9.3.4.2 Traction Power Supply
(1) Substations and other
The standard distance between substations shall be about 6 km. The maximum range of power supply in one direction shall be about 2 km.
In Phase 1, five substations and a switch house shall be installed at the locations shown in Figure 3.1-2.
Each substation shall have two sets of 2500 kw rectifiers including one as backup and shall be designed to accept one additional set in the future.
Two 6 kV cable lines of power distribution system shall be laid along the entire route to supply power to i1lumination and electrical facilities at stations and the rolling stock depot.
(2) Power supply costs
Tables 9.3.4-1 to 9.3.4-4 show unit costs of constructing substations and power distribution lines, based on which we estimated the construction costs in Phase l as shown below.