Loose Tube Armored Flame-retardant Direct Buried Cable

GYTA53(GYFTA53) / GYTS53(GYFTS53)

Loose Tube Armored Flame-retardant Direct Buried Cable

The fibers are positioned in a loose tube made of PBT. The tubes are filled with a water-resistant filling compound. A steel wire or FRP is located in the center of the core as a metallic strength member. The tubes and the fillers are stranded around the strength member into a compact and circular core. An Aluminum Polyethylene Laminate (APL) or steel tape is applied around the cable core, which is filled with filling compound to protect it from water ingress. Then the cable core is covered with a thin PE inner sheath. After the PSP is longitudinally applied over the inner sheath, the cable is completed with a PE (LSZH) outer sheath.(WITH DOUBLE SHEATHS)


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Product Features

Excellent mechanical and temperature performance.

Resistant to high and low temperature cycles, resulting in anti-aging and a longer lifespan.

Loose tube stranding cable core ensures stable cable structure.

Single steel wire serves as the central strength member to withstand axial loads.

100% core filling with water prevents cable jelly to ensure cable watertightness.

Aluminum tape longitudinally covers cable core as a moisture barrier.

Inner sheath effectively reduces external mechanical loading.

Corrugated steel tape longitudinally covers cable core and provides good crush resistance.

Outer sheath protects cable from ultraviolet radiation.

Optical Characteristics

Fiber Type Attenuation 1310nm MFD

(Mode Field Diameter)

Cable Cut-off Wavelength λcc(nm)
@1310nm(dB/KM) @1550nm(dB/KM)
G652D ≤0.36 ≤0.22 9.2±0.4 ≤1260
G657A1 ≤0.36 ≤0.22 9.2±0.4 ≤1260
G657A2 ≤0.36 ≤0.22 9.2±0.4 ≤1260
G655 ≤0.4 ≤0.23 (8.0-11)±0.7 ≤1450
50/125 ≤3.5 @850nm ≤1.5 @1300nm / /
62.5/125 ≤3.5 @850nm ≤1.5 @1300nm / /

Technical Parameters

Fibre Count Configuration
Tubes×Fibres
Filler Number Cable Diameter
(mm) ±0.5
Cable Weight
(kg/km)
Tensile Strength (N) Crush Resistance (N/100mm) Bend Radius (mm)
Long Term Short Term Long Term Short Term Dynamic Static
6 1×6 5 13.1 195 1000 3000 1000 3000 25D 12.5D
12 2x6 4 13.1 195 1000 3000 1000 3000 25D 12.5D
24 4x6 2 13.1 195 1000 3000 1000 3000 25D 12.5D
36 6x6 0 13.1 195 1000 3000 1000 3000 25D 12.5D
48 4x12 2 13.8 220 1000 3000 1000 3000 25D 12.5D
60 5x12 1 13.8 220 1000 3000 1000 3000 25D 12.5D
72 6x12 0 13.8 220 1000 3000 1000 3000 25D 12.5D
96 8x12 0 15.4 250 1000 3000 1000 3000 25D 12.5D
144 12x12 0 18.0 320 1200 3500 1200 3500 25D 12.5D
192 8x24 0 18.0 330 1200 3500 1200 3500 25D 12.5D
288 12x24 0 20.1 435 1500 4000 1500 4000 25D 12.5D

Application

Long-distance, LAN communication.

Laying Method

Direct burial.

Connecting communication equipments.

Multi-cores wiring system in data center.

Operating Temperature

Temperature Range
Transportation Installation Operation
   -40℃~+70℃    -20℃~+60℃    -40℃~+70℃

Standard

YD/T 901, IEC 60794-3-10

Packing And Mark

OYI cables are coiled on bakelite, wooden, or ironwood drums. During transportation, the right tools should be used to avoid damaging the package and to handle them with ease. Cables should be protected from moisture, kept away from high temperatures and fire sparks, protected from over-bending and crushing, and protected from mechanical stress and damage. It is not allowed to have two lengths of cable in one drum, and both ends should be sealed. The two ends should be packed inside the drum, and a reserve length of cable not less than 3 meters should be provided.

Loose Tube Non-metallic Heavy Type Rodent Protected

The color of cable markings is white. The printing shall be carried out at intervals of 1 meter on the outer sheath of the cable. The legend for the outer sheath marking can be changed according to the user's requests.

Test report and certification provided.

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