電纜橋架作為布線工程的一個配套項目，目前尚無專門的規范指導，各生產廠家的規格程式缺乏通用性，因此，設計選型過程應根據弱電各個系統電纜的類型、數量，合理選定適用的橋架。下面山東電纜橋架廠家給您講講在施工中橋架安裝的一般規定吧。

As a supporting project of wiring engineering, there is no special specification guidance for cable tray at present, and the specifications and programs of various manufacturers lack generality. Therefore, the design and selection process should reasonably select the applicable cable tray according to the type and quantity of cables in each weak current system. Next, Shandong cable bridge manufacturer will tell you about the general regulations for bridge installation during construction.

(1)、確定方向：根據建筑平面布置圖，結合空調管線和電氣管線等設置情況、方便維修，以及電纜路由的疏密來確定電纜橋架的佳路由。在室內，盡可能沿建筑物的墻、柱、梁及樓板架設。

(1) Determine the direction: determine the best route of cable tray according to the building layout plan, in combination with the setting of air conditioning pipelines and electrical pipelines, the convenience of maintenance, and the density of cable routes. Indoors, it shall be erected along the walls, columns, beams and floors of the building as far as possible.

(2)、荷載計算：計算電纜橋架主干線縱斷面上單位長度的電纜重量。

(2) Load calculation: calculate the cable weight per unit length on the longitudinal section of the main line of the cable bridge.

(3)、確定橋架的寬度：根據布放電纜條數、電纜直徑及電纜的間距來確定電纜橋架的型號、規格,托臂的長度,支柱的長度、間距、橋架的寬度和層數。

(3) Determine the width of the cable tray: determine the model and specification of the cable tray, the length of the bracket, the length and spacing of the pillars, the width and number of layers of the cable tray according to the number of cables laid, the cable diameter and the cable spacing.

(4)、確定安裝方式：根據場所的設置條件確定橋架的固定方式，選擇懸吊式、直立式、側壁式或是混合式，連接件和緊固件一般是配套供應的，此外，根據橋架結構選擇相應的蓋板。

(4) . determine the installation method: determine the fixing method of the bridge according to the setting conditions of the site, and select the hanging type, vertical type, side wall type or mixed type. The connectors and fasteners are generally supplied together. In addition, select the corresponding cover plate according to the bridge structure.

(5)、繪出電纜橋架平、剖面圖,局部部位還應繪出空間圖，開列材料表。

(5) Plan and section drawings of cable tray shall be drawn, and space drawings and material lists shall be drawn for local parts.

金屬電纜橋架及其支架和引入或引出的金屬電纜導管須接地（PE）或接零（PEN）可靠，且須符合下列規定:

The metal cable tray and its support as well as the incoming or outgoing metal cable conduit shall be reliably grounded (PE) or connected to neutral (pen), and shall meet the following requirements:

金屬電纜橋架及支架全長應不少于2處與接地（PE）或接零（PEN）干線相連接；

The total length of the metal cable tray and support shall be connected to the grounding (PE) or neutral (pen) trunk line at no less than 2 places;

非鍍鋅電纜橋架間連接板的兩端跨接線銅芯接地線，接地線小允許截面積不小于4mm2；

The copper core grounding wire shall be jumper connected at both ends of the connecting plate between non galvanized cable trays, and the allowable cross-sectional area of the small grounding wire shall not be less than 4mm2;

鍍鋅電纜橋架間連接板的兩端不跨接接地線，但連接板兩端不少于2個有防松螺帽或防松墊圈的連接固定螺栓。

The two ends of the connecting plate between galvanized cable trays shall not be bridged with grounding wires, but there shall be at least two connecting fixing bolts with lock nuts or lock washers at both ends of the connecting plate.

電纜敷設嚴禁有絞擰、鎧裝壓扁、護層斷裂和表面嚴重劃傷等缺陷。

The cable laying shall be free from twisting, flattening of armour, breakage of protective layer and serious scratch on the surface.

電纜橋架處如有防火要求的場所，應采取防火隔離措施。

Fire isolation measures shall be taken for places with fire protection requirements at cable trays.

此外要注意，弱電電纜與其它低電壓電纜合用橋架時，應嚴格執行選擇具有外屏蔽層的弱電系統的弱電電纜，避免相互間的干擾。更多注意事項就來我們網站http://www.yeeones.com咨詢了解吧！

In addition, it should be noted that when the weak current cable and other low-voltage cables share the bridge, the weak current cable of the weak current system with external shielding layer should be strictly selected to avoid mutual interference. More precautions come to our website http://www.yeeones.com Consult and understand!