substation has been in operation for more than twenty years and the cables have undergone a series of repair mainly due to oil leakage, they are now in unreliable condition and needed to be changed. Feasibility studies done by MEA show that new cables should be installed in a tunnel about 2.6 meters inside diameter to be constructed mainly beneath the right of way of a canal Sansab.
Consortium of Thai Consultants and international specialists for tunnel design, HV cable accommodation and substation design, ATT, Tokyo Electric Power Services Co. (TEPSCO), Electricite’ de France (EDF) and TEAM Consulting Engineering and Management Co., Ltd. (TEAM), Provided the engineering services :
ATT Consultants Co., Ltd. had been selected to act as IE & LE with the following tasks:
• First stage: Study on selection of transmitting voltage (230 kV or 69 kV) at the capacity of 600 MVA, 900 MVA and 1,200 MVA.
• Second stage: Development of conceptual design and criteria for detail design including permission document and EIA report
• Third stage: Completion of solicitation document and budget estimation
• Fourth stage: Assistance to MEA on bid evaluation
• Fifth stage: Approval of drawings and other documents submitted by Contractor