For this project case in the picture, the high voltage part, transformer part and low voltage part of this prefabricated substation are fixed on the steel structure, the behind billboard that is the distribution equipment. The high voltage switch is a motor-type solid insulated switchgear; the low voltage switch is motor type also. All the operating circuits of the switches were led to the control box through the cable, the control box is fixed on the pole to facilitate the operation. The incoming and outgoing cables are connected to the power distribution equipment going up and down through the poles.