... machining accuracy. Each factory lathe bed and guide rail at a distance of 2.5 meters, the parallel ... 2.Power supply requirement:Three-phase AC380V Frequency 50Hz 2.1.Three-phase voltage stability ≤±5%,three-phase power supply unbalanced degree≤2.5 ... of customers 380 ± 10%, 50Hz, three-phase, neutral - ground; regulator output 380 ± 2%, 50Hz, three-phase, neutral - ground, 50KVALaser cutting ...