The structure of GYFDZY (non-metallic reinforcing member, optical fiber ribbon loose-layer twisted semi-dry, low-smoke halogen-free flame retardant polyolefin bonding sheathed outdoor optical cable for communication) optical cable is to sleeve single-mode optical fiber ribbon into a high-modulus fiber optic cable. In the loose tube made of plastic, the loose tube is filled with fiber paste. At the center of the cable core is a non-metallic reinforcing core, possibly extruded with a layer of polyethylene (PE). The loose tube (and filling rope) is twisted around the central reinforcing core to form a compact and round cable core, and the outer cable core is longitudinally wrapped with a water-blocking tape, and then a low-smoke halogen-free flame retardant polyolefin sheath is extruded.
 
Loose tube construction, tubes jelly filled, elements (tubes and filler rods when necessary) and water blocking yarns laid up around non-metallic central strength member(with cushion when necessary), polyester yarns used to bind the cable core, filling rod filled in the apertures of the cable core, then water blocking tape and PE outer sheath with FRP reinforcing member.

Fiber color code 

Fiber color in each tube starts from No. 1 Blue.

1	2	3	4	5	6
Blue	Orange	Green	Brown	Gray	White
7	8	9	10	11	12
Red	Black	Yellow	Violet	Pink	Aqua

 
Color codes for loose tube 
Tube color starts from No. 1 Blue.

1	2	3	4	5	6
Blue	Orange	Green	Brown	Gray	White
7	8	9	10	11	12
Red	Black	Yellow	Violet	Pink	Aqua

Cable structure and parameter

SN	Item	Unit	Value
1	No. of fibers	count	864
2	Fiber No. per ribbon	count	12
3	Ribbon No. per tube	count	12
4	No. of elements	count	6
5	Cable diameter(±5%)	mm	26.8
6	Cable weight(±10%)	kg/km	563
7	Short term tension	N	2700
8	Short term crush	N/100mm	1000

 
Characteristic of Optical Cable  
1. Min. bending radius for installation 
Static: 10x cable diameter 
Dynamic: 20x cable diameter 
 
2. Application temperature range 
Operation: - 40℃ ~ +70℃ 
Installation: -20℃ ~ +70℃ 
Storage/transportation: - 40℃ ~ +70℃ 
 
3. Main mechanical & environmental performance test

Item	Test Method	Acceptance Condition
Tensile Strength IEC 60794-1-2-E1	- Load: Short term tension - Length of cable: about 50m - Load time: 1min	- Fiber strain £ 0.6% - No fiber break and no sheath damage.
Crush Test IEC 60794-1-2-E3	- Load: Short term crush - Load time: 1min	- Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage.

 
Characteristic of Optical FiberG652D fiber information
Mode field diameter (1310nm): 9.2m0.4m
Mode field diameter (1550nm): 10.4m0.5m
Cut off wavelength of cabled fiber (cc): 1260nm
Attenuation at 1310nm: 0.36dB/km
Attenuation at 1550nm: 0.22dB/km
Bending loss at 1550nm (100 turns, 30mm radius): 0.05dB
Dispersion in the range 1288 to 1339nm: 3.5ps/ (nm•km)
Dispersion at 1550nm: 18ps/ (nm•km)
Dispersion slope at zero dispersion wavelength: 0.092ps/ (nm2•km)

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Product Tags:

opgw fiber optic cable

slt fiber optic cable

pre terminated fibre optic cable

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