| 摘要 |
A support system for data transmission lines and the like, comprising a rail section supported generally horizontally, a splice for connecting the rail section and another structure, and a fastener for securing the splice to the rail section. Each rail section has a hollow box beam portion having a top wall, opposite side walls and a bottom wall. Each splice has a central part and first and second end parts, the first end part being receivable in an open end of the box beam portion of the rail section and the second end part being connectable to the structure. The central part of the splice has an outside width immediately adjacent the first end part of the splice essentially the same as the outside width of the rail section immediately adjacent its open end thereby to provide smooth junctures between the central part of the splice and the rail section at opposite sides of the rail section when the first end part of the splice is received in the rail section.
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