在潛水排污泵啟(qi)動(dong)之前，應由一(yi)名(ming)合格的電工對該系統(tong)進(jin)行檢查，以確(que)保(bao)下列下述各(ge)頂所要求的電器保(bao)護措施(shi)：

1、電(dian)源裝置應(ying)(ying)正常。電(dian)源電(dian)壓(ya)、頻率應(ying)(ying)符合規定(電(dian)壓(ya)為380V±5%，頻率為50Hz±1%),且(qie)電(dian)壓(ya)的瞬時(shi)超(chao)差不應(ying)(ying)超(chao)過10%。如果電(dian)源離(li)水泵使用的距離(li)較遠時(shi)，電(dian)纜的截面積應(ying)(ying)加粗，接(jie)頭應(ying)(ying)盡可能少些，否則會使電(dian)壓(ya)下降太(tai)多，且(qie)應(ying)(ying)在電(dian)纜接(jie)頭處(chu)作密封防(fang)水處(chu)理(li)，以(yi)防(fang)漏電(dian)；

2、潛水排污泵在運(yun)轉前(qian)，應用0~500兆(zhao)歐表檢查(cha)電機相間及相對地絕緣(yuan)電阻，低(di)値應大于2 MΩ;

3、在四芯電纜中(zhong)，帶有符號"┴"者(zhe)為接(jie)地(di)線(xian)(xian)（一般為綠黃雙(shuang)色線(xian)(xian)或黑色線(xian)(xian)）為了保證使用，須牢固接(jie)地(di)，并比其它線(xian)(xian)長出50mm；

4、條件許可時，電(dian)器保護(hu)(hu)裝置可包(bao)括：接地(di)保護(hu)(hu)器，地(di)面漏(lou)電(dian)斷流器等(deng)，但(dan)是，在任何(he)情況下，都須裝有(you)和電(dian)泵額定電(dian)流値(zhi)相符的慢熔保險熔斷絲；

5、電器控(kong)制裝(zhuang)置應(ying)防潮，井安(an)裝(zhuang)在防潮的(de)區域，電纜的(de)安(an)放應(ying)注意不(bu)要(yao)使其堵在泵的(de)吸入口處；

6、檢查轉(zhuan)(zhuan)(zhuan)子(zi)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)。在潛(qian)(qian)水排(pai)(pai)污(wu)(wu)泵(beng)初次啟動(dong)(dong)(dong)(dong)(dong)或(huo)重(zhong)新安(an)裝后都應檢查轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)，轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)不正確(que)運轉(zhuan)(zhuan)(zhuan)會(hui)造(zao)成潛(qian)(qian)水排(pai)(pai)污(wu)(wu)泵(beng)效率(lv)降低，或(huo)造(zao)成葉(xie)(xie)輪脫落等損壞水泵(beng)事頂。為(wei)測定轉(zhuan)(zhuan)(zhuan)子(zi)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)，在潛(qian)(qian)水排(pai)(pai)污(wu)(wu)泵(beng)安(an)裝之前，應舉高并作點動(dong)(dong)(dong)(dong)(dong)運行，符合下列(lie)情況即(ji)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)正確(que)，否(fou)則，應交換控制器(qi)上(shang)三相線(xian)中(zhong)任意兩(liang)根(gen)線(xian)的(de)位置以改變轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)：從(cong)泵(beng)的(de)頂部向(xiang)下看，轉(zhuan)(zhuan)(zhuan)子(zi)順(shun)時(shi)針(zhen)方(fang)(fang)向(xiang)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)，從(cong)底部向(xiang)上(shang)看〔即(ji)吸(xi)入口(kou)方(fang)(fang)向(xiang)〕可見葉(xie)(xie)片按逆時(shi)針(zhen)方(fang)(fang)向(xiang)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)。