Specification for Loose Tube Fiber Optic Cable (Non-Metallic, Dry Block, Figure-8) (G.652.D)

Transcription

1 2-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo , Japan No. FB-KL4001C for Loose Tube Fiber Optic Cable (Non-Metallic, Dry Block, Figure-8) (G.652.D) Aug

2 1. General This specification describes the construction and properties of Loose Tube Fiber Optic Cable for duct install application. The optical fiber used in the cable is in compliance with fiber attributes of ITU-T G.652.D. 2. Construction and Characteristics 2.1 Optical Fiber Attributes : Table Construction of Loose Tube : Table Construction of Optical Cable : Table 3 and Fig Color Code : Table Optical Properties of the Optical Cable : Table Mechanical and Environmental Properties : Table 6 of the Optical Cable 2.7 Mechanical and Environmental Characteristics : Table 7 of the Optical Cable 3. Sheath printing The following information shall be printed by suitable method on the outer sheath of the cable with white color in one-meter intervals. the accuracy of length marking is ±1%. When re-marking is necessary, it shall be printed in yellow color. (1) Manufacturer's name (2) Month and Year of manufacture (3) Length marking (4) Number of Fiber (5) "PLDT CO. PROPERTY - FIBER OPTIC CABLE" 4. Packing 4.1 Drum The cable will be delivered in the length required on a wooden drum. 4.2 Cable end The running end shall be fitted with a suitable cap and the other end shall be fitted with a suitable cap. 2

3 5. Test Report Manufacturer will inspect or test all cables before delivery and submit the test report as following. Data from optical fiber vender may be used for some test items. (Test ) (Sampling) (Test Method) 5.1 Mode field diameter at 1310nm (100% of fibers) (ITU-T G.650 or equivalent) 5.2 Cladding diameter (100% of fibers) (ITU-T G.650 or equivalent) 5.3 Core concentricity error (100% of fibers) (ITU-T G.650 or equivalent) 5.4 Cladding non-circularity (100% of fibers) (ITU-T G.650 or equivalent) 5.5 Cable cut-off wavelength (100% of fibers) (ITU-T G.650 or equivalent) 5.6 Zero dispersion wavelength (100% of fibers) (ITU-T G.650 or equivalent) 5.7 Zero dispersion slope (100% of fibers) (ITU-T G.650 or equivalent) 5.8 Attenuation at 1310nm (100% of fibers) (ITU-T G.650 or equivalent) 5.9 Attenuation at 1550nm (100% of fibers) (ITU-T G.650 or equivalent) 3

4 Table 1 Optical Fiber Attributes Fiber Type Step Index, Matched Clad type, Single Mode Optical Fiber Core Doped silica Cladding Silica Primary Inner layer UV curable acrylate Coating Outer layer UV curable acrylate Mode field diameter 9.2 ± 0.6 µm at 1310 nm Cladding diameter 125 ± 1 m Core concentricity error Max. 0.6 m Cladding non-circularity Max. 1 % Cable cut-off wavelength Max nm Proof stress Min GPa (equivalent to 1% fiber strain) Zero dispersion wavelength nm Slope at zero dispersion wavelength Max ps/nm2.km Macrobend loss Radius: 30 mm, Number of turns: 100 Max. 0.1 db at 1625nm Coating diameter 245 ± 10 m Colored coating fiber diameter 250 ± 15 m Identification Color coding Table 2. Construction of Loose Tube Optical fiber Number Max. 12 / tube Filling Synthetic gel Tube Plastic material with color coding Color Code Table 4 4

5 Table 3. Construction of Optical Cable Fiber count 72 Spec. The same as Table 2. Loose tube Fiber per tube 12 Number 6 Filler Plastic rod, pipe or appropriate filler(s) if necessary Central strength member FRP (coated with plastic material if necessary) Binder Plastic thread(s) Water blocking element Suitable water absorption material Core covering (*1) Plastic tape(s) or Water blocking tape(s) if necessary Additional strength member (*1) Aramid yarn(s) or Fiberglass yarn(s) if necessary Ripcord Plastic thread(s) Polyethylene, colored black, with one red stripe Width of stripe 5mm, or 15% of cable diameter (except supporting wire) Jacket Thickness of Nominal 1.5 mm jacket Supporting wire 7/1.2 mm Cable core diameter (mm) Nominal 12.0 Cable overall diameter (mm) Nominal 19.0 Cable weight (kg/km) Nominal 185 Structure Fig. 1 * Manufacturer may use additional suitable tape(s), thread(s) and / or filler(s) for manufacturer s reason. ** The nominal value of a parameter refers to a design target. *1 Manufacturer may use suitable core covering or additional strength member if necessary. Order of these layers may change for manufacturer's reason. 5

6 72 fiber cable Supporting wire Optical fiber Filling compound Loose tube Central strength member Water absorption material Binder Core wrapping and/or Additional strength member (if necessary) Rip cord Sheath Stripe Fig. 1 Cross sectional view of Optical Cable Not to scale Table 4. Color Code of Optical Fiber and Loose Tube Color code of optical fiber Color code of loose tube Fiber No. Color code Tube No. Color code 1 Blue 1 Blue 2 Orange 2 Orange 3 Green 3 Green 4 Brown 4 Brown 5 Slate 5 Slate 6 White 6 White 7 Red 8 Black 9 Yellow 10 Violet 11 Rose 12 Aqua 6

7 Table 5. Optical Properties of the Optical Cable 0.36 db/km at 1310 nm 0.36 db/km at 1383 nm Attenuation 0.25 db/km at 1550 nm 0.30 db/km at 1625 nm PMDQ 0.2ps/km(1/2) (*1) after hydrogen aging according to IEC regarding the B1.3 fiber category. Table 6. Mechanical and Environmental Properties of the Optical Cable Storage Temperature range Installation Operation Maximum pulling tension (without supporting wire) Maximum pulling tension (with supporting wire) Min. bending radius degree C degree C degree C 1000 N 5000 N 20 x Cable OD (for dynamic) 10 x Cable OD (for static) 7

8 Table 7. Mechanical and Environmental characteristics of Optical Cable Spec Method Torsion Test* Maximum attenuation change 0.10dB at Tensile Performance Test Impact Test* Repeated Bending Test* Compression Test Water Penetration Test* Temperature Cycling Test Maximum attenuation change 0.10dB at Maximum attenuation change 0.10dB at Maximum attenuation change 0.10dB at Maximum attenuation change 0.10dB at No fluid leakage through the open cable end after 1 hour Max. Attenuation change 0.10 db/km at 1550 nm at operating temperature * The supporting wire may be removed for these tests. TIA/EIA A or IEC E7 Test sample: 2 m Maximum Load: per table 2, EIA A Rotation: 180 degree, 10 cycles IEC E1A Test sample: 25 m Minimum Sheave Dia.: 480 mm (Universal) Load: maximum rated tensile load Duration: 1 hour TIA/EIA B or IEC E4 Starting Energy: depend on cable diameter, per Table 1 EIA/TIA B Number Impact: 25 TIA/EIA A or IEC E6 Sheave Dia.: 20 x cable dia. Number Cycles: 25 Load: per Table 2, EIA/TIA A TIA/EIA A or IEC E3 Load: 2200 N/100mm Duration: 10 minutes TIA/EIA B or IEC F5B Fluid Pressure: 1 m static head or equivalent pressure Test sample: 3 m Duration: 1 hour TIA/EIA-455-3A or IEC F1 Time at Temp.: At least 16 hr., Each Temp. Temp. Range: deg.c Number of Cycles: Not less than 1 cycle - End of - 8