Welcome To Twentsche (Nanjing) Fibre Optics Ltd. (for short: TFO)！
Loose Tube OPGW
Central Tube OPGW
The fibers are positioned in a jelly filled stainless steel tube. The tubes are filled with a water-resistant filling
compound. The tube is stranded with the ACS and AA wires and the gaps are filled with corrosion
resistance compound.
Characteristics：
1. The stainless steel tube that houses the fibre has a high tensile strength and a high crush resistance in
order to provide an effective protection. The fibre is mechanically decoupled from other component parts of
the cable structure in all expected conditions of use. This ensures successful operation during the life
expectancy of the cable
2. TFO strives for compact and lightweight OPGW designs in order to reduce influences of wind and ice, and
to minimize loading of the towers of the power line grid
3. By protecting the opticing fibre using a gel filled stainless steel tube which has a high radial thermal
resistance, OPGW temperatures up to 300℃ can be allowed in a single phase short-circuit situation
4. TFO realizes high strength / small diameter OPGW designs by selecting the right type and size for the
aluminium cladded steel wires in the center of the structure
5. TFO strives for designs with properties that maximally approach those of conventional earth wires in
order to meet short-circuit requirements and to ensure secure operation of the power line circuit
Installation：Self-supporting aerial
Applications：Power line
Standards：DL/T 832/IEEE1138/IEC60794-4-10
