大跨距橋架的纜索是固定的?？v橋水平鋪設時，連接應盡可能位于四分之一處。水平電纜每2米左右固定一次，垂直電纜每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.

大跨距橋架的選擇取決于其使用環境。在選擇合適的橋梁時，可以減少工程量;往往安裝還是有很多困難，需要人員來安裝。這樣才能更好的面對使用過程中的不足，更好的利用電纜盤。

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.

在電力資源的長距離運輸中，需要選擇使用大跨度的電纜橋架，這樣可以降低施工強度。這對建筑工人也很重要，尤其是電纜安裝工作量大的人。

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.

在選擇大跨距橋架時，還有很多因素需要注意。比如要合理參考某些標準。如果我們不是人士，那會給我們大家帶來更多的麻煩，尤其是后期的安裝。所以消費者要認真對待。因此，在安裝電纜槽時，我們不應粗心大意。那么大跨距橋架的類型和品種有哪些選擇?

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?

大跨距橋架由拉擠玻璃鋼型材組裝而成，電力電纜、控制電纜、照明電纜及附件也很適用。與鐵橋比起來，它使用壽命長，壽命可達20年、安裝簡單、成本不高、切割方便、不需要進行過多的維護。

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.

大跨距橋架的寬度和高度應符合不超過相關標準和規范的電纜真實充電率規定值。

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.

當大跨距橋架需要屏蔽有電氣干擾的電纜網絡或有保護不受外界影響(如腐蝕性液體、易燃粉塵等環境)的要求時，應選用(FB)型槽式復合防腐屏蔽大跨度電纜橋架(帶蓋)。

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.