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8. Central Loose Tube Fiber Optic Cables

◎ Applications:

Long distance telephone, CATV, Data communications.

◎ Installations:

Installed in duct, self supporting (Figure 8 self supporting or ADSS All dielectric self supporting) and direct

burial (with armouring).

◎ Construction:

The cable consists of a single tube containing 2 up to 24 fibers, which is filled with water-blocking gel. When the

cable contains more than 12 fibers, they are divided in two groups. A colored thread identifies each group. Physical

protection and tensile strength are provided by aramid yarn or fiberglass wound around the tube. Either PE or LSZH

jacket can be used. A ripcord is located under the jacket to facilitate jacket removal.

◎ Technical Parameters:

☆ Maximum Transmission Distance: 6km (Single Mode); 0.3km (Multimode)

☆ Maximum Pulling Load: 1500N (Short Term Installation); 900N (Long Term Installation)

☆ Maximum Compressive load: 3000N (3.3mm loose tube diameter); 5000N (4.5mm loose tube diameter)

☆ Twist (Torsion Length): 125 x Overall Diameter

☆ Working Temperature: -20℃ ~ +70℃ (PE sheath)

☆ Storage Temperature: -40℃ ~ +70℃ (PE sheath)

◎ Product Highlights:

☆ Small diameter and light weight.

☆ Through the control of the fiber exceed length which is the key technology in optical fiber manufacture, the fiber

cable can achieve better pulling load and operating temperature.

☆ Tube Materials are water resistant and can sustain high tension. Being filled with special water-blocking gel, the

tube can provide water protection for the fibers inside the tube.

☆ Compact construction of the fiber cores can prevent the fiber to shrink back. This can sustain higher tensile stress

and achieve better flexibility.

☆      Wide operating temperature range.