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加鋼絲電纜主芯線截面積的確定
更新時間：2021-10-20 瀏覽次數：590
加鋼絲電纜具有高柔、抗拉、耐磨、耐油、耐彎曲、防紫外線，解決了普通橡套卷筒電纜的橫向縱向開裂、易斷、易老化等一系列性能問題，使用壽命是其3-6倍。應用于動力與控制組合電纜，在有彎曲要求的控制單元中，專為在持續彎曲自由移動且有拉力和強制運動的卷繞系統中。在大多數情況下，電纜可安裝在高溫和有化學腐蝕的環境。而進口混合材質聚氨酯PUR,則能*這類使用條件。
加鋼(gang)絲電(dian)纜主芯線截面積的確定：
1、電(dian)(dian)纜應帶有供保(bao)護(hu)(hu)接地(di)用的(de)足夠截(jie)面的(de)導(dao)體，即(ji)保(bao)證(zheng)保(bao)護(hu)(hu)接地(di)用的(de)電(dian)(dian)纜芯(xin)線(xian)，其(qi)(qi)電(dian)(dian)阻(zu)(zu)不超(chao)(chao)過(guo)規定值(zhi)(zhi)。用于移動(dong)式和(he)手(shou)持式電(dian)(dian)氣設備的(de)電(dian)(dian)纜芯(xin)線(xian)的(de)電(dian)(dian)阻(zu)(zu)值(zhi)(zhi)、作(zuo)保(bao)護(hu)(hu)接地(di)用的(de)電(dian)(dian)纜芯(xin)線(xian)的(de)電(dian)(dian)阻(zu)(zu)值(zhi)(zhi)，都不得超(chao)(chao)過(guo)1Ω；其(qi)(qi)他電(dian)(dian)氣設備用的(de)電(dian)(dian)纜、作(zuo)保(bao)護(hu)(hu)接地(di)用的(de)電(dian)(dian)纜芯(xin)線(xian)電(dian)(dian)阻(zu)(zu)值(zhi)(zhi)，不得超(chao)(chao)過(guo)2Ω。
2、經(jing)常(chang)移(yi)動的(de)電氣(qi)設備使用(yong)的(de)橡套電纜的(de)截面應滿足按機(ji)械強度要求的(de)最小(xiao)截面積。
3、電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)主芯線(xian)的(de)(de)(de)截面(mian)積應(ying)滿足(zu)供(gong)電(dian)(dian)(dian)(dian)(dian)線(xian)路負荷的(de)(de)(de)要求。對(dui)于高壓動力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，應(ying)按(an)經濟電(dian)(dian)(dian)(dian)(dian)流(liu)密度(du)、允(yun)許負荷電(dian)(dian)(dian)(dian)(dian)流(liu)、電(dian)(dian)(dian)(dian)(dian)力網路的(de)(de)(de)允(yun)許電(dian)(dian)(dian)(dian)(dian)壓損(sun)失(shi)(shi)進(jin)行選(xuan)擇(ze)(ze)，并按(an)短路電(dian)(dian)(dian)(dian)(dian)流(liu)校(xiao)驗(yan)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)熱穩定(ding)性，還要求流(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)最小兩相(xiang)短路電(dian)(dian)(dian)(dian)(dian)流(liu)，滿足(zu)過(guo)(guo)流(liu)保(bao)護裝(zhuang)置的(de)(de)(de)靈(ling)敏度(du)要求；對(dui)于低壓動力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，應(ying)按(an)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)允(yun)許負荷電(dian)(dian)(dian)(dian)(dian)流(liu)、允(yun)許電(dian)(dian)(dian)(dian)(dian)壓損(sun)失(shi)(shi)進(jin)行選(xuan)擇(ze)(ze)，并滿足(zu)電(dian)(dian)(dian)(dian)(dian)動機(ji)啟動時對(dui)起動電(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)要求，而且(qie)流(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)最小兩相(xiang)短路電(dian)(dian)(dian)(dian)(dian)流(liu)，應(ying)滿足(zu)過(guo)(guo)流(liu)保(bao)護裝(zhuang)置的(de)(de)(de)靈(ling)敏度(du)要求。
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