Central Tube Light-armored Cable (GYXTW) Fiber Optic Cable

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Central Tube Light-armored Cable (GYXTW) Fiber Optic Cable

The structure of GYXTW optical cable involves placing optical fibers in a loose tube made of high-modulus material, filled with waterproof compound. The loose tube is longitudinally wrapped with a double-sided plastic-coated steel strip (PSP), and waterproof material is added between the steel strip and the loose tube to ensure the compactness and longitudinal water blocking of the cable. Two parallel steel wires are placed on both sides and then extruded with a polyethylene sheath to form the cable.

Characteristics

High crush resistance
Small diameter and light weight
Duct or direct buried installation or aerial installation together with tension strand wire

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Model:
GYXTW

Product Description

Optical Characteristics

Parameter / Property	G.652.D	G.655	50/125μm	62.5/125μm
Attenuation @850nm	-	-	≤3.0 dB/km	≤3.0 dB/km
Attenuation @1300nm	-	-	≤1.0 dB/km	≤1.0 dB/km
Attenuation @1310nm	≤0.36 dB/km	≤0.40 dB/km	-	-
Attenuation @1550nm	≤0.22 dB/km	≤0.23 dB/km	-	-
Bandwidth @850nm	-	-	≥500 MHz·km	≥200 MHz·km
Bandwidth @1300nm	-	-	≥1000 MHz·km	≥600 MHz·km
Polarization mode dispersion (Individual fibre)	≤0.20 ps/√km	≤0.20 ps/√km	-	-
Design link value (M=20, Q=0.01%)	≤0.1 ps/√km	≤0.1 ps/√km	-	-

Technical Data

Item	Contents	Value
	Fiber Count	6	12	24
Loose Tube	No. of tubes*fiber per tube	1*6	1*12	1*24
	Outer Diameter (mm)	3.0	3.0	3.2
Strength member	Material	Phosphated steel wire
	Diameter (mm)	1.2
Water blocking material	Material	Water blocking tape
Armor	Material	Corugated steel tape
Sheath	Thickness(mm)	Nomnal:2.6
Cable Diameter(mm)Approx		10.6
Cable Weight(kg/km)Approx		100
Operating Temperature Range(℃)		-40~+70
Tensile Strength Short/Long Term(N)		1500/600
Crush Resistance Short/Long Term(N/100mm)		3000/1000

The color arangement of fiber is specified in the color identification table
Other stucture and fiber count are also available according to customer requirements

Main Mechanical and Environmental Performances

Item	Test Standard	Specified Value	Requirements
Tension	IEC 60794-1-2-E1	See Technical data	Additional attenuation ≤ 0.1dB after test
Crush	IEC 60794-1-2-E3	See Technical data	Additional attenuation ≤ 0.1dB after test
Impact	IEC 60794-1-2-E4	R=300mm, 10Nm one in 3 different places	Additional attenuation ≤ 0.1dB after test
Repeated Bending	IEC 60794-1-2-E6	R=20*D	Additional attenuation ≤ 0.1dB after test
Water Penetration	IEC 60794-1-2-F5	Sample length=3m, Water height=1m 24 hours	No water leakage
Temperature Cycling	IEC 60794-1-2-F1	-40°C~+70°C	Attenuation change: ≤ 0.05dB/km after test