高強(qiang)度(du)封閉式母(mu)(mu)線(xian)(xian)槽(cao)(cao)。其工藝制造(zao)不受板材(cai)限制,外殼做成瓦溝形(xing)式,使母(mu)(mu)線(xian)(xian)機械強(qiang)度(du)增加,母(mu)(mu)線(xian)(xian)水平段可生(sheng)產至13m長。由(you)于外殼做成瓦溝形(xing)式,坑溝位置(zhi)有(you)意將母(mu)(mu)線(xian)(xian)分隔固定,母(mu)(mu)線(xian)(xian)之(zhi)間(jian)(jian)有(you)18mm的(de)間(jian)(jian)距,線(xian)(xian)間(jian)(jian)通風良好,使母(mu)(mu)線(xian)(xian)槽(cao)(cao)的(de)防潮和散熱功能有(you)明(ming)顯的(de)提高,比較(jiao)適應南方氣候;由(you)于線(xian)(xian)間(jian)(jian)有(you)一定的(de)空隙,使導(dao)線(xian)(xian)的(de)溫(wen)升下降,這(zhe)樣就提高了過載能力,并減(jian)少(shao)了磁振蕩噪聲。但它產生(sheng)的(de)雜散電流及感(gan)抗(kang)要比密集型母(mu)(mu)線(xian)(xian)槽(cao)(cao)大得多,因此(ci)在同(tong)規(gui)格比較(jiao)時,它的(de)導(dao)電排截面必須(xu)比密集絕(jue)緣(yuan)插(cha)接母(mu)(mu)線(xian)(xian)槽(cao)(cao)大。