Vertical Axial shut up and running in a vertical axial flow pump shut up and running in time, if not pay attention, might damage the pump. 1, the power supply should be safe, secure, normal. Supply voltage, frequency should comply with (voltage is 380V ± 5%, frequency of 50Hz ± 1%), and the instantaneous voltage tolerance should not exceed 10%. If the power supply from the pump when using square farther away, cross-sectional area of ??the cable should be bold, perhaps due less joints, or cause voltage drops too much, and should be sealed in a waterproof cable joints to prevent leakage 2 vertical axial flow before working with a 0 to 500 ZhaoOuBiao View motor phases and relative insulation resistance should be greater than the minimum 値 2MΩ; 3, four-core cable with the symbol "┴" who is the ground wire (usually green-yellow lines or black lines) in order to ensure safe use, it is necessary to solid ground, and grow than other lines 50mm; 4, when conditions permit, electrical protection device may include: grounding protection, earth leakage breakers and so on, but, in any case, must be equipped with pumps rated 値 consistent sound slow blow fuses; 5, electrical control equipment should be moisture-proof, well installed in damp areas, the cable should be careful not to place it blocking the suction inlet of the pump; 6, see the scrolling direction of the rotor. Submersible sewage pump after the first time or re-launching device should see the scrolling direction, scrolling direction inaccurate operation will form a vertical axial flow pump power down, or the formation of damaged water pump impeller and other things off the top. To determine the scrolling direction of the rotor, vertical axial flow before eventually device should raise and make jog operation that fit the following conditions accurately rolling direction, otherwise, should share in the orientation of the three-phase line wanton two lines on the controller to alter the scroll direction: look down from the top of the pump rotor clockwise to scroll from the bottom to the point of view [that] shows the blade suction inlet direction counterclockwise to scroll. After the pre-launch and Vertical Axial closed by a qualified electrician should pump system for harsh view, in order to ensure electrical protection measures demanded satisfaction of the above, and then extended in the vertical axial pump life. Official website: http: //www.ythlby.cn/