Explanation/Annotation:In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
Detailed model description:In cable conduit, pipes, blocs, on bridges and trestle-works in case of increased the demands for stability to mechanical âîçäåéñâèÿì.
construction peculiarity of protective cover:
Òðóáàòûé core, single-layer iron wire armor, external polyethilene shell.
characteristic:
- central tube with optical fibers of ñâîäîáíîãî stowed or in bundles and hydrophobe gel;
- hydrophobic filling material;
- Áðîíåïîêðîâ from steel galvanized the rope wires with tensile strength on break no less than 1560 ÌÏà/êâ. MM;
- external polyethilene shell. |
