大跨距电缆桥架是一种较通常电缆桥架的支持跨度大，且因为结构上规划精巧，因而又比通常电缆桥架具有承载才能大等特色的桥架，所以它不只适用于炼油、化工、纺织、机械、冶金、电力、电视、播送等工矿企事业的室内外电缆架空的敷设，也可作为地下的工事，例如：地铁、人防工程的电缆沟和电缆地道内支架。
Long span cable tray is a kind of cable tray with larger supporting span than the common cable tray, and because of its exquisite structural planning, it has the characteristics of carrying capacity larger than the common cable tray, so it is not only suitable for the indoor and outdoor cable aerial laying of oil refining, chemical industry, textile, machinery, metallurgy, electric power, television, broadcasting and other industrial and mining enterprises, but also can be used as underground workers Things, such as: subway, civil air defense engineering cable trench and cable tunnel support.
大跨距电缆桥架共包含大跨距的梯级、托盘、槽式、重载荷梯架、直角三通、多节三通、直角四通，以及相应类型的连接件，盖板和支柱。
The long-span cable bridge consists of long-span steps, trays, troughs, heavy load ladders, right angle tees, multi section tees, right angle crosses, and corresponding types of connectors, covers and struts.