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    • WDZAN-YJY耐火電纜

      WDZAN-YJY耐火電纜

      WDZA-YJY電纜WDZA-YJY耐火電纜使用特性: 1、電纜導體的最高額定溫度為90℃。 2、短路時(最長持續時間不超過5秒),電纜導體的最高溫度不超過250℃。 3、敷設電纜時的環境溫度應不低于0℃。敷設時最小彎曲半徑應不小于電纜外經的8倍(外經40mm及以下)和12倍(外經40mm以上)。

      WDZAN-YJY耐火電纜 WDZA-YJY電纜


      WDZA-YJY電纜WDZA-YJY耐火電纜適用范圍:

      產品適用于高層建筑、地鐵、石油平臺、計算機中心、核電站、醫院、艦船對電線電纜阻燃、無鹵低煙性能要求的不斷提高。無鹵低煙阻燃電力電纜具有優良的機械物理性能、電性能、阻燃性能,而且具有不含鹵素,發煙量低等特點。適用于消防安全特別要求的固定敷設輸配電線路的場合。電纜產品性能除符合GB/T12706-2002標準外,燃燒性能符合IEC332、IEC 754及IEC1034標準所規定的要求。


      二、WDZA-YJY電纜WDZA-YJY耐火電纜使用特性:

      1、電纜導體的最高額定溫度為90℃。

      2、短路時(最長持續時間不超過5秒),電纜導體的最高溫度不超過250℃。

      3、敷設電纜時的環境溫度應不低于0℃。敷設時最小彎曲半徑應不小于電纜外經的8倍(外經40mm及以下)和12倍(外經40mm以上)。


      三、WDZA-YJY電纜WDZA-YJY耐火電纜主要性能


      1、 低煙無鹵阻燃型

      阻燃性能應能通過GB18380的成束電纜燃燒試驗。試驗后電纜燒焦或受影響部分達到的高度應不超過火焰作用點以上2.5m,或單根垂直燃燒試驗。

      鹵酸氣體釋放量試驗應能通過GB/T17650.1-1998鹵酸氣體總量測定∠5mg/g以及GB/T17650.2-19981用測量PH值和電導率來測定氣體的酸度(1L水中PH≥4.3 電導率值應不超過10us/mm)

      煙密度試驗應能通過GB/T17651.2-1998電纜或光纖在特點條件下燃燒的煙密度測定(透光率的較小值≥60%)

      導體直流電阻符合GB/T3956的規定

      工頻耐壓試驗:電力電纜應經受3500V,5min不擊穿??刂齐娎|應經受3000V,5min不擊穿。

      應經受-15℃的低溫卷繞試驗或低溫沖擊試驗,試驗后試樣表面應無目力可見裂紋。


      2、 低煙無鹵耐火型

      除滿足阻燃低煙無鹵型的性能以外,其耐火試驗應能通過GB/T19216-2003在火焰條件下電纜或光纖的線路完整性試驗中的規定,在750℃,90min燃燒,2A熔絲不容斷

      (此內容由www.lfsz520.com提供)
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