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　　高強度封閉(bi)式母(mu)(mu)(mu)(mu)線(xian)(xian)槽(cao)。其工藝制(zhi)造不受板材限(xian)制(zhi)，外殼做(zuo)成瓦溝(gou)形式，使(shi)(shi)母(mu)(mu)(mu)(mu)線(xian)(xian)機(ji)械強度增加，母(mu)(mu)(mu)(mu)線(xian)(xian)水平段可生(sheng)產至13m長。由于外殼做(zuo)成瓦溝(gou)形式，坑溝(gou)位置有(you)意將母(mu)(mu)(mu)(mu)線(xian)(xian)分隔固定(ding)，母(mu)(mu)(mu)(mu)線(xian)(xian)之間有(you)18mm的間距，線(xian)(xian)間通風良好，使(shi)(shi)母(mu)(mu)(mu)(mu)線(xian)(xian)槽(cao)的防潮和散熱功能(neng)有(you)明顯(xian)的提(ti)(ti)高，比(bi)較適應(ying)南方(fang)氣候;由于線(xian)(xian)間有(you)一定(ding)的空(kong)隙，使(shi)(shi)導線(xian)(xian)的溫升下降，這樣就提(ti)(ti)高了(le)過載能(neng)力，并(bing)減(jian)少了(le)磁振蕩噪聲(sheng)。但它(ta)產生(sheng)的雜(za)散電流及感抗(kang)要比(bi)密(mi)集型(xing)母(mu)(mu)(mu)(mu)線(xian)(xian)槽(cao)大得多(duo)，因此在同(tong)規格比(bi)較時，它(ta)的導電排截面必須比(bi)密(mi)集絕緣插(cha)接母(mu)(mu)(mu)(mu)線(xian)(xian)槽(cao)大。