桥架是用来敷设电力电缆和控制电缆的，线槽是敷设导线和通讯线缆的;桥架比较大（200x100到600x200)，一般建筑的楼层间、各个配电室间等用的比较多。
Bridge frame is used to lay power cables and control cables, and cable grooves are used to lay wires and communication cables. Bridge frame is relatively large (200x100 to 600x200). There are more use between floors and distribution rooms in general buildings.
线槽比较小；桥架拐弯半径比较大，线槽大部分拐直角弯；桥架跨距比较大，线槽比较小；固定、安装方式不同；在有些场所，桥架是没有盖的，线槽几乎全是带盖密闭的......线槽用在各配电柜、仪表柜内用的比较多
Wire grooves are relatively small; the bending radius of the bridge is relatively large, most of the grooves are right-angled; the span of the bridge is relatively large, and the grooves are relatively small; the fixing and installation methods are different; in some places, the bridge is uncovered, and almost all the grooves are sealed with caps... Wire grooves are used more in various distribution cabinets and instrument cabinets.
线槽是用来走线的，桥架是用来走电缆的
Cable grooves are used for wiring, and bridge frames are used for wiring.