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RDP3-J3型三相恒功率電熱帶

三(san)相(xiang)恒(heng)(heng)功率電熱(re)(re)(re)帶(dai)(dai)(dai)和單相(xiang)恒(heng)(heng)功率電熱(re)(re)(re)帶(dai)(dai)(dai)的原理(li)基(ji)本相(xiang)同(tong),不同(tong)之處是(shi)單相(xiang)帶(dai)(dai)(dai)采用(yong)(yong)單相(xiang)供電,三(san)相(xiang)帶(dai)(dai)(dai)采用(yong)(yong)三(san)相(xiang)三(san)角形(xing)供電。三(san)相(xiang)帶(dai)(dai)(dai)除有單相(xiang)電熱(re)(re)(re)帶(dai)(dai)(dai)的特點(dian)外(wai),特別適用(yong)(yong)于長距離、大口徑管道的伴熱(re)(re)(re)和保溫。


1、工作原理:

三根平行絕(jue)緣銅絞線為電(dian)(dian)源(yuan)母(mu)線,在內護(hu)套絕(jue)緣層外(wai)纏繞電(dian)(dian)熱(re)絲(si),并(bing)(bing)將該電(dian)(dian)熱(re)絲(si)每隔一(yi)定距(ju)離(即“發熱(re)節長”)分別(bie)依次與(yu)電(dian)(dian)源(yuan)母(mu)線AB-BC-CA-AB……反復循環(huan)連接,在每三相間(jian)形甩邊連續并(bing)(bing)聯電(dian)(dian)阻。當線母(mu)通以三相電(dian)(dian)后,各(ge)并(bing)(bing)聯電(dian)(dian)阻同時發熱(re),因而形成一(yi)條(tiao)連續三相供(gong)電(dian)(dian)的加熱(re)帶。


2、產品規格及主要技術指標:

常態絕(jue)緣電阻:≥50mΩ/百(bai)米

介電(dian)強度:2500V  50Hz/min

絕緣材料:F46

電熱帶最高耐溫:205℃

防爆標志:eIIT3

防爆(bao)合格證(zheng)證(zheng)號:289202

供貨長(chang)度(du):最長(chang)500m,最短50m