Cable tray plays a key role in the process of cable wiring, so its structural strength is very important. If the strength does not meet the standard, there will be great uncertain factors in the process of use. Therefore, what conditions should the structural strength of cable tray meet? The following Xiaobian will give you a detailed introduction.

1、電纜橋架的承載能力不得超過使橋架產(chǎn)生變形時的大荷載除以系數(shù)為1.5的數(shù)值。

1. The bearing capacity of the cable tray shall not exceed the large load when the cable tray is permanently deformed divided by the safety factor of 1.5.

2、電纜橋架在允許工作載荷作用下的相對撓度值，鋼制不宜大于1/200，鋁合金制不宜大于1/300。

2. The relative deflection of cable tray under the allowable safe working load shall not be greater than 1 / 200 for steel and 1 / 300 for aluminum alloy.

3、鋼制托臂在允許承載下的偏斜與臂長比值不宜大于1/100。

3. The ratio of deflection to arm length of steel supporting arm under allowable bearing shall not be greater than 1 / 100.

4、核電廠級電路電纜橋架應滿足抗震Ⅰ類物項設計要求，應同時采用運行地震震動和極限地震震動進行抗震設計。

4. The safety grade circuit cable tray of nuclear power plant shall meet the design requirements of seismic category I items, and the seismic design shall be carried out by using both operation safety seismic vibration and ultimate safety seismic vibration.

電纜橋架的結構強度應該滿足以上條件，才能夠在電纜線的敷設過程中進行使用，所以大家在進行選擇購買以及使用之前，一定要對橋架的產(chǎn)品質量以及性能做一個充分的鑒定，只有達到合格標準的產(chǎn)品才能夠繼續(xù)使用，這樣才能夠保證在后期的使用過程中不發(fā)生問題。

The structural strength of cable tray should meet the above conditions before it can be used in the laying process of cable. Therefore, before choosing, purchasing and using, we must fully identify the product quality and performance of cable tray, and only products that meet the qualified standards can continue to be used, Only in this way can we ensure that there are no problems in the later use process.