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電纜橋架的選型設計

發布時間:2017-12-27

       1、 確定環境條件環境條件一般有三種:腐蝕環境、正常環境、特殊環境。

  2、 根據多數電纜走向,在室內可沿著、柱、梁、樓板走,在室外盡可能沿工藝管道走。

  3、 計算荷重計算在電纜橋架走向斷面上的單位長度電纜的重量q及總荷載G  G總=n1q1+n2q2……nnqn?式中:q1·q2·q3……qn為每根電纜單位重量(kg/m)n1·n2·n3……nn為相同電纜根數  G總<G允(電纜僑架的允許荷載參照荷載曲線圖表)

  4、 選擇橋架根據電纜荷載及橋架安裝處的環境,以橋架的載荷曲線為依據,來確定橋架的類型和規格及立柱的間距、托臂的長度、橋架的層次,立柱的長度等。

  5、 根據電纜走向及安裝的環境確定橋架的固定方式;懸掛式、直立式,(這兩種形式均可采用單側固定或雙側固定)、壁側式等。

  6、 各種電纜在西安電纜橋架上的層次安排與層間距離。

上一篇:電纜橋架要怎樣安裝才算合格

下一篇:損失超過千萬元 通信電纜被盜案持續高發

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