The cable ducts made of high density polyethylene (PE-HD) are intended for mechanical protection of fibre optic and metal cables. They are used on installations of local and long-distance telephone networks, cable television transmissions, information transfer networks, etc.
Function:
- serves to form cable conduits for subsequent installation of cables (by pulling or blowing)
- provides a protection for the installed cables
- permits an easy replacement of cables without the necessity to dig the cables out
Advantages:
- increased efficiency in network building
- ease of connecting the ducts with the aid of couplings
- a print indicating length of cables gives information about the length of the cable installed
- possibility of using ducts of different colour allows to distinguish cables when several cables are installed in a single trench
- strength imparting the duct compression resistance
- heat resistance providing satisfactory mechanical properties in the temperature range from -20 to +55 °C
- long durability
- resistance to moisture, oil, petrol, rodents and other unfavourable factors that may affect the duct underground
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