电缆桥架的类型多样，在我们的生活中也是比较多见的。据了解，大跨距电缆桥架型式多样，组装灵活，适用性强，是大型矿场、桥梁、水电站、隧道等配套桥架的好选择。下面山东桥架厂家来讲讲选用大跨距电缆桥架要注意的事情。

There are various types of cable trays, which are also relatively common in our lives. It is understood that large span cable bridges have various types, flexible assembly, and strong applicability, making them a good choice for supporting bridges in large mines, bridges, hydropower stations, and tunnels. Next, Shandong bridge manufacturers will talk about matters needing attention when selecting large span cable bridges.

1、电缆桥架、线槽及其支吊架使用在有腐蚀性环境中，应采用耐腐蚀的刚性材料制造，或采取防腐蚀处理，防腐蚀处理方式应满足工程环境和耐久性的要求。

1. Cable trays, trunking, and their supports and hangers used in corrosive environments should be made of corrosion-resistant rigid materials or undergo anti-corrosion treatment. The anti-corrosion treatment method should meet the requirements of the engineering environment and durability.

2、电缆桥架在有防火要求的区段内，可在电缆梯架、托盘内添加具有耐火或难燃性能的板、网等材料构成封闭或半封闭式结构，并采取在桥架及其支吊架表面涂刷防火涂层等措施，其整体耐火性能应满足有关规范或标准的要求。

2. In sections with fire protection requirements for cable trays, materials such as plates and nets with fire resistance or flame retardant properties can be added to cable ladders and trays to form a closed or semi closed structure. Measures such as applying fire retardant coatings to the surface of the cable tray and its supports and hangers should be taken, and its overall fire resistance should meet the requirements of relevant national codes or standards.

3、在工程防火要求较高的场所，不宜采用铝合金电缆桥架。

3. Aluminum alloy cable trays should not be used in places with high engineering fire protection requirements.

4、电缆梯架、托盘宽度和高度的选择应符合填充率的要求，电缆的梯架和托盘内的填充率在一般情况下，电力电缆可取40%～50％，控制电缆可取50%～70％，且宜预留10%～25％工程发展裕量。

4. The selection of the width and height of the cable ladder and tray should meet the requirements for the filling rate. In general, the filling rate in the ladder and tray of the cable can be 40% to 50% for power cables, 50% to 70% for control cables, and a 10% to 25% engineering development margin should be reserved.

5、在选择电缆桥架的荷载等级时，电缆桥架的工作均布荷载不应大于所选电缆桥架荷载等级的额定均布荷载，如果电缆桥架的支吊架的实际跨距不等于2m时，则工作均布荷载应满足要求。

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

6、各种组件及支吊架在满足相应荷载的条件下，其规格尺寸应与托盘、梯架的直线段、弯通系列相匹配。

6. The specifications and dimensions of various components and supports and hangers should match the straight section and bend through series of trays and ladders under the conditions of meeting corresponding loads.

7、在选择电缆桥架的弯通或引上、引下装置时，不应小于电缆桥架内电缆小允许弯曲半径。

7. When selecting the bend through, up lead, and down lead devices for the cable tray, they should not be smaller than the small allowable bending radius of the cable inside the cable tray.

8、对于跨距大于6m的钢制电缆桥架和跨距大于2m或承载要求大于荷载等级D级的铝合金电缆桥架，应按工程条件进行强度、刚度及稳定性的计算或试验验证。

8. For steel cable bridges with span greater than 6m and aluminum alloy cable bridges with span greater than 2m or bearing requirements greater than load level D, strength, stiffness, and stability calculations or test verification shall be conducted according to engineering conditions.

9、几组电缆桥架在同一高度平行敷设时，各相邻电缆桥架之间应考虑维护、检修距离。

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

通过上面的介绍，大家都清楚了吧。如果您对此产品有需求或者有使用疑惑，欢迎来我们网站http://www.sddlqj.cn进行咨询留言！

Through the above introduction, everyone is clear. If you have any needs or doubts about using this product, please come to our website http://www.sddlqj.cn Leave a consultation message!