Loose Tube Non-metallic Strength Member & Non-armored Cable GYFTY

Loose Tube Non-metallic Strength Member & Non-armored Cable GYFTY

Stranded loose tube non-metallic strength member and non-armored cable (GYFTY) construction is that 250um fibers are positioned in a loose tube which is made of high modulus plastic and filled with a water-resistant filling compound; A fiber reinforced plastic (FRP), sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a non-metallic strength member; Tubes are stranded around the strength member into a compact and circular cable core; After the cable core is filled with the filling compound which protects it from water ingress, the cable is completed with a polyethylene (PE) sheath.

Main Features

Good mechanical and temperature performance

High hydrolysis resistance and high strength loose tube

Good crush resistance and flexibility

High tensile strength ensured by FRP central strength member

Good anti-electromagnetism due to non-metallic central strength member (FRP)

Standards

GYFTY cable complies with Standard IEC 60793, IEC60794, TIA/EIA, ITU-T

Optical Characteristics:

Fiber Type		G.652	G.655	50/125μm	62.5/125μm
Attenuation (+20℃)	850 nm			≤3.0 dB/km	≤3.3 dB/km
	1300 nm			≤1.0 dB/km	≤1.0 dB/km
	1310 nm	≤0.36 dB/km	≤0.40 dB/km
	1550 nm	≤0.22 dB/km	≤0.23 dB/km
Bandwidth	850 nm			≥500 MHz-km	≥200 Mhz-km
Bandwidth	1300 nm			≥500 MHz-km	≥500 Mhz-km
Numerical Aperture				0.200±0.015 NA	0.275±0.015 NA
Cable Cut-off Wavelength λcc		≤1260 nm	≤1450 nm

Product Specification:

Fiber Count	Nominal Diameter (mm)	Nominal Weight (kg/km)	Max Fiber Per Tube	Max No. of (Tubes+Fillers)	Allowable Tensile Load (N)		Allowable Crush Resistance (N/100mm)
Fiber Count	Nominal Diameter (mm)	Nominal Weight (kg/km)	Max Fiber Per Tube	Max No. of (Tubes+Fillers)	Short Term	Long Term	Short Term	Long Term
2~30	8.7	62	6	5	1500	600	1000	300
32~48	9.0	66	8	6	1500	600	1000	300
50~72	9.3	69	12	6	2000	600	1000	300
74~96	11	97	12	8	2000	600	1000	300
98~144	12.3	120	12	12	2000	600	1000	300

Note: This datasheet can only be a reference, but not a supplement to the contract. Please contact our sales people for more detailed information.

GYFTY (non-metallic strengthening member, loose tube stranded and filled, polyethylene sheathed outdoor optical fiber cable for communication) The structure of the optical cable is to sheath a single-mode or multi-mode optical fiber into a high-modulus plastic filled with waterproof compound loose In the casing. The center of the cable core is a non-metallic reinforced core (FRP). For certain fiber optic cables, a layer of polyethylene (PE) is extruded outside the non-metallic reinforced core or a non-metallic reinforced yarn is added to the cable core. line. The loose tube (and filling rope) is twisted around the central reinforcing core to form a compact and circular cable core. The gaps in the cable core are filled with water blocking compounds and polyethylene sheaths.

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