Precautions for use cutting submersible sewage pump

Select the appropriate submersible pump protector (such as leakage protector, air switch, phase off overcurrent protection, etc.) Do not use the knife switch directly connected.
1, before using the pump, you must first check the cable is damaged, handling and installation of the pump when the iron pull or damage the cable to avoid cable breakage after the accident caused by leakage. If the cable is cracked, replace the cable immediately. And check the electrical resistance of the pump with a megger to check whether the insulation resistance is not less than 1 megohm.
2, recognize the ground wire (ground is generally yellow, green or with a grounding logo), according to the provisions of the procedures to properly ground.
3, choose the appropriate submersible pump protector (such as leakage protection, air switch, phase off overcurrent protection, etc.) Do not use the knife switch directly connected.
4, according to the standard connected to the power cord, try to power, check the pump running is normal, and determine whether the steering is correct, if the steering is not correct, the three power lines in any two pairs can be connected (note the running time Not more than half a minute).
5, installed out of the water connector and the water hose (or iron), in the pump handle on the knot rope (absolutely can not use the cable instead of the role of the rope), the pump into the pumping this, connected to the power , You can use.
6, in order to ensure personal safety, in the pump during the work of electricity, is strictly prohibited in the pump near the installation of water operations (such as moving or inspection, troubleshooting, etc.) to contact the pump in case of electrical leakage and accident.
7, is strictly prohibited the overall exposure of the pump surface long-term operation (or short-term operation) pump "open", "stop" should not be too frequent to prevent motor overheating damage.
8, long-term pumping high sand content of the liquid on the WQK / QG with cutting device submersible sewage pump overcurrent parts wear large, recommended the use of swirl sewage sewage submersible sewage pump products.
9, if found WQK / QG with cutting device submersible sewage pump in operation, there is no turn, protector tripping, fuse blown and other abnormal phenomena, should immediately cut off the power, check the power protector wiring, etc. whether there is a problem.
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