Before using the submersible sewage pump should pay attention to matters

Submersible sewage pump Before use, should be submersible sewage pumps, switches and wire and cable and other related equipment for all the checks.

1, submersible sewage pump before use, should check the motor stator winding insulation resistance to ground, its value is usually 50 ~ 100MΩ above. When the measured cold insulation resistance of less than 1MΩ, should view the stator winding insulation resistance decline causes, discharge defects, so that the insulation resistance to restore to normal use before, or to form a pump submersible motor stator winding damage.

2, before the use of submersible sewage pump should be installed a dedicated maintenance switch or standard consistent overload protection switch to make submersible sewage pump failure in the use of fault, can be reliably and effectively maintained without damage to the submersible sewage pump motor Stator windings, and even the entire motor.

3, before the use of submersible sewage pump, the shell should be firmly grounded, submersible pump cable leads with a grounding symbol of the yellow-green two-color grounding wire should be firmly grounded. If limited to conditions, there is no fixed bottom line, in the power supply or submersible sewage pump near the address of wet land buried in the depth of 2m metal rod as a ground.

4, before the use of submersible sewage pump, oil-filled and dry-type should be checked inside the motor or sealed oil is not filled with oil in the room, if not filled in accordance with the rules should be filled to fill the rules of oil; Submersible pumps, motor lumens should be filled with water or factory rules and equipment of aqueous solution.

5, submersible sewage pump should normally be lifted, do not use the horizontal (horizontal submersible sewage pump outside), should not fall into the mud, to avoid damage caused by poor heat dissipation of the motor. Submersible sewage pump can be used bamboo baskets or net basket cover, to avoid aquatic debris blocking filter, affecting the submersible sewage pump suction or spare the pump impeller, damage to the submersible sewage pump.

6, submersible sewage pump usually should not dehydration work, if on the ground for trial work, the dehydration working time usually should not exceed 2min. Water-filled submersible sewage pump If the motor inside the overflow of water or can not be filled with water (filter circulation), the prohibition of dehydration work. 3-phase submersible sewage pump before use, you should check the direction of rotation is not correct, such as the submersible sewage pump after the launch of a small amount of water to clarify the steering anti-parking should be immediately, for the next cable or cable out of any two-phase wiring position .