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當前位置:首頁 >> 新聞動態 >> 行業新聞 >> 光纜制造過程對光纖采

光纜制造過程對光纖采取的保護措施

發布時間:2017/4/21 丨 文章來源:admin 丨 瀏覽次數:2809

光纜制造過程中需要對光纖采取的強化和保護措施主要包括:

  1.抗張力強度

        采用牽引方式通過管道鋪設光纜時必須考慮光纜的抗張力強度。當光纜吊裝,在豎直的管道中、懸掛在兩個電線桿之間或鋪設在海底的時候,抗張力加強件必須能夠支撐光纜本身的重量。在兩個電線桿之間懸掛的架空光纜還必須承受大雪和大風的考驗。

  2.抗擠壓能力

       有時候光纜可能會遭受來自側面的很大沖擊力,這種沖擊力可能壓碎光纖。有些光纜還必須能抗住大型運輸工具的碾壓。

  3.過度彎曲保護

       尖銳的彎曲會帶來兩個問題,一是彎曲處會產生輻射損耗,二是光纖有可能受到損傷。好的光纜要有足夠的強度,能夠防止過度的彎曲;同時,還要有一定的柔韌性,以確保易于運輸和鋪設。

  4.損傷保護

       玻璃光纖在受到損傷的情況下性能會急劇劣化。由損傷引起的細微裂紋會沿著玻璃延伸并使損耗顯著增加。

  5.振動隔離

       振動會導致光纖損耗的增加。在設計光纜時,給光纖加上護墊可以限制過度的運動。

  6.防潮和防化學侵蝕

       玻璃光纖如果長時間暴露在濕氣和化學物質之中,性能會劣化。適當的光纜結構能夠保護光纖,使之不接觸這些物質。除了應該具有很高的機械強度和化學防護性能以外,好的光纜還應該具有重量輕、尺寸小、較柔韌、防火、防動物嘶咬以及對溫度不敏感等性能。有多種形式的光纜結構設計,以適應不同的應用。


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