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 Fiber Optic Cable
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Product Name/Code : Overhead Powe Ground Wire (OPGW) Fiber Cable
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Construction
Physical Properties
Cable section
(mm2) |
Nominal Outer Diameter
(mm/in) |
Nominal Weight(kg/km)(lb/kft) |
Max working tension(kN) |
Modulus of clasticity(kN/mm2) |
Heat expansion coefficient(10-6/℃) |
DC Resistance
(Ω/km) |
Short-circuit current capacity
(kA2s) |
35 |
8.1/0.318 |
250/167.79 |
45.2 |
162.0 |
13.0 |
2.433 |
8.9 |
50 |
9.6/0.378 |
343/230.20 |
63.0 |
162.0 |
13.0 |
1.743 |
16.5 |
70 |
11.4/0.448 |
487/326.85 |
89.3 |
162.0 |
13.0 |
1.237 |
3.04 |
90 |
12.5/0.492 |
368/246.98 |
58.2 |
94.1 |
17.3 |
0.473 |
72.7 |
105 |
13.5/0.531 |
428/287.25 |
67.9 |
94.1 |
17.3 |
0.403 |
98.8 |
130 |
15.0/0.590 |
527/353.69 |
83.8 |
94.1 |
17.3 |
0.329 |
149.9 |
* The effective sectional area of the single-layer design ranges from 50mm2 to 83mm2, suitable for rated voltages of 66kV, 115kV, 150kV, 250kV and 275kV. * The effective sectional area of the double-layer design ranges from 90mm2 to 200mm2, suitable for rated voltages of 150kV, 250kV, 275kV, 380kV and 500kV. * The effective sectional area of the three-layer design ranges from 200mm2 to 400mm2, suitable for rated voltages of 380kV, 420kV and 500kV in European markets.
Mechanical Properities
| Minimum Bending Radius: |
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Maximum Compressive Load: |
4000N for unarmoured |
| Under installation: |
20×OD |
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6000N for armoured |
| During operation |
10×OD for unarmoured cables |
Repeated Impact: |
4.4 N.m (J) |
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20×OD for unarmoured cables |
Twist (Torsion): |
180×10 times, 125×OD |
| Temperature Range: |
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Cyclic Flexing: |
25 cycles for armoured cables. |
| Operating Temperature Range: |
-40℃(-40℉) to +70℃(+158℉) |
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100 cycles for unarmoured cables. |
| Storage Temperature Range: |
-50℃(-58℉) to +70℃(+158℉) |
Crush Resistance: |
220N/cm (125lb/in) |
Fiber Compliance
Temperature Cycling
Tensile Strength
Crush
Impact
Repeated Bending
Torsion
Kink
Cable Bend
Cool Bend |
IEC60794-1-2-F2
IEC60794-1-2-E1A
IEC60794-1-2-E3
IEC60794-1-2-E4
IEC60794-1-2-E6
IEC60794-1-2-E7
IEC60794-1-2-E10
IEC60794-1-2-E11
IEC60794-1-2-E11 |
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Standard Compliance
IEEE1138-1994
Features
• Colored coded fibers and binders for quick and easy identification during installation.
• Compact design results in excellent sag tension performance of the cable
• Aluminium-clad steel wires and Aluminium alloy wires provides mechanical strength to withstand the installation and operating conditions, while achieving conductivity required to control temperature rise, during the short circuit fault condition
• Optical unit placed inside the Aluminium tube provides exceptional mechanical and thermal protection for the fiber against severe environments and external lateral force.
• Thick walled Aluminium tubes provide hermetic seal for optical units, providing excellent crush resistance and low resistivity.
• Unique design has maximum allowable tension to control fiber strain
• Stranded wires used for optimizing the mechanical and electrical properties of the cables
• High load, long span capability. |
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