“回南天”是指由于季节变化,由寒冷干燥的北风转变为潮湿温暖的南风时,由于室内物件温度较低,潮湿温暖的南风使到水份凝聚在物件上,使到物件表面出现小水珠,这段时期就叫“回南天”。就是这种潮湿气候对电气装备的影响会导致绝缘材料性能降低,受潮的装备在通电时,轻则会发生漏电,重则会引起短路,烧毁部件,甚至危及设备和人身安全。排涝泵站作为城市排涝主要手段,泵站电机防潮意义尤为重要。 “Back to the South ” refers to due to seasonal changes from the cold and dry north wind into warm and humid South wind, due to the lower temperature of indoor objects, humid warm southerly so that condensation of water on the object, so that Small drops of water on the surface of the object, this period is called “back to Nantian ”. It is this damp climate impact on electrical equipment will lead to insulation performance degradation, damp equipment in the power, ranging from leakage occurs, will cause short circuit, burned parts, and even endanger the safety of equipment and personal safety. Drainage pumping station As the main means of urban drainage, pump motor moisture is particularly important significance.