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Double Armored Buried Fiber Cable GYTA53

Double Armored Buried Fiber Cable GYTA53 is a heavy-duty outdoor fiber optic cable engineered with double armoring and double sheathing for demanding underground installation conditions. This Heavy Duty Buried Fiber Cable combines SZ-stranded loose tubes, high-tensile strength members, and multi-layer water blocking to protect optical fibers against pressure, moisture, and rodent damage. 

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  • Product Details
SN Item Unit Value
1 No. of fibers count 12 24 48 96 144
2 No. of fibers per tube count 6  12
3 Loose tube&filler count 2&3 4&1 4&1 8&0 12&0
4 Loose tube size mm 1.6     1.9
5 Central strength/coating size mm 1.2 1.4 1.8/3.3 2.0/5.7
6 Cover material/color PE black
7 Armoured material APL&PSP tape
8 Inner thickness mm 0.8
9 Outer thickness mm 1.6
10 Cable diameter mm 11.2 12.3 14.4 16
11 Cable weight kg/km 115 112 132 185 220
12 Tensile Long/Short N 1000/3000
13 Minimum bend radius D During installation: 20 x cable diameter
After installed: 10 x cable diameter
1.5 Environmental Performance
Operating temperature: -30℃/+60℃
Installation temperature -30℃/+60℃
Storage temperature -40℃/+70℃

2 Fiber characteristics
2.1 G.652D
2.1.1 Geometric characteristics

Item Construction
Mode field diameter At 1310nm 9.2±0.4μm
Cladding diameter 125±1μm
Core concentricity error ≤0.6μm
Cladding non-circularity ≤1.0%
Cut-off wavelength(λcc) (for cable) ≤1260nm
Cut-off wavelength(λc) (for fiber) 1180nm~1330nm
Primary coating diameter (Not included color layer)
(Included color layer)		 245±10μm
250±15μm
Coating-cladding concentricity error ≤12.5μm
Fiber curl radius ≥4m

2.1.2 Transmission characteristics
Item Performance
Attenuation At 1310nm
At 1550nm		 ≤0.36dB/km (max.)
≤0.21dB/km (max.)
Macro bending loss Φ=60mm, 100turns at 1550nm ≤0.1dB
Chromatic dispersion Within 1288~1339nm
At 1550nm		 ≤3.5ps/nm·km
≤17ps/nm·km
Zero dispersion wavelength 1300~1324nm
Zero dispersion slope ≤0.092ps/nm²·km
Dispersion mode bias 0.5ps/km^1/2


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