Xiamen Metro Line 1 and Line 2 requires power protection for its running and operation system. Kehua provides Xiamen Metro Line 1&2 with the engineering power system solution composed of hundreds power units, making sure the power supply of UPS integrated power, railway special communication, public security communication, integrated supervisory control, AFC (Automatic Fare Collection System), ACC (AFC Clearing Center), platform screen doors, emergency power supply and AC/DC power supply unit for 35kV substation.