Select cable tray according to cable load and environment cable tray installation, load curve of cable tray, determine cable tray type and specification, column spacing, arm length, cable tray, column length, etc.

　　當電纜橋架固定方式為懸索式，支撐臂為單側多層安裝時，為了平衡垂直噴射的應力，應選擇材料加載方式敷設電纜橋架。

　　In order to balance the stress of vertical spray, the material loading method should be selected to lay the cable bridge when the cable bridge is fixed in the form of suspension and the support arm is installed in one side and multiple layers.

　　大跨度電纜敷設，可選用大跨度電纜橋架。

　　For long-span cable laying, long-span cable tray can be selected.

　　當電纜橋架通過易受外部機械損傷的區(qū)域和暴露在陽光下的區(qū)域時，應選擇防護罩板。當電纜槽或桁架式梯子需要切換支路時，可采用各種彎通連接方式。

　　When the cable tray passes through the area vulnerable to external mechanical damage and the area exposed to sunlight, the protective cover plate shall be selected. When the cable trough or truss ladder needs to switch the branch, it can adopt various bending connection methods.

　　所選電纜橋架的支撐間距應小于允許的支撐間距。寬度要留有一定的空間，以便以后添加電纜。

　　The support spacing of the selected cable tray shall be less than the allowable support spacing. The width should allow some space for adding cables later.

　　電纜橋架的防腐措施有:噴塑、鍍鋅鈍化、電鍍鋅(適用于輕防腐部位)、熱浸鍍鋅、熱噴鋅(適用于重防腐部位)、鍍鋅鎳合金等。熱鍍鋅電纜橋架厚度增加0.5mm以上。

　　The anti-corrosion measures for cable tray include: plastic spraying, galvanizing passivation, electro galvanizing (applicable to light anti-corrosion parts), hot-dip galvanizing, hot-dip galvanizing (applicable to heavy anti-corrosion parts), galvanized nickel alloy, etc. The thickness of hot-dip galvanized cable tray is increased by more than 0.5mm.

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