GYTA / GYTS Fiber Optic Cable

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