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    已經知道電器的功率怎么選擇電線電纜的大小

    廣州(zhou)慶豐電(dian)(dian)線電(dian)(dian)纜(lan)告訴您:

    計(ji)算(suan)(suan)出設(she)(she)備(bei)的(de)(de)(de)額定(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)和啟動電(dian)(dian)(dian)(dian)(dian)流(liu);2查電(dian)(dian)(dian)(dian)(dian)線(xian)或(huo)(huo)(huo)者(zhe)電(dian)(dian)(dian)(dian)(dian)纜載(zai)流(liu)量表,1根據(ju)設(she)(she)備(bei)的(de)(de)(de)功(gong)率及功(gong)率因數。選(xuan)(xuan)擇合(he)適(shi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)線(xian)或(huo)(huo)(huo)者(zhe)電(dian)(dian)(dian)(dian)(dian)纜,并(bing)得到(dao)電(dian)(dian)(dian)(dian)(dian)線(xian)或(huo)(huo)(huo)者(zhe)電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)(de)阻抗(kang)值;3根據(ju)設(she)(she)備(bei)啟動電(dian)(dian)(dian)(dian)(dian)流(liu),計(ji)算(suan)(suan)電(dian)(dian)(dian)(dian)(dian)線(xian)或(huo)(huo)(huo)者(zhe)電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)(de)壓(ya)(ya)降,如(ru)果(guo)設(she)(she)備(bei)啟動時(shi)(shi)電(dian)(dian)(dian)(dian)(dian)機(ji)端電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)小于(yu)75%額定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),則換大(da)一級(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)線(xian)或(huo)(huo)(huo)者(zhe)電(dian)(dian)(dian)(dian)(dian)纜,重新進行計(ji)算(suan)(suan)。合(he)格(ge)為(wei)止;4如(ru)果(guo)是(shi)高(gao)(gao)壓(ya)(ya)設(she)(she)備(bei),應當計(ji)算(suan)(suan)高(gao)(gao)壓(ya)(ya)母(mu)線(xian)上(shang)的(de)(de)(de)短(duan)路電(dian)(dian)(dian)(dian)(dian)流(liu)值,然(ran)后根據(ju)短(duan)路電(dian)(dian)(dian)(dian)(dian)流(liu)值機(ji)主維護(hu)動作時(shi)(shi)間,來(lai)計(ji)算(suan)(suan)電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)(de)熱穩定(ding)截面。保證選(xuan)(xuan)擇的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)纜截面大(da)于(yu)或(huo)(huo)(huo)等(deng)于(yu)這(zhe)個計(ji)算(suan)(suan)值

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