橋架的應用現在十分的廣泛，下面濟南電纜橋架公司就給大家詳細的講解一下橋架內敷設電纜應注意的原則問題，希望對大家有所幫助！

The application of bridge frame is very extensive now. Now Jinan Cable Bridge Frame Company will give you a detailed explanation of the principles of cable laying in the bridge frame, hoping to be helpful to you all!

1. 橋架電纜垂直敷設，一般宜自上而下敷設，在土建沒拆吊車前，用吊車將電纜吊樓層頂部;敷設前選好位置，架好電纜盤，電纜向下彎曲部位應用滑輪支撐電纜，在電纜軸和盤處以及樓層處應設制動和防滑措施;自下而上敷設時，低層小截面電纜可用滑輪和大繩人力牽引敷設，高層大截面電纜應用機械牽引敷設，敷設應安排列圖進行，以免交叉，排列應整齊，間距應均勻，大于45°傾斜的電纜每隔2m處設固定點;垂直敷設于橋架內的電纜，每敷設一根應固定一根，全塑電纜每1m應固定一次，其他電纜固定點為1.5m，控制電纜固定點應為1m。

1. Vertical laying of bridge cables should generally be laid from top to bottom. Before construction, the cables should be lifted to the top of the floor by crane; before laying, the position should be selected, the cable tray should be erected, the pulley cable should be used in the downward bending part of the cable, and braking and anti-skid measures should be laid from bottom to top at the cable axle, tray and floor. When laying low-rise and small-section cables, pulleys and large ropes can be used for manpower traction. High-rise and large-section cables should be laid by mechanical traction. Laying should be arranged in a chart so as to avoid crossing. Arrangement should be neat and spacing should be uniform. Cables with inclination greater than 45 degrees should be fixed at 2 m intervals. Cables laid vertically in the bridge frame should be laid with one cable. One cable should be fixed, the fixed point of all plastic cable should be fixed once per meter, the fixed point of other cable should be 1.5 m, and the fixed point of control cable should be 1 m.

2. 電纜穿過防火墻及防火樓板時，應盡量水平或垂直敷設，應先墊上一層60mm的泡沫石棉氈或礦棉，放一層電纜，再放一層60mm的泡沫石棉氈或礦棉，再放一層電纜，依次放置;電纜敷設完成后，用泡沫石棉氈或礦棉把洞堵嚴，有些小洞可用電纜防火堵料堵塞。墻洞兩側應用不小于1.5mm厚的鋼板將泡沫石棉氈或礦棉保護起來。在防火墻兩側1m以內厚度達到0.5mm~1mm，對鎧裝油浸紙絕緣電纜，先包一層玻璃絲布，再涂防火涂料厚度0.5mm~1mm或直接涂1~1.5mm防火涂料，作法見圖12.4.4(3)。也可用膨脹型防火材料，按產品技術要求封堵。

2. when cables pass through firewalls and fire-resistant floors, they should be laid as horizontal or vertical as possible. First, lay a layer of 60mm foam asbestos felt or mineral wool, put a layer of cable, then put a layer of 60mm foam asbestos felt or mineral wool, then put a layer of cable in order. After the cable is completed, use foam asbestos felt or mineral wool to block up the hole. Some small holes can be blocked by fire-proof plugging materials for cables. The two sides of the wall hole shall be protected by foam asbestos felt or mineral wool, which is not less than 1.5mm thick. For armored oil-immersed paper insulated cables, a layer of glass silk cloth is coated first, then the thickness of fire retardant coatings is 0.5mm~1mm or the thickness of fire retardant coatings is 1~1.5mm directly, as shown in Figure 12.4.4 (3). It can also be blocked with expansive fire-proof materials according to the technical requirements of the products.

3. 橋架內電纜水平敷設:應將電纜安排列圖敷設，單層擺放，排列整齊，不得交叉，拐彎處應以大截面電纜彎曲半徑為準。不同等級電壓的電纜應分層敷設，高壓電纜應敷設在上層。同等電壓的電纜沿橋架敷設時，電纜水平凈距不得小于35mm。首層兩端，轉彎處兩側及每隔5~10m應固定一次。

3. Horizontal laying of cables in bridge frame: cables should be laid out in laying plans, single-layer laying, neatly arranged and not crossed. The bending radius of large cross-section cables should be taken as the criterion. Cables of different voltage levels should be layed in layers, and high voltage cables should be laid in the upper layers. When the cable with the same voltage is laid along the bridge, the horizontal net distance of the cable shall not be less than 35 mm. The two ends of the first floor, the two sides of the turning point and every 5-10 m should be fixed once.

今天就暫且和大家聊到這里，希望這篇由濟南電纜橋架的小編整理的知識可以幫助到您，如果您對此還有疑問，詳情請咨詢我們的。http://www.zkhtkj.cn

Today I'm going to talk to you for a moment. I hope this knowledge of the arrangement of Jinan cable bridge can help you. If you have any questions about this, please consult our official for details. Http://www.zkhtkj.cn