大跨距电缆桥架是一种较一般电缆桥架的支撑跨度大，且由于结构上设计精巧，因而又比一般电缆桥架具有承载能力大等特点的桥架，所以它不仅适用于炼油、化工、纺织、机械、冶金、电力、电视、广播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隧道内支架。
Long span cable tray is a kind of cable tray with larger supporting span than general cable tray, and because of its exquisite structural design, it has the characteristics of large bearing capacity and so on. Therefore, it is not only suitable for indoor and outdoor cable aerial laying of oil refining, chemical industry, textile, machinery, metallurgy, electric power, television, radio and other industrial and mining enterprises, but also can be used as underground workers For example: subway, civil air defense cable trench and cable tunnel support.
大跨距电缆桥架共包括大跨距的梯级、托盘、槽式、重载荷梯架、直角三通、多节三通、直角四通，以及相应型号的连接件，盖板和支柱。
The long-span cable bridge consists of a large span of steps, trays, troughs, heavy-duty load ladders, right angle tees, multi section tees, right angle crosses, as well as connectors, covers and struts of corresponding models.
大跨距电缆桥架备有盖板，需要配盖板时在订货时说明，或按盖板型号订货。
Large span cable bridge is equipped with cover plate, which shall be specified when ordering or ordered according to the model of cover plate.