Features

The structure of the standard figure-eight self-supporting stranded optical cable is that multimode or single mode fiber optic cables are sheathed in a loose tube made of high modulus plastic, and the tube is filled with a water blocking compound. The center of the cable core is a metal reinforced core. For certain fiber optic cables, a layer of polyethylene needs to be squeezed outside the metal-reinforced core. The loose tube (and filler rope) is twisted around the central reinforced core to form a compact and Round cable core, the gap in the cable core is filled with water blocking filler. The cable core is longitudinally wrapped with steel-plastic composite tape, and placed in parallel with the steel strands while extruding a figure-eight sheath into a cable.

Cable parameters

Fiber Model	Tube No.	Steel stranded wire Dia. mm	Cable OD. mm	Weight kg/km	Tensile resistance Long/short term N	Crush resistance Long/short term N/100mm
GYTC8S-2~36Xn	5	3.0	9.2×6×16.5	150	3000/8000	300/1000
GYTC8S-48~60Xn	5	3.0	9.5×6×17	180	3000/8000	300/1000
GYTC8S-64~72Xn	6	3.0	10.5×6×19	200	3000/8000	300/1000
GYTC8S-96Xn	8	3.0	12.5×6×21	260	3000/8000	300/1000
GYTC8S-122~144Xn	12	3.0	14.5×6×24.5	350	3000/8000	300/1000

Cables Data

Item		Description
Fiber counts of cable		8
Loose tube	Material	PBT
	No. fiber per tube	8
	No. of  tube	1
	Diameter(mm)	Nom. 2.0
	Filling compound Material	Thixotropic jelly
Suspension wire	Material	Metallic strengthen member
	Diameter	1.0mm*7
Approx. cable dia.(mm)		Approx.8.3
Approx. overall(mm)		Approx.15.8
Max. Tensile strength(N)		3000
Crush Resistance (N/100mm)		7990
Operating Temperature(℃)		0 ~ +60

Characteristics of GYTC8S&GYXTC8S Fiber Optical Cable

Optical fiber characteristics (G.652D FIBER)

Category	Description		Specifications
			Before cabling		After cabling
Optical Specifications	Attenuation @1550 nm		≤0.20 dB/km (max.)		≤0.22 dB/km (max.)
	Attenuation @1625 nm		≤0.23dB/km		≤ 0.24 dB/km
	Zero Dispersion Wavelength		≤1520 nm
	Zero Dispersion Slope		≤ 0.084 ps/nm2·km
	Polarization Mode Dispersion(PMD)		≤0.08 ps/km
	Cable Cutoff Wavelength (λcc)		≤1450 nm
	Macro bending Loss(1 turn; Ф32 mm) @1550 nm(100 turns; Ф60 mm) @1625 nm(100 turns; Ф50 mm) @1310 &@1625 nm		≤ 0.05 dB≤ 0.05 dB≤0.05 dB
	Mode Field Diameter	@1550 nm	9.6±0.5μm
DimensionalSpecifications	Cladding Diameter		124.8 ±0.7μm
	Core/clad concentricity error		≤0.6μm
	Cladding Non-Circularity		≤1.0%
MechanicalSpecifications	Min bending radius		12.5D  (static)	25D  (dynamic)
	Proof Test level		≥1.2%
	Fiber Curl Radius		≥4.0m
	Peak Coating Strip Force		0.9~6.8N

Specification of GYTC8S / GYXTC8S Fiber Optic Cable

No	Item	Test standard	Method	Acceptance criteria
1	Tensiletest	IEC-60794-1-E1	Max. Tensile strengthSample length:50 metersTime: 1minutes;	-Fiber strain at maximumLoad: max. 0.33%-Attenuation increase≤0.10dB
2	Crushtest	IEC-60794-1-E3	Load:1000NTime: 1 minutesLength: 100mm	-No splits or cracks in theouter jacket;-Attenuation increase<0.10dB,
3	Impacttest	IEC-60794-1-E4	Impact energy: 450gHeight:1 meterImpact points: min.1Number of impacts: 5	-No splits or cracks in the outer jacket-Attenuation increase≤0.10dB
4	Repeated bending	IEC-60794-1-E6	R=20×cable outer diameter1m cable length with 150N weight,30 cycles	– No splits or cracks in the outer jacket-Attenuation increase ≤0.10dB
5	Torsiontest	IEC-60794-1-E7	1m cable length with 150N weight±180 degrees, 10 cycles	– No splits or cracks in the outer jacket-Attenuation increase ≤0.10B
6	Bendingtest	IEC-60794-1-E11	Diameter of mandrel: 20×DNumber of turns/helix:10Number of cycles: 5	– No splits or cracks in the outer jacket- No fiber break
7	Temperature cycling test	IEC-60794-1-F1	Temperature step: +20℃→0℃→+60℃→0℃→+60℃→+20℃Time per each step: 12 hrsNumber of cycles: 2 cycles	-Attenuation variation for reference value(the attenuation to be measured before test at +20±3℃) ≤0.10dB,
8	Water penetration test	IEC-60794-1-F5	Water height: 1mSample length:3mDuration of test: 24hrs	-No water leakage at the end of the sample
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

Advantages of GYTC8S / GYXTC8S Fiber Optic Cable

•  Use high-quality optical fiber to ensure that the optical cable has excellent transmission performance

•  Accurately control the excess length of the outdoor fiber optic cable to ensure that the optical cable has excellent mechanical and high/low-temperature characteristics

•  Full-section water-blocking structure to ensure good water-blocking and moisture-proof performance

•  The loose tube is filled with special grease to protect the optical fiber critically

•  The longitudinally clad steel tape strengthens the resistance to lateral pressure of the optical cable

Drawing of GYTC8S & GYXTC8S Fiber Optical Cable

Packaging

•  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 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 fiberManufacturer nameMonth and Year of ManufactureCable 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 logoCable lengthCable type and number of fibersRoll wayGross and net weight