SYWV銅(tong)芯(xin)物理(li)發泡聚乙(yi)烯(xi)絕緣聚氯乙(yi)烯(xi)護套同軸電(dian)纜有(you)(you)線電(dian)視(shi)系統電(dian)纜,俗稱(cheng)有(you)(you)線電(dian)視(shi)線,TV線，一般用于家用有(you)(you)線電(dian)視(shi)的(de)(de)連接信號線，是(shi)同軸電(dian)纜的(de)(de)一種，適(shi)用于有(you)(you)線電(dian)視(shi)工程，有(you)(you)線電(dian)視(shi)系統和HFC光纖(xian)-同軸電(dian)纜網(wang)傳輸數據(ju)、語音(yin)和圖像信號。一般有(you)(you)75歐姆(mu)和50歐姆(mu)兩個阻抗,還可以按(an)照粗細分為-5,-7,-9等型號.

SYWV銅芯物理發泡聚乙(yi)烯絕緣聚氯乙(yi)烯護套同軸(zhou)電(dian)(dian)(dian)纜有(you)線(xian)(xian)(xian)電(dian)(dian)(dian)視系統電(dian)(dian)(dian)纜,俗(su)稱(cheng)有(you)線(xian)(xian)(xian)電(dian)(dian)(dian)視線(xian)(xian)(xian),TV線(xian)(xian)(xian)，一般用(yong)于(yu)家用(yong)有(you)線(xian)(xian)(xian)電(dian)(dian)(dian)視的連接信(xin)號線(xian)(xian)(xian)，是同軸(zhou)電(dian)(dian)(dian)纜的一種，適用(yong)于(yu)有(you)線(xian)(xian)(xian)電(dian)(dian)(dian)視工程(cheng)，有(you)線(xian)(xian)(xian)電(dian)(dian)(dian)視系統和(he)HFC光纖-同軸(zhou)電(dian)(dian)(dian)纜網傳輸數據(ju)、語音和(he)圖像信(xin)號。一般有(you)75歐姆(mu)和(he)50歐姆(mu)兩(liang)個(ge)阻(zu)抗,還可以(yi)按(an)照(zhao)粗(cu)細分為-5,-7,-9等型號.

SYWV（Y）-75型聚(ju)乙(yi)烯物理高發(fa)泡電纜(lan)是一種具有(you)很(hen)低(di)損耗的(de)電纜(lan)，它(ta)是通過氣體注入使介(jie)(jie)質(zhi)發(fa)泡，選擇適當的(de)工藝參數(shu)使得形成(cheng)很(hen)小的(de)互(hu)(hu)相(xiang)封閉的(de)氣孔，這種介(jie)(jie)質(zhi)不易老化，不易受潮(chao)。電纜(lan)內(nei)導(dao)體有(you)純銅(tong)線(xian)、銅(tong)包鋼，外(wai)導(dao)體是鋁塑復合帶加鍍錫銅(tong)線(xian)、裸(luo)銅(tong)線(xian)、鋁鎂合金線(xian)編織，介(jie)(jie)質(zhi)和(he)內(nei)導(dao)體相(xiang)互(hu)(hu)牢(lao)固(gu)結合，當溫度變化或(huo)電纜(lan)受拉壓時，介(jie)(jie)質(zhi)與導(dao)體之間不會發(fa)生相(xiang)對移動。SYWV（Y）-75型電纜(lan)的(de)衰減比同(tong)尺(chi)寸的(de)其它(ta)射頻(pin)電纜(lan)小，它(ta)用于CATV閉路電視(shi)系統、傳(chuan)(chuan)輸(shu)高頻(pin)和(he)超高頻(pin)信號，亦(yi)可(ke)用于數(shu)據傳(chuan)(chuan)輸(shu)網絡，進行數(shu)據傳(chuan)(chuan)輸(shu)

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