| Cable Cross-section |
| Cable Specification |
1. Introduction
Loose tube construction, tubes with jelly filled, elements (tubes and filler rods when necessary) laid up around metallic central strength member, filling compound filled in the apertures of the cable core, aluminum tape and PE inner sheath, then steel tape armored and PE outer sheath.
2. 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 |
3. Color codes for loose tube
Tube color starts from No. 1 Blue.
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
Blue |
Orange |
Green |
Brown |
Gray |
White |
Red |
Black |
4. Cable structure and parameter
|
Item |
Unit |
Value |
|||||
|
No. of fibers |
count |
4 |
12 |
24 |
48 |
72 |
96 |
|
No. of fibers per tube |
count |
4 |
6 |
6 |
12 |
12 |
12 |
|
No. of elements |
count |
6 |
6 |
6 |
5 |
6 |
8 |
|
Cable diameter(±5%) |
mm |
11.6 |
11.6 |
11.6 |
12.1 |
12.8 |
14.6 |
|
Cable weight(approx.) |
kg/km |
138 |
140 |
142 |
150 |
180 |
118 |
|
Short term tension |
N |
3000 |
|||||
|
Short term crush |
N/100mm |
3000 |
|||||
| Characteristics of Optical Cable |
1. Min. bending radius
Static: 12.5 x cable diameter
Dynamic: 25 x cable diameter
2. Application temperature range
Operation: – 30℃ ~ +70℃
Installation: – 15℃ ~ +50℃
Storage/transportation: – 30℃ ~ +70℃
3. Main mechanical & environmental performance test
|
Item |
Test Method |
Acceptance Condition |
|
Tensile Strength IEC 60794-1-2-E1 |
– Load: Short term tension – Length of cable: about 50m – Load time: 1min |
– Fiber strain £ 0.6% – No fiber break and no sheath damage. |
|
Crush Test IEC 60794-1-2-E3 |
– Load: Short term crush – Load time: 1min |
– Loss change £ 0.1dB@1550nm – No fiber break and no sheath damage. |
| Characteristics of Optical Fiber |
G652D fiber information
|
Mode field diameter (1310nm) |
9.2mm±0.4mm |
|
Mode field diameter (1550nm) |
10.4mm±0.5mm |
|
Cladding diameter |
125mm±1.0mm |
|
Coating diameter |
245mm±7mm |
|
Cladding coating concentricity error |
£12mm |
|
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 |
|
Zero dispersion wavelength |
1300nm-1324nm |
|
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) |
