大跨距桥架的缆索是固定的。纵桥水平铺设时，连接应尽可能位于四分之一处。水平电缆每2米左右固定一次，垂直电缆每1.5米固定一次。

The cables of the large-span bridge are fixed. When the longitudinal bridge is laid horizontally, the connection should be located as much as possible at a quarter point. Horizontal cables are fixed every 2 meters, and vertical cables are fixed every 1.5 meters.

大跨距桥架的选择取决于其使用环境。在选择合适的桥梁时，可以减少工程量;往往安装还是有很多困难，需要人员来安装。这样才能更好的面对使用过程中的不足，更好的利用电缆盘。

The selection of large-span cable trays depends on their usage environment. When selecting a suitable bridge, the amount of work can be reduced; There are often many difficulties in installation and professional personnel are needed to install it. In this way, we can better face the shortcomings during use and make better use of cable reels.

在电力资源的长距离运输中，需要选择使用大跨度的电缆桥架，这样可以降低施工强度。这对建筑工人也很重要，尤其是电缆安装工作量大的人。

In the long-distance transportation of power resources, it is necessary to choose to use large-span cable trays to reduce construction intensity. This is also important for construction workers, especially those with a heavy workload in cable installation.

在选择大跨距桥架时，还有很多因素需要注意。比如要合理参考某些标准。如果我们不是人士，那会给我们大家带来更多的麻烦，尤其是后期的安装。所以消费者要认真对待。因此，在安装电缆槽时，我们不应粗心大意。那么大跨距桥架的类型和品种有哪些选择?

When choosing a large-span bridge, there are many factors to pay attention to. For example, it is necessary to refer to certain standards reasonably. If we are not professionals, it will bring us all more trouble, especially in the later installation. So consumers need to take it seriously. Therefore, when installing cable trays, we should not be careless. So what are the types and varieties of large-span cable trays to choose from?

大跨距桥架由拉挤玻璃钢型材组装而成，电力电缆、控制电缆、照明电缆及附件也很适用。与铁桥比起来，它使用寿命长，寿命可达20年、安装简单、成本不高、切割方便、不需要进行过多的维护。

The large-span bridge is assembled from extruded fiberglass profiles, and is also suitable for power cables, control cables, lighting cables, and accessories. Compared with iron bridges, it has a longer service life, with a lifespan of up to 20 years, simple installation, low cost, convenient cutting, and no need for excessive maintenance.

大跨距桥架的宽度和高度应符合不超过相关标准和规范的电缆真实充电率规定值。

The width and height of the large-span cable tray should comply with the specified true charging rate of the cable according to relevant standards and specifications.

当大跨距桥架需要屏蔽有电气干扰的电缆网络或有保护不受外界影响(如腐蚀性液体、易燃粉尘等环境)的要求时，应选用(FB)型槽式复合防腐屏蔽大跨度电缆桥架(带盖)。

When large-span cable trays require shielding of cable networks with electrical interference or protection from external influences (such as corrosive liquids, flammable dust, etc.), (FB) type trough type composite anti-corrosion shielding large-span cable trays (with covers) should be selected.