电线和电缆通常是可以一起走同一桥架的，但需要满足一定条件并遵循相关规范要求，具体如下：

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:

电压等级

Voltage level

一般情况下，不同电压等级的电线电缆不宜敷设在同一桥架内。例如，1kV 及以下的电力电缆和 1kV 以上的电力电缆应分开敷设，以防止高电压对低电压线路产生干扰，同时也便于维护和管理。

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.

但对于电压等级较低且相互之间干扰影响较小的电线电缆，如同一配电箱内的控制电线和电力电缆，在采取适当的隔离措施后，可以敷设在同一桥架内。

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.

电缆类型

Cable Type

非屏蔽的电力电缆与控制电缆、信号电缆等分开敷设，因为电力电缆在运行时会产生电磁干扰，可能影响控制电缆和信号电缆的正常工作。如果必须敷设在同一桥架内，应采用金属隔板将它们隔开，以减少电磁干扰。

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.

对于有特殊要求的电缆，如消防电缆，为了保证在火灾等紧急情况下的可靠性和独立性，通常要求单独敷设，不应与其他普通电线电缆共用桥架。如果确实需要共用桥架，消防电缆应采用防火桥架或在桥架内采取防火分隔措施。

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.

桥架空间和敷设要求

Requirements for Bridge Space and Installation

桥架内的电线电缆敷设应排列整齐，避免交叉和混乱。电缆之间应保持一定的间距，以便于散热和维护。一般要求电缆的总截面积（包括外护层）不应超过桥架横断面面积的 40%，控制电缆的总截面积不应超过桥架横断面面积的 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.

同时，电线电缆在桥架内敷设时应固定牢固，防止因振动、摆动等原因导致电缆损坏或脱落。在桥架的转弯处、分支处等位置，电缆应进行合理的弯曲和固定，弯曲半径应符合电缆的技术要求。

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.

在实际工程中，电线和电缆是否能一起走同一桥架，需要根据具体的工程设计要求、电缆的特性以及相关的电气安装规范来确定。在施工过程中，还需要注意桥架的接地、防火、封堵等措施，以确保电气系统的可靠运行。

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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