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电动机接地安装检查：关于水泵与电动机共轴的电泵，电动机应在恰当位置上设有接地螺钉，并在接地螺钉左近设有接地标志；小型潜水泵应有牢靠的接地安装和接地线，引出电缆的接地线上应有明显的接地标志；该标志应在电机运用期内不易被磨掉。此项是电泵的重要平安指标之一。
混流泵运转、运转应平稳，无异常振动和噪声，油封处无明显走漏，轴承工作温度不应高过75℃。
依据采购所需的流量、扬程、轴功率、效率、必需气蚀余量(或吸程)和运用条件，初步肯定混流泵 的型号，选择额定值与所需参数相同的泵
Inspection of motor grounding device: for the electric pump in which the water pump and motor are coaxial, the motor shall be equipped with grounding screw at appropriate position, and a grounding mark shall be set near the grounding screw; The small submersible pump shall have reliable grounding device and grounding wire, and the grounding wire of outgoing cable shall have obvious grounding mark; This sign shall not be easily worn off during the service life of the motor. This item is one of the important safety indexes of electric pump.
The mixed flow pump shall operate stably without abnormal vibration and noise, no obvious leakage at the oil seal, and the bearing operating temperature shall not be higher than 75 ℃.
According to the flow, head, shaft power, efficiency, necessary cavitation allowance (or suction) and service conditions required for procurement, preliminarily determine the model of mixed flow pump, and select the pump with the same rated value and required parameters
