阻燃電纜,是指在規定試驗條件下,試樣被燃燒,在撤去試驗火源后,火焰的蔓延僅在限定范圍內,殘焰或殘灼在限定時間內能自行熄滅的電纜。阻燃電纜的特點是延緩火焰沿著電纜蔓延使火災不致擴大.由于其成本較低,因此是防火電纜中大量采用的電纜品種,無論是單根線纜還是成束敷設的條件下,電纜被燃燒時能將火焰的蔓延控制在一定范圍內,因此可以避免因電纜著火延燃而造成的重大災害,從而提高電纜線路的防火水平。阻燃電纜型號見相關內容介紹。
阻燃(ran)型控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)其電(dian)(dian)(dian)(dian)氣性(xing)能(neng)符合GB9330—88《塑(su)料(liao)絕緣(yuan)控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)》,阻燃(ran)性(xing)能(neng)根據要求可符合GB/T1 8380.3《成束(shu)電(dian)(dian)(dian)(dian)線或(huo)電(dian)(dian)(dian)(dian)纜(lan)的燃(ran)燒(shao)試(shi)驗(yan)方法(fa)》中(zhong)的A、B或(huo)C類,耐(nai)火性(xing)能(neng)應(ying)符合GB/T19216—2003《在火焰條件(jian)下電(dian)(dian)(dian)(dian)纜(lan)或(huo)光(guang)纜(lan)的線路完整性(xing)試(shi)驗(yan)》的規(gui)定(ding)。