電纜BV、BLV、VV、VLV、KVV分別代表什么意思?

2021-10-31  來自: http://www.gilrimmer.com/ 瀏覽次數:54

  電線電纜中BV、BLV等符號含義

  這些符號都是電線的一些型號,B系列歸類屬于布電線,所以開頭用B,電壓:300/500V電線按用途分為電磁線和通用絕緣電線。絕緣電線又稱為布電線。

  絕緣電線(布電線)是指包覆絕緣層的電線,包括各種連接線、安裝線。

  V就是PVC聚氯乙烯,也就是(塑料)

  L就是鋁芯的代碼

  T就是銅芯的代碼(一般省略不寫)

  R就是(軟)的意思,要做到軟,就是增加導體根數

  BV銅芯聚氯乙烯絕緣電線

  BLV鋁芯聚氯乙烯絕緣電線

  BVR銅芯聚氯乙烯絕緣軟電線

  以上電線結構:導體+絕緣

  拿2.5mm2為例:

  BV是1根直徑1.78mm和7根0.68兩種

  BLV是1根直徑1.78mm

  BVR是19根直徑0.41mm

  RV銅芯聚氯乙烯絕緣連接軟電線

  它比BVR更軟,還是2.5是49根0.25mm銅絲

  RVV銅芯聚氯乙烯絕緣聚氯乙烯護套連接軟電線

  比RV多了一層塑料護套

  另外:我們最常用的“護套線”

  BVVB銅芯聚氯乙烯絕緣聚氯乙烯護套扁型電纜,就是2根BV線,在+一層白色的護套

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