Loose Tube Stranded Non-Metallic Strength Member Unarmored Optical Cable (GYFTY)

The GYFTY optical cable consists of 250µm fibers placed into loose tubes made of high-modulus material, with the tubes filled with water-blocking compound. The center of the cable core is a fiber-reinforced plastic (FRP) strength member. The loose tubes (and fillers) are stranded around the central strength member into a compact and circular cable core, with water-blocking filling in the interstices. The core is finished with an extruded polyethylene jacket.

Standards

YOFC GYFTY optical cable complies with YD/T 901 and IEC 60794-1 standards.

Features

• Excellent mechanical performance and temperature characteristics

• The loose tube material itself has excellent hydrolysis resistance and high strength

• The tubes are filled with special jelly for critical protection of the fibers

• Good crush resistance and flexibility

• The following measures are adopted to ensure the waterproof performance of the cable:

- Single non-metallic central strength member

- Loose tubes filled with special water-blocking compound

- Fully filled cable core

Construction Parameters

Cable Type (In increments of 2 fibers)	Number of Fibers	Number of Tubes	Number of Fillers	Reference Cable Weight （kg/km）	Allowable Tensile Load Long-term/Short-term (N)	Allowable Crush Load Long-term/Short-term (N/100mm)	Bending Radius Static/Dynamic (mm)
GYFTY-2~6Xn	2~6	1	5	86	400/1000	300/1000	12.5D/25D
GYFTY-8~12Xn	8~12	2	4	86
GYFTY-14~18Xn	14~18	3	3	86
GYFTY-20~24Xn	20~24	4	2	86
GYFTY-26~30Xn	26~30	5	1	86
GYFTY-32~36Xn	32~36	6	0	86
GYFTY-38~48Xn	38~48	4	2	109
GYFTY-50~60Xn	50~60	5	1	109
GYFTY-62~72Xn	62~72	6	0	109
GYFTY-2~6Xn	2~6	1	6	98	600/1500
GYFTY-8~12Xn	8~12	2	5	98
GYFTY-14~18Xn	14~18	3	4	98
GYFTY-20~24Xn	20~24	4	3	98
GYFTY-26~30Xn	26~30	5	2	98
GYFTY-32~36Xn	32~36	6	1	98
GYFTY-38~42Xn	38~42	7	0	98
GYFTY-44~48Xn	44~48	4	3	115
GYFTY-50~60Xn	50~60	5	2	115
GYFTY-62~72Xn	62~72	6	1	115
GYFTY-2~6Xn	2~6	1	7	119	1000/3000
GYFTY-8~12Xn	8~12	2	6	119
GYFTY-14~18Xn	14~18	3	5	119
GYFTY-20~24Xn	20~24	4	4	119
GYFTY-26~30Xn	26~30	5	3	119
GYFTY-32~36Xn	32~36	6	2	119
GYFTY-38~42Xn	38~42	7	1	119
GYFTY-44~48Xn	44~48	8	0	119
GYFTY-50~60Xn	50~60	5	3	125
GYFTY-62~72Xn	62~72	6	2	125
GYFTY-74~84Xn	74~84	7	1	125
GYFTY-86~96Xn	86~96	8	0	125
GYFTY-98~108Xn	98~108	9	1	149
GYFTY-110~120Xn	110~120	10	0	149
GYFTY-122~132Xn	122~132	11	1	179
GYFTY-134~144Xn	134~144	12	0	179

Storage and operating temperature: -40℃ to +70℃.

Optical Characteristics

Fiber Type	Attenuation （+20℃）				Bandwidth		Numerical Aperture	Cable Cutoff Wavelength
Fiber Type	@850nm	@1300nm	@1310nm	@1550nm	@850nm	@1300nm	Numerical Aperture	Cable Cutoff Wavelength
G.652	---	---	≤0.36dB/km	≤0.22dB/km	---	---	---	≤1260nm
G.655	---	---	≤0.40dB/km	≤0.23dB/km	---	---	---	≤1450nm
50/125µm	≤3.3dB/km	≤1.2dB/km	---	---	≥500MHz·km	≥500MHz·km	0.200±0.015 NA	---
62.5/125µm	≤3.5dB/km	≤1.2dB/km	---	---	≥200MHz·km	≥500MHz·km	0.275±0.015 NA	---

Application: Duct, Aerial

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Loose Tube Stranded Non-Metallic Strength Member Unarmored Optical Cable (GYFTY)

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