產(chǎn)品詳情
型號(hào)
:張家口2098-DSD-020-DN羅克韋爾伺服驅(qū)動(dòng)器廠家
Allen Bradley 1398-DDM-009-DN
Allen Bradley 1398-DDM-005X-NV
Allen Bradley 1398-DDM-005X-DN
Allen Bradley 1398-DDM-009X
Allen Bradley 1398-DDM-019-DN
Allen Bradley 1398-DDM-009X-DN
Allen Bradley 1398-DDM-005X
Allen Bradley 1398-DDM-005-DN
Allen Bradley 1398-DDM-005
Allen Bradley 1398-DDM-075X
Allen Bradley 1398-DDM-075
Allen Bradley 1398-DDM-010X
Allen Bradley 1398-DDM-010
Allen Bradley 1398-DDM-150
Allen Bradley 1398-DDM-020X
Allen Bradley 1398-DDM-020
Allen Bradley 1398-DDM-030X
Allen Bradley 1398-DDM-030
Allen Bradley 1398-DDM-019X-DN
Allen Bradley 1398-DDM-019X
Allen Bradley 1398-DDM-150X
Allen Bradley 1398-DDM-019
Allen Bradley 1398-DDM-009
:張家口2098-DSD-020-DN羅克韋爾伺服驅(qū)動(dòng)器廠家主要用于電纜有長(zhǎng)期穩(wěn)定的負(fù)荷,經(jīng)濟(jì)比較,可以用經(jīng)濟(jì)電流密度法來(lái)選擇電纜的截面。一般按照經(jīng)濟(jì)電流密度法選擇出來(lái)的電纜截面比用允許溫升選擇出來(lái)的電纜截面大1到2級(jí)。對(duì)于一些長(zhǎng)期不用的回路,不宜按照經(jīng)濟(jì)電流密度選擇截面。如何用經(jīng)濟(jì)電流密度法來(lái)選擇電力電纜的截面按照經(jīng)濟(jì)電流密度法計(jì)算電力電纜截面的公式為Aec=Ic/Jec式中,Aec為導(dǎo)體經(jīng)濟(jì)截面(mm2)Ic為線路的計(jì)算電流(A),Jec為經(jīng)濟(jì)電流密度(A/mm2)。