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Fiber optical cable GYTS

GYTS is the outdoor fiber optic cable type used for duct and aerial applications. We supply single mode GYTS fiber optical cable and multimode GYTS fiber optic cable, fiber strand from 2 cores to 432 cores. A related GYTA type cable is available.
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  1. Sheath Marking
  2. The color of marking is natural, but if the remarking is necessary, the yellow color marking shall be printed newly on a different position. The marking interval is 1 meter.
  3. An occasional unclear of length marking is permitted if both of the neighboring markings are clear.
  4. The both cable ends are sealed with heat shrinkable end caps to prevent water ingres. Ends A is red, and ends B is green.
  5. Fiber Color Indentification
Fibers colors marked according to Full Color Identification, the colors shall be chosen from the colors in the following sheet. Natrual is allowed if no affection to the identification.
No. 1 2 3 4 5 6 7 8 9 10 11 12
Color Blue Orange Green Brown Gray White Red Black Yellow Violet Pink Aqua
  1. Loose tube
Loose tubes color identification used in cable is Indicatory Color Indentification.When faced to the cable’s ends A, the number is increased by the clockwise direction, and the number of loose tubes and the colors shall conform to the following sheet. If loose tubes are not enough, using fillers instead, and the fillers are all white.
Item 1 2 3 4 5 6 7 8 9 10 11 12
Color red Green Natural(N) N N N N N N N N N
  1. Cable Construction Parameter:
Fiber number 2～30 32～36 38～60 62～72 74～84
Tube outer diameter(mm) 1.9 1.9 2.3 2.3 2.3
Tube number 5 6 5 6 7
Max. fiber number per tube 6 6 12 12 12
Cable outer diameter(mm) 10.3 10.6 11.1 11.8 12.5
Cable weight(Kg/Km) 110 130 135 160 165
Fiber number 86～96 98～108 110～120 122～132 134～144
Tube outer diameter(mm) 2.3 2.3 2.3 2.3 2.3
Tube number 8 9 10 11 12
Max. fiber number per tube 12 12 12 12 12
Cable outer Diameter(mm) 13.2 13.9 14.6 15.4 16.1
Cable weight (Kg/Km) 180 200 215 235 250
  1. Fiber properties (The properties of SM optical fiber ITU-T Rec.G.652D)
Items Specified Values
Fiber Type G.652 Single-mode fiber
Mode Field Diameter@1310nm 9.2±0.4μm
Cladding Diameter 125.0±1.0μm
Mode Field Concentricity Error ≤0.5μm
Cladding No Circularity Error 1.0%
Cut-Off Wavelength λcc(test 20m cable+2m fiber) ≤1260 nm
Attenuation Coefficient
1310nm
1550nm		  
≤0.36 dB/km
≤0.22 dB/km
Dispersion Coefficient 1288-1339nm≤3.5ps/nm.km
1270-1360nm≤5.3ps/nm.km
1550nm≤18ps/nm.km
1625nm≤22ps/nm.km
Zero Dispersion Wavelength 1300nm-1324nm
Zero Dispersion Slope ≤0.09ps/nm2.km
PMDQ* PMDQ*≤0.2ps/km1/2
Coating Diameter 245±10μm
Proof Test 100kpsi（0.7Gpa）
* PMDQ is a link of 20 cable sections (M) and a probability level of 0.01% (Q)
  1. Characteristic of Optical Cable
    1. Mechanical & environmental characteristics
      1. Cable bending radius:
Static：12.5×cable diameter
Dynamic：25×cable diameter
  1. Temperature Ranges
Operating Temperature -40℃~+60℃
Storage and Transportation Temperature -50℃~+70℃
Installation Temperature -20℃~+60℃
  1. Main mechanical & environmental characteristics test
Item Testing Test Method Acceptance Requirement
1 Tensile strength
IEC 60794-1-E1		 Long term：1000N
Short term：3000N
Cable length：≥50m		 Loss change≤0.1dB@1550nm
No fiber break and no sheah damage
2 Crush Resistance
IEC 60794-1-E3		 Long term：1000 N/100mm
Short term：3000 N/100mm
Add time：1 minute		 Loss change≤0.1dB@1550nm
No fiber break and no sheah damage
3 Impact
IEC 60794-1-E4		 Height：１ｍ
weight： 1kg
Impact spot：≥5
Impact cycle：at lease 3 cycle per spot		 Loss change≤0.1dB@1550nm
No fiber break and no sheah damage
4 Repeated Bending
IEC 60794-1-E6		 Bending diameter：25X the cable outer diameter
Applied load：25kg
Bending cycle：30 times
Bending speed：1 cycle per 2 s		 Loss change≤0.1dB@1550nm
No fiber break and no sheah damage
5 Torsion
IEC 60794-1-E7		 Torsion length：1ｍ
Applied load：25kg
Torsion angle：±90 or +180
Twist cycle：≥10 times		 Loss change≤0.1dB@1550nm
No fiber break and no sheah damage
6 Water Penetration
IEC 60794-1-F5B		 Water height：1ｍ
Cable length：3ｍ
Keeping time：24 hours		 No water leaked from the opposite end of cable
7 Temperature
IEC 60794-1-F1		 Temperature step：＋20℃、－40℃、＋60℃、＋20℃　
Keeping time：24 hours per each step
Cycle：2 times		 Loss change≤0.1dB@1550nm
No fiber break and no sheah damage
8 Compound flow
IEC 60794-1-E14		 Sample length：30cm
Temperature：70℃±2℃
Keeping time：24 hours		 No compound flow
9 Sheath high voltage Test On line test
DC 9t kV（t -sheath thickness，mm）		 No sheath brokendown
  1. Packing and Marking
    1. Packing
Each single length of cable shall be reeled on Wooden Drum.
The both cable ends are sealed with heat shrinkable end caps to prevent water ingres. Ends A is red, and ends B is green.
At least 1 m of inside end of cable will be reserved for testing.
  1. Drum Marking(can according to the requirement in the technical specifications)
Manufacturer name;
Manufacturing year and month;
Roll-direction arrow;
Cable type and size;
Drum number;
Cable length;
Gross weight;
Other customer information such as contract no., project no., and delivery destination. (if needed)
5.3.  Cable identification documents
  • Product qualified certificate;
  • Test report.
 
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Kunshan Kewei Fiber Communcations Equipment Co.,Ltd.

Tel: 0512-57873993
Fax: 0512-57873993
Mobile: +86 18625257159
Whatspp:+86 18625257159
 E-mail: janewang@keweifiber.com
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