The structure of GYTA cable is that single-mode or multi-mode optical fiber is sheathed in a loose tube made of high modulus polyester material, and the tube is filled with waterproof compound. The
center of the cable core is a metal reinforced core. For certain GYTA fiber cable or gyts fiber optic , a layer of polyethylene (PE) needs to be squeezed outside the metal reinforced core. The
loose tube (and filling rope) is twisted around the central reinforcing core to form a compact circular cable core, and the gaps in the cable core are filled with water blocking fillers.
Plastic-coated aluminum tape (APL) is longitudinally wrapped and then extruded into a cable with a polyethylene sheath.
As one of the professional fiber optic accessories suppliers, TUOLIMA can customize the optical cable according to your requirements. If you need any technical support, we will also recommend the
most suitable and cost-effective customized ADSS fiber optical cable for you according to the use environment, laying method and terminal customer requirements of the optical cable. You can check
the details of our gyta53 fiber cable below. If you have any questions, feel free to consult.
Specification of GYTA Fiber Optical Cable
Test Standard Specified value Acceptance criteria
Tension IEC 794-1-E1 Short term (during installation): 1500N Short term tension: Every fiber in the cable elongation rate should be less than 0.33%, after the tension deleted, no fiber attenuation
change happens.
Long term (during operation): 600N Long term tension: The optical fiber shall have no distinct additional attenuation and strain.
Crush IEC 794-1-E3 Short term (during installation): 1000 N/100mm Short term: Δα<0.2dB
Long term (during operation): 300 N/100mm Long term: The optical fiber shall have no distinct additional attenuation and strain.
Impact IEC 794-1-E4 500g, 1m The optical fiber shall have no distinct additional attenuation and strain after test.
Repeated bending IEC 794-1-E6 15kg The optical fiber shall have no distinct additional attenuation and strain.
Torsion IEC 794-1-E7 15kg, ±180° The optical fiber shall have no distinct additional attenuation and strain.
Temperature cycling IEC 794-1-F1 -40℃~+70℃, 2 cycles Δα<0.2dB/km
Water penetration IEC 794-1-F5 Sample 3m, water 1m, 24h No water leakage
The tolerable bend radius of the cable Dynamic (during installation):
20xCable OD
Static (during operation):
10xCable OD
Service Life Time 25 years
Test Requirement of GYTS Fiber Optical Cable
No Item Test standard Method Acceptance criteria
1 Tensile IEC-60794-1-E1 Max. Tensile strength:1500N -Fiber strain at maximum
test Sample length:50 meters Load: max. 0.33%
Time: 1minutes; -Attenuation increase≤0.1dB
2 Crush IEC-60794-1-E3 Load:1000N -No splits or cracks in the
test Time: 1 minutes outer jacket;
Length: 100mm -Attenuation increase<0.1dB, (After the test)
3 Impact IEC-60794-1-E4 Impact energy: 450g -No splits or cracks in the outer jacket
test Height:1 meter -Attenuation increase≤0.1dB(After the test)
Impact points: min.1
Number of impacts: 5
4 Repeated bending IEC-60794-1-E6 R=20×cable outer diameter - No splits or cracks in the outer jacket
1m cable length with 150N weight,30 cycles -Attenuation increase ≤0.1dB(After the test)
5 Torsion IEC-60794-1-E7 1m cable length with 150N weight - No splits or cracks in the outer jacket
test ±180 degrees, 10 cycles -Attenuation increase ≤0.1dB(After the test)
6 Bending IEC-60794-1-E11 Diameter of mandrel: 20×D - No splits or cracks in the outer jacket
test Number of turns/helix:10 - No fiber break
Number of cycles: 5
7 Temperature cycling test IEC-60794-1-F1 Temperature step: +20℃→-40℃→+60℃→-40℃→ -Attenuation variation for reference value(the attenuation to be measured before test at +20±3℃) ≤0.1dB/km,
+60℃→+20℃
Time per each step: 12 hrs
Number of cycles: 2 cycles
8 Water penetration test IEC-60794-1-F5 Water height: 1m -No water leakage at the end of the sample
Sample length:3m
Duration of test: 24hrs
9 Drip test IEC-60794-1-E14 Five 0.3m samples suspended vertically in a climate chamber, raised temperature to +70℃ -No filling compound shall drip from tubes after 24 hr
Packing and Comments of GYTA Fiber Optic Cable
Packing material: Non-returnable wooden drum.
Both ends of cable are securely fastened to drum and sealed with a shrinkable cap to prevent ingress of moisture.
Cable printing: The sequential number of the outdoor optical cable length shall be marked on the outer sheath of the cable at an interval of 1meter ± 1%.
The following information shall be marked on the outer sheath of the cable at an interval of about 1 meter.
Cable type and number of optical fiber
Manufacturer name
Month and Year of Manufacture
Cable length
Drum marking: Each side of every wooden drum shall be permanently marked in a minimum of 2.5~3 cm high lettering with following:
Manufacture name and logo
Cable length
Cable type and number of fibers
Roll way
Gross and net weight
