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Fiber Optics Cables

 

Type of Fiber Optics Cables

 

Non-metallic cable used for power line transmission system or wayside , excessive thunder areas and high electromagnetic interface. Its mainly application is for aerial or duct use.
 

Non-Metallic Loose Tube Type Fiber Optics Cable

1. Outer sheath   
2. Ripcord & Water blocking element
3. Peripheral strength element-Aramid yarn
4. Loose tube
5. Colour fibers 
6. Center strength member(CSM)- FRP rod, with oversheathing when needed

 

CSM: Glass fiber reinforced plastic rod(FRP) with oversheathing or water blocking element wrapping could provide efficient tension and anti-water function for cable.
Loose Tube: 6 or 12 fiber per PBT loose tube and filled with a suitable jelly compound.
Filler:Thermoplastic rods, where needed.
Stranding:Loose tubes (and filler), SZ stranded around the CSM.
Longitudinal water tightness : (Option)
 
  The cable is water blocking by using petroleum jelly.
  Water blocking element used for eliminates the need for traditional flooding compound and provides efficient and craft-friendly cable preparation.
Peripheral Strength Element: Aramid yarns is used.
Water Blocking Element: Could be used by requirement(Option).
Ripcord:Nylon thread or Aramid yarn for easily stripping of the sheath.
Outer sheath: Black polyethelene

 

 

 

 

6C~96C,Detail specification as following :
 
1. Construction
 

No. of Fibers

Unit

6

12

18

24

36

48

72

96

Tubes ×Fibers

NO.×C

1×6

2×6

3×6

4×6

6×6

8×6

6×12

8×12

Loose Tube/Filler diameter

mm

2.5

3.1

CSM-Over sheath diameter

mm

2.1

3.0

Sheath thickness

mm

2.0

Cable diameter

mm

17.0

17.4

19.8

20.0

20.4

Cable weight(App.)

kg/m

0.15

0.20

0.20

0.21

0.22

   
2. Application
 

Temperature Range

Minimum Bending Radius

Transportation&Storage: -30~+60℃
Installation: 0~+60℃
Operation: -30~+60℃

Under Maximum Tension : 20×Cable diameter
Without Tension: 10×Cable diameter

   
3. Mechanical and Environmental Characteristics
 

Test

Test Standard

Specified Value

Acceptance Criteria

Tensile Loading and Bending Test

EIA-455-33A

Mandrel diameter: 20D (D = cable diameter) for 150m

Tensile load: 273kgf for 10 minutes
(1) Attenuation Increment≦0.2 dB
(2) No jacket cracking and fiber breakage

 

Cyclic Flexing Test

TIA/EIA-455-104A

Sheave diameter:20D (D=cable diameter)
No. of flexing cycles: 25 cycles

Flexing speed: 30 cycles/minute

Flexing angle: 90°/cycle

Repeated Impact Test

TIA/EIA-455-25B

Height of impact: 150mm
No. of impact cycles: 20 cycles

Cycle speed:30±1 cycle/min.

Cable Twist Test

TIA/EIA-455-85A

Cable length twisted: 4m
No. of twist cycles: 10 cycles for 10 min.

Twist angle: ±180°/cycle

Compressive Loading

Resistance Test

TIA/EIA-455-41A

 

Applied load: 4.54kgf/mm
Duration of loading: 10 minutes
Load length: more than 100 mm

Compressive speed: 2.54 mm/min.

Water Penetration

TIA/EIA-455-82B/

IEC 60794-1-2F5B

Length of specimen: 1m
Height of pressure head: 1m

Test time: 4 hours

No leakage through the open cable end

  This section shall be performed at 1550nm wavelength.
   
4. Optical Characteristics
 
4.1 Maximum Attenuation

Wavelength

Attenuation(dB/km)

1260nm

≦0.45

1310nm

≦0.40

1383nm±3nm

≦0.35

1550nm

≦0.25 (90%)
≦0.30 (100%)

1625nm

≦0.35

   
 
4.2 Chromatic Dispersion

Wavelength

Specification(ps/km-nm)

1260nm

≦6.21

1310nm

≦1.14

1383nm

≦7.05

1550nm

≦18.21

1625nm

≦22.31

   
 
4.3 Polarization Mode Dispersion , PMD

Individual Polarization Mode Dispersion

0.2 ps /√km

Linked Polarization Mode Dispersion,PMDQ

20 Cables(M=20)

0.01% Probability level(Q=0.01%)

0.1ps /√km

   
  4.4 Cut-off Wavelength of Cabled:Less than 1260nm
   
 
4.5 Mode Field Diameter

1310nm

9.0~9.4μm±0.4μm

1550nm

10.0~10.7μm±0.7μm

   
5. Identification
 
5.1 Fiber Colors

Fiber No

1

2

3

4

5

6

7

8

9

10

11

12

Color

Blue

Yellow

Green

Red

Violet

White

Brown

Black

Aqua

Orange

Pink

Grey

   
 
5.2 Loose Tube Colors
1ST Layer

Tube No.

1

2

3

4

5

6

7

8

Color

Blue

Yellow

Green

Red

Violet

White

Brown

Black

   
  5.3 Sheath Color: Black
   
 
5.4 Sheath Marking

PACIFIC 《year of manufacture》《Cable type and fiber count》《length marking in meter》

   
6.

Packing

Metal or Wooden drums with protection.

   
7.

Delivery Lengths

Standard delivery length is 2000 meters.