1 Introduction
Loose tube construction, tubes jelly filled, elements (tubes and fillers when necessary) laid up around non-metallic central strength member, polyester yarns used to bind the cable core, water blocking tape wrapped the cable core, aramid yarns reinforced, 1 ripcord and PE outer sheath.
2. Characteristics of Optical Fiber
G652D fiber information
Mode field diameter (1310nm): 9.2mm±0.4mm
Mode field diameter (1550nm): 10.4mm±0.8mm
The cut-off wavelength of cabled fiber (lcc): £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)
3. Fiber Color Code
Fiber color in each tube starts from No. 1 Blue.
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
Blue |
Orange |
Green |
Brown |
Gray |
White |
Red |
Black |
Yellow |
Purple |
Pink |
Aqua |
4. Color codes for loose tube & filler rod
Tube color starts from No. 1 Blue. If there are fillers, the color is nature.
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
Blue |
Orange |
Green |
Brown |
Gray |
White |
Red |
Black |
Yellow |
Purple |
Pink |
Aqua |
5. Cable structure and parameter
SN |
Item |
Unit |
Value |
||
1 |
No. of fibers |
count |
12/24 |
36 |
48 |
2 |
No. of fibers per tube |
count |
4 |
6 |
12 |
3 |
No. of elements |
count |
6 |
6 |
6 |
4 |
Tube diameter |
mm |
2.6 |
2.6 |
2.8 |
5 |
FRP diameter |
mm |
2.8 |
2.8 |
3 |
6 |
Inner sheath thickness |
mm |
0.8 |
0.8 |
0.8 |
7 |
Outer sheath thickness |
mm |
1.7 |
1.7 |
1.7 |
8 |
Cable diameter |
mm |
13.2 |
13.2 |
13.9 |
9 |
Cable weight |
kg/km |
144 |
147 |
158 |
10 |
MAT (Max. Allowable Working tension) |
N |
3600 |
3600 |
4000 |
11 |
Short term crush |
N/100mm |
2200 |
||
12 |
Max Span |
m |
100 |
||
13 |
Ice thickness |
mm |
0 |
||
14 |
Wind speed |
Km/h |
20 |
6. Characteristic of Optical Cable
6.1 Min. bending radius for installation
Static: 10 x cable diameter
Dynamic: 20 x cable diameter
6.2 Application temperature range
Operation: -20℃ ~ +70℃
Installation: -10℃ ~ +60℃
Storage/transportation: -20℃ ~ +70℃
6.3 Main mechanical & environmental performance test
Item |
Test Method |
Acceptance Condition |
Tensile StrengthIEC 60794-1-2-E1 | - Load: Max. Allowable Working tension- Length of cable: about 50m- Load time: 1min | - Fiber strain £ 0.33%- No fiber break and no sheath damage. |
Crush TestIEC 60794-1-2-E3 | - Load: Short term crush- Load time: 1min | - Loss change £ 0.1dB@1550nm- No fiber break and no sheath damage. |
Loose Tube ADSS Fiber Optic Cable Data Sheet.pdf