電線和電纜通常是可以一起走同一橋架的，但需要滿足一定條件并遵循相關規范要求，具體如下：

Wires and cables can usually walk together on the same bridge, but they need to meet certain conditions and comply with relevant regulatory requirements, as follows:

電壓等級

Voltage level

一般情況下，不同電壓等級的電線電纜不宜敷設在同一橋架內。例如，1kV 及以下的電力電纜和 1kV 以上的電力電纜應分開敷設，以防止高電壓對低電壓線路產生干擾，同時也便于維護和管理。

Generally, wires and cables of different voltage levels should not be laid in the same cable tray. For example, power cables of 1kV and below and power cables of 1kV and above should be laid separately to prevent interference from high voltage to low voltage lines, and to facilitate maintenance and management.

但對于電壓等級較低且相互之間干擾影響較小的電線電纜，如同一配電箱內的控制電線和電力電纜，在采取適當的隔離措施后，可以敷設在同一橋架內。

But for wires and cables with lower voltage levels and less interference between each other, such as control wires and power cables in the same distribution box, after taking appropriate isolation measures, they can be laid in the same cable tray.

電纜類型

Cable Type

非屏蔽的電力電纜與控制電纜、信號電纜等分開敷設，因為電力電纜在運行時會產生電磁干擾，可能影響控制電纜和信號電纜的正常工作。如果必須敷設在同一橋架內，應采用金屬隔板將它們隔開，以減少電磁干擾。

It is best to lay unshielded power cables separately from control cables, signal cables, etc., as power cables can generate electromagnetic interference during operation, which may affect the normal operation of control cables and signal cables. If they must be laid in the same cable tray, metal partitions should be used to separate them to reduce electromagnetic interference.

對于有特殊要求的電纜，如消防電纜，為了保證在火災等緊急情況下的可靠性和獨立性，通常要求單獨敷設，不應與其他普通電線電纜共用橋架。如果確實需要共用橋架，消防電纜應采用防火橋架或在橋架內采取防火分隔措施。

For cables with special requirements, such as fire cables, in order to ensure reliability and independence in emergency situations such as fires, they are usually required to be laid separately and should not share cable trays with other ordinary wires and cables. If it is necessary to share a cable tray, fire-resistant cable trays should be used or fire-resistant separation measures should be taken inside the cable tray for firefighting cables.

橋架空間和敷設要求

Requirements for Bridge Space and Installation

橋架內的電線電纜敷設應排列整齊，避免交叉和混亂。電纜之間應保持一定的間距，以便于散熱和維護。一般要求電纜的總截面積（包括外護層）不應超過橋架橫斷面面積的 40%，控制電纜的總截面積不應超過橋架橫斷面面積的 50%。

The wires and cables inside the bridge should be arranged neatly to avoid crossing and confusion. A certain distance should be maintained between cables to facilitate heat dissipation and maintenance. Generally, it is required that the total cross-sectional area of the cable (including the outer protective layer) should not exceed 40% of the cross-sectional area of the cable tray, and the total cross-sectional area of the control cable should not exceed 50% of the cross-sectional area of the cable tray.

同時，電線電纜在橋架內敷設時應固定牢固，防止因振動、擺動等原因導致電纜損壞或脫落。在橋架的轉彎處、分支處等位置，電纜應進行合理的彎曲和固定，彎曲半徑應符合電纜的技術要求。

At the same time, when laying wires and cables in cable trays, they should be firmly fixed to prevent cable damage or detachment due to vibration, swinging, and other reasons. At the turning and branching points of the cable tray, the cable should be bent and fixed reasonably, and the bending radius should meet the technical requirements of the cable.

在實際工程中，電線和電纜是否能一起走同一橋架，需要根據具體的工程設計要求、電纜的特性以及相關的電氣安裝規范來確定。在施工過程中，還需要注意橋架的接地、防火、封堵等措施，以確保電氣系統的可靠運行。

In practical engineering, whether wires and cables can walk together on the same cable tray needs to be determined based on specific engineering design requirements, cable characteristics, and relevant electrical installation specifications. During the construction process, it is also necessary to pay attention to measures such as grounding, fire prevention, and sealing of the cable tray to ensure the safe and reliable operation of the electrical system.

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