ASU

Cable size: Smaleer size with low purchasing cost, All dielectric structure and less weight matches well for aerial cable

• 1. Product Description

  This specification covers the general requirements and performance of cable, which OPT offered including optical characteristics, mechanical characteristics and geometrical characteristics and etc.

• 2. Optical Fiber

  Optical fiber characteristics (FPC G.652D FIBER)

  Category	Description	Specifications
  		G.652D
  Optical Specifications	Attenuation @1310nm	≤0.40dB/km
  Optical Specifications	Attenuation @1550nm	≤0.30dB/km
  Optical Specifications	Attenuation discontinuity	≤0.05 dB
  Optical Specifications	Attenuation vs. Wavelength @1285~1330nm	≤0.05 dB/km
  Optical Specifications	Attenuation vs. Wavelength @1525~1575nm	≤0.05 dB/km
  Optical Specifications	Zero Dispersion Wavelength	1300~1324nm
  Optical Specifications	Zero Dispersion Slope	≤0.092ps/(nm2.km)
  Optical Specifications	Dispersion @1310nm	≤3.5 ps/nm.km
  Optical Specifications	Dispersion @1550nm	≤18 ps/nm.km
  Optical Specifications	Polarization Mode Dispersion(PMD)	≤0.2ps/km1/2
  Optical Specifications	Cable Cutoff Wavelength(λcc)	≤1260nm
  Optical Specifications	Effective Group Index of Refraction @1310nm	1.4675
  Optical Specifications	Effective Group Index of [email protected]	1.4681
  Geometric Specifications	Mode Field Diameter @1310nm	9.2±0.4μm
  Geometric Specifications	Mode Field Diameter  @1550nm	10.4±0.8μm
  Geometric Specifications	Cladding Diameter	125±1μm
  Geometric Specifications	Cladding Non-Circularity	≤1.0%
  Geometric Specifications	Coating Diameter	243±7μm
  Geometric Specifications	Coating/Cladding Concentricity Error	≤12μm
  Geometric Specifications	Core/Cladding Concentricity Error	≤0.8μm
  Mechanical Specifications	Proof Test level	≥1.0%
  Mechanical Specifications	Fiber Curl Radius	≥4.0m
  Mechanical Specifications	Peak Coating Strip Force	1.3~8.9N

   

• 3. Optical Cable

  1.Construction of cable

  Cable type		1-12	1-12
  Span	m	80	120
  element	—	3	3
  Strength Member	Material	Fiberglass Reinforce with Plastic (FRP)	Fiberglass Reinforce with Plastic (FRP)
  Strength Member	Diameter	Nom.2.0mm	Nom.2.5mm
  Strength Member	Number	2	2
  Loose Tube	Material	Polybutelene Terephthalate (PBT)	Polybutelene Terephthalate (PBT)
  Loose Tube	Diameter	Nom.2.1 mm	Nom.2.5
  Filling compound in loose tube	Material	Thixotropic jelly	Thixotropic jelly
  Water blocking	Material	Water blocking yarn	Water blocking yarn
  Outer Sheath	Material	Black HDPE	Black HDPE
  Outer Sheath	Thickness	Nom.1.0mm	Nom.1.0mm
  Outer Diameter	mm	Nom.6.8	Nom.8.0
  Cable Weight	kg/km	Approx.44	Approx.62
  Short term tensile	N	850	1250

  3.2 Fiber coding

  The color coding of the optical fiber shall be in accordance with Table 3.2.1

  No. of fiber	1	2	3	4	5	6
  Color of fiber	green	yellow	white	blue	red	violet
  No. of fiber	7	8	9	10	11	12
  Color of fiber	brown	pink	black	gray	orange	aqua

  Table3.2.2：Identification of optical tube

  No. of tube	1
  Color of tube	Blue

  Table3.2.3：Make-up of cable, No. of Fibers in each Tube

  No.of Fibers	No.of Tube		1	2	3
  6	1	Tube color	Blue	FRP	FRP
  6	1	No. of fiber	6	FRP	FRP
  12	1	Tube color	Blue	FRP	FRP
  12	1	No. of fiber	12	FRP	FRP

   

• 4. Test Requirements

  No	Item	Test standard	Method	Acceptance criteria
  1	Tensile test	IEC-60794- 1-E1	-Max. Tensile strength -Sample length:50 meters -Time: 10minutes;	-Attenuation increase≤0.10dB
  2	Crush test	IEC-60794- 1-E3	-Load:500N -Time: 5minutes -Length: 100mm – Position: One point and one time	-No splits or cracks in the outer jacket; -Attenuation increase<0.10dB
  3	Impact test	IEC-60794- 1-E4	-Impact energy: 200g – Height:1 meter -Impact points: 1 -Number of impacts: 5	-No splits or cracks in the outer jacket -Attenuation increase≤0.10dB(after the test)
  4	Torsion test	IEC-60794- 1-E7	-1m cable length with 150N weight -±180°, 10 cycles	– No splits or cracks in the outer jacket -Attenuation increase ≤0.10dB(after the test)
  5	Repeated bending	IEC-60794- 1-E6	-Radius=25×cable outer diameter -1m cable length with 150N weight,25 cycles	– No splits or cracks in the outer jacket -Attenuation increase ≤0.10dB(after the test)
  6	6 Temperature cycling test	IEC-60794- 1-F1	-Temperature step: +20 ℃ →- 40 ℃ →+60 ℃ →-40℃→+60℃→+20℃ -Time per each step: 12 hrs – Number of cycles: 2 cycles	-Attenuation variation for reference value(the attenuation to be measured before test at +20±3℃) ≤0.10dB/km,
  7	Cable bending test	IEC 60794- 1-E11B	-Diameter of mandrel :25×diameter of cable – Number of cycles:1 cycle	Change of attenuation shall not be greater than 0.1dB.No fiber break and no cable damage.
  8	Water penetration test	IEC-60794- 1-F5	-Water height: 1m -Sample length:3m -Duration of test: 24hrs	No water leakage at the end of the sample
  9	Drip test	IEC-60794- 1-E14	-Five 0.3m samples suspended vertically in a climate chamber, raised temperature to +70℃	-No filling compound shall drip from tubes after 24 hr

   

• 5.Packing and Drump

  1.The cable is wound on a non-returnable wooden drum. Both ends of cable are securely fastened to drum and sealed with a shrinkable cap to prevent ingress of moisture. The following information shall be marked on the outer sheath of the cable at an interval of about 1 meter.

  – Cable type and number of optical fiber

  – Manufacturer name

  – Month and Year of Manufacture

  – Cable length The sequential number of the cable length shall be marked on the outer sheath of the cable at an interval of 1meter ± 1%.

  5.2 Drum marking, Each side of every wooden drum shall be permanently marked in a minimum of 2.5~3 cm high lettering with following:

  – Manufacture name and logo

  – Cable length

  – Cable type and number of fibers

  – Roll way

  – Gross and net weight