黑退鋼管廠家
蘋果(guo)app香(xiang)蕉視(shi)頻:
對(dui)于D型管(guan)(guan)穿布管(guan)(guan)而言,另外(wai)的一(yi)個(ge)要(yao)求就是要(yao)有非常高的阻燃(ran)(ran)性(xing)能。因(yin)為(wei)穿線(xian)(xian)(xian)管(guan)(guan)是用來(lai)穿電線(xian)(xian)(xian)的,如(ru)果(guo)不(bu)阻燃(ran)(ran),可能會引發火災的情況(kuang)。對(dui)于電線(xian)(xian)(xian)管(guan)(guan)的阻燃(ran)(ran),我們可以使用點火試驗來(lai)進行檢查。例如(ru)我們要(yao)取一(yi)段電線(xian)(xian)(xian)管(guan)(guan),然后(hou)用打火機(ji)點燃(ran)(ran),之后(hou)打火機(ji)離開電線(xian)(xian)(xian)管(guan)(guan),這時點燃(ran)(ran)的電線(xian)(xian)(xian)管(guan)(guan)會自(zi)動熄(xi)(xi)滅(mie),也就是體現出(chu)電線(xian)(xian)(xian)管(guan)(guan)的一(yi)個(ge)離火自(zi)熄(xi)(xi)的功能,這就是屬于阻燃(ran)(ran)性(xing)能的電線(xian)(xian)(xian)管(guan)(guan)。另外(wai)還一(yi)種就是根本就點不(bu)著的電線(xian)(xian)(xian)管(guan)(guan),都是符合要(yao)求的。
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