(1) immigration. maintenance checks and equipment electrical systems cut are the GIS (Gas Insulated Switchgear) high-voltage voltage size 69/27.5 kilo volts 3-phase electrical systems and devices, the power cut Indoor GIS (Gas Insulated Switchgear) 25 kilo Volt. 1-phase electric power system for sending money to propel trains system (OCS: Overhead Catenary System).
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