對于D型管(guan)(guan)(guan)穿布管(guan)(guan)(guan)而言，另外的(de)(de)(de)一個要(yao)(yao)求就(jiu)(jiu)是(shi)要(yao)(yao)有非常高的(de)(de)(de)阻燃(ran)(ran)性能。因為(wei)穿線(xian)管(guan)(guan)(guan)是(shi)用(yong)來穿電(dian)(dian)線(xian)的(de)(de)(de)，如果不(bu)阻燃(ran)(ran)，可能會引發(fa)火(huo)(huo)(huo)災的(de)(de)(de)情況。對于電(dian)(dian)線(xian)管(guan)(guan)(guan)的(de)(de)(de)阻燃(ran)(ran)，我們(men)可以使(shi)用(yong)點(dian)火(huo)(huo)(huo)試驗來進行檢查(cha)。例(li)如我們(men)要(yao)(yao)取一段電(dian)(dian)線(xian)管(guan)(guan)(guan)，然后(hou)用(yong)打(da)火(huo)(huo)(huo)機點(dian)燃(ran)(ran)，之后(hou)打(da)火(huo)(huo)(huo)機離(li)開(kai)電(dian)(dian)線(xian)管(guan)(guan)(guan)，這(zhe)時點(dian)燃(ran)(ran)的(de)(de)(de)電(dian)(dian)線(xian)管(guan)(guan)(guan)會自(zi)動(dong)熄滅(mie)，也就(jiu)(jiu)是(shi)體現(xian)出電(dian)(dian)線(xian)管(guan)(guan)(guan)的(de)(de)(de)一個離(li)火(huo)(huo)(huo)自(zi)熄的(de)(de)(de)功能，這(zhe)就(jiu)(jiu)是(shi)屬于阻燃(ran)(ran)性能的(de)(de)(de)電(dian)(dian)線(xian)管(guan)(guan)(guan)。另外還一種就(jiu)(jiu)是(shi)根本就(jiu)(jiu)點(dian)不(bu)著的(de)(de)(de)電(dian)(dian)線(xian)管(guan)(guan)(guan)，都是(shi)符合要(yao)(yao)求的(de)(de)(de)。