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本產品(pin)適用(yong)于(yu)額定電(dian)(dian)(dian)壓500V及以下對于(yu)防干擾性要求較高的電(dian)(dian)(dian)子計算機和自動(dong)化(hua)連接用(yong)電(dian)(dian)(dian)纜。電(dian)(dian)(dian)纜地線(xian)芯絕緣采用(yong)具有(you)抗氧化(hua)性能的K型B類(lei)低密(mi)度(du)(du)聚乙烯(xi)。敷設時環境溫(wen)度(du)(du)不(bu)(bu)低于(yu):固(gu)(gu)定敷設-40℃,非固(gu)(gu)定敷設-15℃。最小彎曲半徑：無鎧裝層(ceng)應(ying)不(bu)(bu)小于(yu)電(dian)(dian)(dian)纜外(wai)(wai)徑的6倍，帶鎧裝層(ceng)的電(dian)(dian)(dian)纜應(ying)不(bu)(bu)小于(yu)電(dian)(dian)(dian)纜外(wai)(wai)徑計算機電(dian)(dian)(dian)纜計算機電(dian)(dian)(dian)纜的12倍。在20℃時用(yong)直流500V電(dian)(dian)(dian)壓試驗穩定充電(dian)(dian)(dian)1min后絕緣電(dian)(dian)(dian)阻應(ying)不(bu)(bu)小于(yu)2500MΩ·Km。

各對絞屏蔽之間以及(ji)對絞屏蔽與總(zong)屏蔽之間應不(bu)(bu)斷路(lu)。電(dian)纜(lan)的(de)線(xian)芯和線(xian)芯之間以及(ji)屏蔽之間應經受50HZ，交流2000V電(dian)壓(ya)試驗5min不(bu)(bu)擊穿。聚乙(yi)烯的(de)絕緣電(dian)阻高，耐電(dian)壓(ya)好，介電(dian)系數小和介質損耗溫(wen)度和變頻(pin)率(lv)的(de)影響(xiang)也(ye)小，不(bu)(bu)但能(neng)滿足(zu)傳(chuan)輸性(xing)能(neng)的(de)要求，而且能(neng)確(que)保(bao)電(dian)纜(lan)的(de)使用壽(shou)命(ming)。

為了減少(shao)回路間(jian)(jian)的相互(hu)串擾(rao)和外部干擾(rao)，電(dian)(dian)纜(lan)采用(yong)屏(ping)(ping)(ping)蔽(bi)(bi)結構。電(dian)(dian)纜(lan)的屏(ping)(ping)(ping)蔽(bi)(bi)要(yao)求是(shi)根據(ju)不同場合分別采用(yong)：對(dui)(dui)絞組(zu)合屏(ping)(ping)(ping)蔽(bi)(bi)、對(dui)(dui)絞組(zu)成(cheng)電(dian)(dian)纜(lan)的總(zong)(zong)屏(ping)(ping)(ping)蔽(bi)(bi)、對(dui)(dui)絞組(zu)合屏(ping)(ping)(ping)蔽(bi)(bi)后總(zong)(zong)屏(ping)(ping)(ping)蔽(bi)(bi)等方法。屏(ping)(ping)(ping)蔽(bi)(bi)材(cai)料有圓銅(tong)線，銅(tong)帶(dai)、鋁帶(dai)/塑料復(fu)合帶(dai)三種。屏(ping)(ping)(ping)蔽(bi)(bi)對(dui)(dui)與屏(ping)(ping)(ping)蔽(bi)(bi)對(dui)(dui)具有較好的絕緣性(xing)能(neng)，電(dian)(dian)纜(lan)在使(shi)用(yong)中若屏(ping)(ping)(ping)蔽(bi)(bi)對(dui)(dui)屏(ping)(ping)(ping)蔽(bi)(bi)對(dui)(dui)之間(jian)(jian)出(chu)現電(dian)(dian)位(wei)差時，不會影(ying)響信號的傳(chuan)輸(shu)質量。