Loose sleeve stranded light armored fiber optic cable

The structure of the GYTS fiber optic cable is that a 250μm optical fiber is sleeved into a loose tube made of high-modulus material, and the loose tube is filled with a waterproof compound. In the center of the core is a metal reinforcing core, and for some core cables, a layer of polyethylene (PE) is squeezed out of the metal reinforcing core. The loose tube (and filler rope) are twisted around the central reinforcing core to form a compact and rounded core, and the gaps within the core are filled with water-blocking filling. Double-sided plastic-coated steel tape (PSP) is longitudinally wrapped and extruded into a polyethylene sheath to form a cable.

Description

Product standards: • YOFC’s GYTS fiber optic cables comply with YD/T 901 and IEC 60794-1 standards.

Features:

It has very good mechanical properties and temperature characteristics
The loose tube material itself has good hydrolysis resistance and high strength
The tube is filled with a special ointment to protect the optical fiber
The specially designed tight cable structure effectively prevents the casing from retracting
Good compression resistance and softness
The PE sheath has very good resistance to UV radiation
The following measures are taken to ensure the waterproof performance of the fiber optic cable

– Single wire center reinforcing core

– The loose tube is filled with a special waterproofing compound

– Full core filling

– Double-sided plastic-coated steel tape armor

Structural parameters

Fiber optic cable model (in 2-fiber increments)	Number of fibers	Number of casings	Number of fill ropes	Reference cable weight （kg/km）	Tensile force is allowed Long-term/short-term (N)	Allowable squashing force Long-term/short-term (N/100mm)	Bend radius Static/Dynamic (mm)
GYTS-2~6Xn	2~6	1	4	96	600/1500	300/1000	10D/20D
GYTS-8~12Xn	8~12	2	3	96
GYTS-14~18Xn	14~18	3	2	96
GYTS-20~24Xn	20~24	4	1	96
GYTS-26~30Xn	26~30	5	0	96
GYTS-32~36Xn	32~36	6	0	105
GYTS-38~48Xn	38~48	4	1	111
GYTS-50~60Xn	50~60	5	0	111
GYTS-62~72Xn	62~72	6	0	138
GYTS-74~84Xn	74~84	7	1	168
GYTS-86~96Xn	86~96	8	0	168
GYTS-98~108Xn	98~108	9	1	195
GYTS-110~120Xn	110~120	10	0	195
GYTS-122~132Xn	122~132	11	1	228
GYTS-134~144Xn	134~144	12	0	228
GYTS-146~216Xn	146~216	13~18	5~0	228
GYTS-288Xn	288	24	0	283

Storage and use temperature: -40°C to +70°C.

Optical properties

Fiber type	attenuation （+20℃）				bandwidth		Numerical aperture	Fiber optic cable cut-off wavelength
Fiber type	@850nm	@1300nm	@1310nm	@1550nm	@850nm	@1300nm	Numerical aperture	Fiber optic cable cut-off wavelength
G.652	—	—	≤0.36dB/km	≤0.22dB/km	—	—	—	≤1260nm
G.655	—	—	≤0.40dB/km	≤0.23dB/km	—	—	—	≤1450nm
50/125µm	≤3.0dB/km	≤1.0dB/km	—	—	≥500MHz·km	≥500MHz·km	0.200±0.015 NA	—
62.5/125µm	≤3.3dB/km	≤1.0dB/km	—	—	≥200MHz·km	≥500MHz·km	0.275±0.015 NA	—