电缆桥架的电缆填充率为电缆桥架内所有电力电缆的总截面（包括外护层）与桥架的有效截面之比。下面山东电缆桥架小编来讲讲电缆桥架电缆填充率的相关规定。

The cable filling rate of the cable tray is the ratio of the total section (including the outer sheath) of all power cables in the cable tray to the effective section of the cable tray. Next, Shandong Cable Bridge will talk about the relevant provisions on the cable tray cable filling rate.

根据相关设计规范规定，“在电缆桥架上可以无间距敷设电缆，电缆在桥架内横断面的填充率：电力电缆不应大于40%；控制电缆不应大于50%。”

According to relevant design specifications, "cables can be laid on the cable tray without spacing. The filling rate of the cable in the cross section of the cable tray: power cable shall not be greater than 40%; control cable shall not be greater than 50%."

在对应的条文说明中，明确说明“控制、信号线路等非载流导体，不存在因散热不良而损坏导线绝缘问题，填充率可增50%”。

In the corresponding article description, it is clearly stated that "the non current carrying conductors such as control and signal lines do not have the problem of damaging the conductor insulation due to poor heat dissipation, and the filling rate can be increased to 50%".

在相关使用手册标明，桥架内的线缆（电力电缆、通信电缆、控制电缆）敷设方式为平行敷设，其中电力电缆应有适当的间距。

It is indicated in the relevant user manual that the cables (power cables, communication cables, control cables) in the cable tray are laid in parallel, and the power cables shall have proper spacing.

因此，可以认为控制电缆、信号电缆在桥架中的截面利用率为50%是指平行敷设（排整齐）时的数据。

Therefore, it can be considered that the section utilization ratio of control cable and signal cable in the bridge is 50%, which refers to the data when they are laid in parallel (in order).

在相关条文说明中，提供了关于托盘、梯架的发展裕量：

In the description of relevant articles, the development margin of tray and ladder is provided:

根据有关产品设计导则指出，电缆托架内要为以后增加电缆或为正在设计中的托架进行扩充留出足够的备用空位。一般留10%～25%备用空位是合适的。

According to relevant product design guidelines, sufficient spare space shall be reserved in the cable tray for future cable addition or expansion of the tray under design. It is generally appropriate to reserve 10%~25% spare space.

工程实践中在布线工程的桥架设计时，截面利用率通常都定义为33%（为了计算方便），经过大量工程验证，采用该数值的桥架完全能够确保在施工中不会出现桥架上盖盖不紧的现象，并还能够具有一定容量的冗余，即具有增加少量其它弱电线缆的能力。

In engineering practice, when designing the cable tray for wiring engineering, the utilization ratio of the cross section is usually defined as 33% (for the convenience of calculation). After a lot of engineering verification, the cable tray with this value can completely ensure that the cover of the cable tray is not tight during construction, and it can also have redundancy of a certain capacity, that is, it has the ability to add a small number of other weak current cables.

电缆桥架电缆填充率的相关规定就讲解到这里了，您对此有什么要解答的来我们网站http://www.sddlqj.cn进行咨询！

This is the end of the relevant regulations on cable tray and cable filling rate. Please come to our website for any answers http://www.sddlqj.cn Consult!