Name | Usage | |||
Laying in indoor and outdoor tunnels, cable trenches, or buried in loose soil, can withstand a little laying traction, but cannot withstand external mechanical forces, single-core cables are not allowed to be laid in magnetic pipelines | ||||
For laying indoors, it is also used for buried laying, where it can withstand external mechanical forces, but cannot withstand large tensile forces. | ||||
Laying in the shaft water or high drop area, can withstand mechanical external force and considerable pulling force | ||||
Laying in shafts, seabed or high-drop areas, it can withstand greater positive pressure and tension | ||||