船用電力電纜,DA、SA型的區別

  DA是(shi)單(dan)根垂(chui)直燃(ran)燒(shao)實(shi)驗(yan)(yan)(yan)(yan)，SA是(shi)成(cheng)束(shu)電纜燃(ran)燒(shao)實(shi)驗(yan)(yan)(yan)(yan)，其燃(ran)燒(shao)實(shi)驗(yan)(yan)(yan)(yan)方(fang)法不同，DA型的實(shi)驗(yan)(yan)(yan)(yan)裝置較簡單(dan)，SA的較復雜，都是(shi)檢驗(yan)(yan)(yan)(yan)電纜燃(ran)燒(shao)性能的表示(shi)方(fang)法，成(cheng)束(shu)電纜燃(ran)燒(shao)實(shi)驗(yan)(yan)(yan)(yan)較單(dan)根垂(chui)直燃(ran)燒(shao)實(shi)驗(yan)(yan)(yan)(yan)更嚴格，對電纜的不延燃(ran)性能也較高(gao)，因(yin)此SA型電纜較DA型電纜更好。但(dan)兩(liang)者都是(shi)A型的，也就是(shi)燃(ran)燒(shao)產生的氣體(ti)有(you)毒、有(you)酸、有(you)煙。現在的船用電纜正朝著(zhu)DC和SC型方(fang)向發展(zhan)，它無鹵，低毒，環保性能更高(gao).