Requirements for overhead laying of outdoor optical cables
Overhead laying can exist between buildings, between buildings and telephone poles, and between telephone poles and telephone poles. The actual operation depends on the situation at the time. Certainly.
When there are telegraph poles between buildings, a steel wire rope can be erected between the building and the telegraph pole, and the optical cable can be tied to the wire rope; if there are no telegraph poles between the buildings, but there are When the distance is about 50m, optical cables can also be installed directly between buildings through steel cables. The laying requirements are as follows:
1. When laying optical cables in a flat environment using overhead methods, use hooks for hanging; when laying optical cables in mountains or steep slopes, use binding methods to lay optical cables.The optical cable connector should be positioned on a straight pole that is easy to maintain, and the reserved optical cable should be fixed on the pole with a reserved bracket.
2. The optical cable of the overhead pole path is required to make U-shaped telescopic bends every 3 to 5 poles, and approximately 15m is reserved for every 1km.
3. The overhead (wall) optical cable should be protected with galvanized steel pipe, and the pipe opening should be blocked with fireproof mud.
4. Optical cable warning signs should be hung on overhead optical cables every 4 bars or so and in special areas such as across roads, rivers, and bridges.
5. The intersection of the hanging wire and the power line should be protected by a three-prong protective tube, and the extension of each end should not be less than 1m.
