大跨距電纜橋架通常是指一米或四米以上，并且橋梁的厚度是根據標準來實現的。由于其屏蔽干擾和控制電纜上的重負荷而適用于鋪設計算機電纜，通信電纜和其他高靈敏度系統控制電纜等。山東電纜橋架廠家認為，選擇大跨距橋架時應注意8個要素！

Long span cable tray usually refers to one meter or more, and the thickness of the bridge is realized according to the standard. It is suitable for laying computer cables, communication cables and other high sensitivity system control cables due to its shielding interference and heavy load on control cables. Shandong cable tray manufacturer believes that 8 elements should be paid attention to when selecting long-span cable tray!

1）在腐蝕性環境中使用時，電纜橋架，線槽及其支撐和吊架應使用耐腐蝕的硬質材料制成，或者應采用防腐蝕處理。防腐處理方法應符合工程環境和耐久性要求。

1) When used in corrosive environment, cable tray, trunking and its supports and hangers shall be made of corrosion-resistant hard materials, or anti-corrosion treatment shall be adopted. The anti-corrosion treatment method shall meet the requirements of engineering environment and durability.

2）對于具有防火要求的部分的電纜橋架，可以在大跨距電纜橋架中添加耐火或不易燃的板，網和其他材料以形成封閉或半封閉的結構，并用于橋梁和支撐物機架表面應涂防火涂料，其總體耐火性應符合相關法規或標準的要求。

2) For the cable tray with fire protection requirements, fire-resistant or non flammable plates, nets and other materials can be added to the long-span cable tray to form a closed or semi closed structure, and the surface of the bridge and support frame shall be coated with fire-resistant paint, and its overall fire resistance shall meet the requirements of relevant regulations or standards.

3）鋁電纜橋架不應在對工程防火要求較高的地方使用。

3) Aluminum cable tray shall not be used in places with high fire protection requirements for the project.

4）電纜梯架和橋架的寬度和高度的選擇應滿足填充率的要求。通常，電纜梯架和橋架的填充率對于電力電纜可以為40％-50％，對于控制電纜可以為50％?70。％，并且應保留項目開發利潤的10％-25％。

4) The width and height of cable ladder and tray shall meet the requirements of filling rate. Generally, the filling rate of cable ladders and trays can be 40% - 50% for power cables and 50% for control cables? 70。％， And 10% - 25% of the project development profit shall be retained.

5）選擇電纜橋架的載荷水平時，電纜橋架的工作均勻載荷不應大于所選電纜橋架載荷水平的額定均勻載荷。如果電纜橋架的支架和吊架的實際跨度不等于2m，則均勻的工作負荷應滿足要求。

5) When selecting the load level of the cable tray, the working uniform load of the cable tray shall not be greater than the rated uniform load of the selected cable tray load level. If the actual span of the support and hanger of the cable tray is not equal to 2m, the uniform working load shall meet the requirements.

6）在各種部件，大跨距電纜橋架滿足相應的載荷條件的情況下，其規格和尺寸應與托盤和梯子的直截面和彎頭系列相匹配。

6) When various components and long-span cable bridges meet the corresponding load conditions, their specifications and dimensions shall match the straight section and elbow series of trays and ladders.

7）選擇電纜橋架的彎曲或上下引導裝置時，其長度不應小于電纜橋架中電纜的允許彎曲半徑。

7) When selecting the bending or upper and lower guiding device of cable tray, its length shall not be less than the allowable bending radius of cables in cable tray.

8）對于跨度大于6m的鋼制電纜橋架和跨度大于2m的鋁合金電纜橋架或大于D級載荷的承重要求，應根據工程條件計算或測試其強度，剛度和穩定性。

8) The strength, stiffness and stability of the steel cable tray with a span of more than 6m and the aluminum alloy cable tray with a span of more than 2m or the load bearing requirements of more than Class D shall be calculated or tested according to the engineering conditions.

9）當幾組電纜橋架以相同高度平行放置時，應考慮相鄰電纜橋架之間的維護和維修距離。

9) When several groups of cable trays are placed in parallel at the same height, the maintenance and repair distance between adjacent cable trays shall be considered.

此外大跨距橋架在腐蝕性環境中保護電纜具有非常好的效果，所以平常使用過程中要注意對其的維護保養，更多相關內容就來我們網站http://www.yeeones.com咨詢了解！

In addition, large-span bridges have a very good effect in protecting cables in corrosive environments, so attention should be paid to their maintenance during normal use. More relevant information can be found on our website http://www.yeeones.com Ask about it!