動力電纜為J，有效抑制電磁波的輻射和傳導，400噸精密軸承壓裝單柱液壓機驅動的電動機電纜必用屏蔽電纜，屏蔽層的電導必須至少為每相導線芯電導的i／10。根據400噸精密軸承壓裝單柱液壓機的功率導線截面適合的三芯或四芯屏蔽動力電纜，尤其是從400噸單柱液壓機到電(dian)(dian)(dian)動機(ji)之問的(de)(de)動力電(dian)(dian)(dian)纜(lan)要選屏蔽結構的(de)(de)電(dian)(dian)(dian)纜(lan)，且要盡可(ke)(ke)能短，這樣可(ke)(ke)降低電(dian)(dian)(dian)磁(ci)輻(fu)射和容性(xing)漏電(dian)(dian)(dian)流。當電(dian)(dian)(dian)纜(lan)超過設(she)(she)備所(suo)允許的(de)(de)電(dian)(dian)(dian)纜(lan)長度時，電(dian)(dian)(dian)纜(lan)的(de)(de)雜散電(dian)(dian)(dian)容將影(ying)響設(she)(she)備的(de)(de)正常工(gong)作，為(wei)此設(she)(she)備要輸(shu)出電(dian)(dian)(dian)抗器(qi)，輸(shu)出電(dian)(dian)(dian)抗器(qi)與400噸精密軸承(cheng)壓(ya)裝單柱液壓(ya)機(ji)之問的(de)(de)連(lian)接電(dian)(dian)(dian)纜(lan)長度不得超過10m。

電(dian)動(dong)機(ji)電(dian)纜應獨立于(yu)其(qi)他(ta)電(dian)纜走線，其(qi)最(zui)小距離為500ram。同(tong)時應避免電(dian)動(dong)機(ji)與其(qi)他(ta)電(dian)纜長距離平行走線，這樣才能(neng)減少400噸(dun)精密軸承壓裝單柱液(ye)壓機(ji)輸出電(dian)壓快速變化而產生的(de)電(dian)磁二睡一(yi)如果控(kong)制電(dian)纜和電(dian)源電(dian)纜交叉，應盡砌能(neng)使它(ta)們按(an)90。角交叉。