ZMS CABLE way that the civil power distribution frequently used: There radial trunk type and ring three. Specific electricity load should be based on the characteristics of the actual distribution and power requirements, in line design, in accordance with the safe, reliable, economical and rational principles to optimize the combination. Electric wire: powered electrical equipment (elevators, pumps); general three-phase power supply. If the single-phase power load (oven, electric stove), should try to balance the three-phase line to receive. Lighting circuits: the supply of electricity for lighting equipment (lighting, and appliances) are generally single-phase loads, with single-phase AC 220V power supply, when the current exceeds 30A, it should use 380 / 220V three-phase Electric wire