DAO
* DAO
| In cable conduit, blocs, in special pipes, in case of increased the demands for protection against water encroachment.
|
DAC
* DAC
| In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
|
DAU
* DAU
| In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
|
DP2
* DP2
| In soils of all groups, in areas with active manifestations of permafrost deformations.
|
DPL
* DPL
| In cable conduit, blocs, pipes at danger of damage by rodents, on bridges and trestle-works.
|
DPM
* DPM
| In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
|
DPO
* DPO
| In cable conduit, blocs, in special pipes.
|
DPC
* DPC
| In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
|
DPT
* DPT
| For hanger on tangent towers, contact railroad network, on supports of communication lines.
|
OA2
* OA2
| In soils of all groups in areas with active manifestations of permafrost deformations.
|
OAC
* OAC
| In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
|
OPC
* OPC
| In soils of all groups in case of building in trench, groups 1-3 in case of building by the íîæåâûì cable-layer.
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