Use submersible pump considerations
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1 submersible pump diving depth is generally 0.5 ~ 3m, in the water, it should be lifted vertically, not lying on the ground, but can not be caught in the mud. 2 In operation, if the amount of water is significantly reduced, the motor suddenly stops or an abnormal sound need to mention pump inspection, you must first cut off the power. 3, such as poor grounding, found that the switch, the unit or the circuit leakage phenomenon, the power should be cut off quickly, check handling. 4 can not extract large amounts of water, especially with mechanical seal submersible pump. 5 "open" and "stop" should not be too frequent. Shut down 3-5 minutes after the restart. 7 Run, no water in the wells wash things, wet hands, barefoot can not open, turn off the electrical switch, in case of electric pump leakage. 8 power supply should be selected as required. If the use of power and water pump far apart, the cross-sectional area of ​​the wiring cable should be appropriately increased, the joint should be minimal to ensure that the normal use of the voltage between 342-418 V. To ensure safety, a 1 m or more iron bar can be buried as a ground wire in wet places near the power supply or water pump. 9 can not be dehydrated. If you need to test the machine on land, the running time shall not exceed 5min. In the pumping process, if the water level continues to decline, be careful not to let submersible pump out of the water surface. 10 boot, if the pump impeller reversing lead to less water or no water, should immediately shut down, switch the three-phase cable in the three-phase wire in any two-phase connection can make it forward water. 11 submersible pump into the water or raised water, you must pull the ear climbing rope, must not pull the cable. 12 Do not long-term immersion in water when not in use, should be suspended in a dry and ventilated room. 13 integral seal box is the key seal submersible pump components, the quality of a direct impact on whether the normal operation of the motor. Submersible pump operation after 50 h, it should be put on the ground for inspection. 14 After using for 1 year, the corrosion of the submersible pump should be checked thoroughly and painted rust-proof. After 1-2 years, conduct a major inspection, disassemble all the components for overhaul, scrubbing, descaling, and then reassembled. 15 After shutting down, the water in the tube must be reflowed before starting. If the water still does not start, should identify the reasons Author: Anonymous