12/20 18/30 Kv Medium Voltage Overhead Covers Conductors Thick (CCT) - Cables
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Product Description
12/20 18/30 kv Medium Voltage Overhead Covers Conductors Thick (CCT) – Cables
Medium Voltage Overhead Covers Conductors Thick Application
Medium Voltage Overhead Covers Conductors Thick (CCT) – Cables used in power supply in power transmission and distribution line.
Overhead single core cables with aluminum alloy conductor and XLPE insulation, for overhead power transmission and distribution lines up to 20 K & 33 KV. The Covered Conductor Thick (CCT) system, although not a touch-safe screened cable system, is designed to provide protection from initiation of flash-overs due to clashing of conductors, bird or animal incursions, and tree branches or debris which has blown or fallen on to the line , specially in Weather conditions pollution.
ENGINEERING SPECIFICATIONS
Standard EN 50397-1
Rated Voltage 12/20 or 18/30 kv
Conductor stranded aluminum alloy wire(AAAC) or ACSR.
Core the conductor is insulated with a layer of extruded XLPE .
Sheath over the insulated core is applied an outer protecting layer of extruded HDPE compound.
Operating temperature 90°c continues normal operation
| Rated voltage | 12/20kV, 18/30kV |
|---|---|
| Conductor | aluminium |
| Insulation | XLPE. |
| Color | Black |
Medium Voltage Overhead Covers Conductors Thick Dimensions
|
Description of property |
Unit of measurement |
Amounts/Specifications |
||||||||||||
|
|
|
All Aluminum Alloy Conductors (AAAC) |
Aluminum conductor steel reinforced (ACSR) |
|||||||||||
|
Size |
mm2 |
70 |
120 |
185 |
MINK |
HYENA |
WOLF |
|||||||
|
Conductor Construction |
N x mm |
7×3.75 |
19×2.95 |
19×3.50 |
ST 1×3.66 AL 6×3.66 |
ST 7×1.93 AL 7×4.39 |
ST 7×2.59 AL 30×2.59 |
|||||||
|
Cross Section |
mm2 |
77.3 |
129.9 |
182.8 |
73.6 |
126.4 |
194.9 |
|||||||
|
Conductor diameter (compacted) |
mm |
10.69 |
14.01 |
16.63 |
10.21 |
13.55 |
16.86 |
|||||||
|
Covering type |
– |
XLPE / Black HDPE |
||||||||||||
|
Tensile Strength |
KN |
21.67 |
36.39 |
51.23 |
20.59 |
38.86 |
65.46 |
|||||||
|
Electrical Resistance at 20ºC |
Ohm/km |
0.4467 |
0.2674 |
0.1900 |
0.4767 |
0.2843 |
0.1920 |
|||||||
|
Rated voltage |
kV |
20 |
33 |
20 |
33 |
20 |
33 |
20 |
33 |
20 |
33 |
20 |
33 |
|
|
Covering Thickness (two Layers) |
Min |
mm |
5.5 |
8.0 |
5.5 |
8.0 |
5.5 |
8.0 |
5.5 |
8.0 |
5.5 |
8.0 |
5.5 |
8.0 |
|
|
Max |
mm |
6.2 |
9.1 |
6.2 |
9.1 |
6.2 |
9.1 |
6.2 |
9.1 |
6.2 |
9.1 |
6.2 |
9.1 |
|
|
Min at place |
mm |
4.85 |
7.10 |
4.85 |
7.10 |
4.85 |
7.10 |
4.85 |
7.10 |
4.85 |
7.10 |
4.85 |
7.10 |
|
HDPE Thickness |
Min |
mm |
1.1 |
1.6 |
1.1 |
1.6 |
1.1 |
1.6 |
1.1 |
1.6 |
1.1 |
1.6 |
1.1 |
1.6 |
|
|
Max |
mm |
1.6 |
2.2 |
1.6 |
2.2 |
1.6 |
2.2 |
1.6 |
2.2 |
1.6 |
2.2 |
1.6 |
2.2 |
|
Overall Diameter |
Min |
mm |
21.6 |
26.6 |
24.8 |
29.8 |
27.5 |
32.5 |
21.1 |
26.1 |
24.5 |
29.5 |
27.8 |
32.8 |
|
|
Max |
mm |
23.2 |
29.0 |
26.4 |
32.2 |
29.1 |
34.9 |
22.7 |
28.5 |
26.1 |
31.9 |
29.4 |
35.2 |
|
Mass per Unit Length |
Kg/km |
484 |
672 |
682 |
895 |
867 |
1100 |
514 |
698 |
758 |
967 |
1076 |
1311 |
|
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