Stranded Loose Tube Non-metallic StrengthMember Light-armored Cable (GYFTS) Fiber Optic Cable

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Stranded Loose Tube Non-metallic StrengthMember Light-armored Cable (GYFTS) Fiber Optic Cable

The tubes are filled with a water-resistant filling compound. A FRP, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a non-metallic strength member. The cable tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The PSP is longitudinally applied over the cable core, which is filled with the filling compound to protect it from water ingress.

Characteristics

Good crush resistance
Duct installation or aerial installation

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Model:
GYFTS

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 fiber)	≤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
Item	Fibre Count	24	48	72	96	144	288
Loose Tube	No.of tubes*fibres per tube	4*6	4*12	6*12	8*12	12*12	24*12
Loose Tube	Outer diameter(mm)	1.9	2.4
Central Strength Member	Material	FRP
	Diameter(mm)	2.0	2.0	2.6	2.6	2.6	2.6
	Coated CSM diameter(mm)	-	-		4.2	7.4	4.8
Water blocking material	Material	Cable filling compound
Armor	Material	Corrugated steel tape
Sheath	Thickness (mm)	Nominal:1.8
Cable Diameter(mm)Approx		10.4	11.1	12.1	14.0	17.2	19.5
Cable Weight(kg/km)Approx		100	120	150	190	270	340
Operating Temperature Range(℃)		-40~+70
Tensile Strength Short/Long Term(N)		2000/600
Crush Resistance Short/Long Term(N/100mm)		2000/600

The colour arrangement of fibre and tube is specified in the color identification table.
Other structure and fibre 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, 20Nm 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