電纜橋架的電纜填充率為電纜橋架內所有電力電纜的總截面（包括外護層）與橋架的有效截面之比。下面山東電纜橋架小編來講講電纜橋架電纜填充率的相關規定。

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.

根據相關設計規范規定，“在電纜橋架上可以無間距敷設電纜，電纜在橋架內橫斷面的填充率：電力電纜不應大于40%；控制電纜不應大于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%."

在對應的條文說明中，明確說明“控制、信號線路等非載流導體，不存在因散熱不良而損壞導線絕緣問題，填充率可增至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%".

在相關使用手冊標明，橋架內的線纜（電力電纜、通信電纜、控制電纜）敷設方式為平行敷設，其中電力電纜應有適當的間距。

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，可以認為控制電纜、信號電纜在橋架中的截面利用率為50%是指平行敷設（排整齊）時的數據。

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).

在相關條文說明中，提供了關于托盤、梯架的發展裕量：

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

根據有關產品設計導則指出，電纜托架內要為以后增加電纜或為正在設計中的托架進行擴充留出足夠的備用空位。一般留10%～25%備用空位是合適的。

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.

工程實踐中在布線工程的橋架設計時，截面利用率通常都定義為33%（為了計算方便），經過大量工程驗證，采用該數值的橋架完全能夠確保在施工中不會出現橋架上蓋蓋不緊的現象，并還能夠具有一定容量的冗余，即具有增加少量其它弱電線纜的能力。

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.

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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.ymmgjx.net Consult!