Hebei New Baofeng Wire & Cable Co.,Ltd
Hebei New Baofeng Wire & Cable Co.,Ltd
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Copper Conductor Middle Voltage Power Cable Concentric Neutral Cable 12kv
|
NO. |
ITEM |
UNIT |
DATA |
|
1 |
Name of Manufacturer: |
|
Hebei New Baofeng Wire |
|
& Cable Co.,Ltd. |
|||
|
1.2 |
Country of Manufacturer: |
|
China |
|
2 |
Which type of manufacturing process viz. Continuous Catanery Vulcanisation (CCV) or vertical Catanery Vulcanisation system (VCV) or horizontal MDCV will be used to ensure circularity and concentricity of the extruded layers around the conductor. |
|
CCV |
|
3 |
Type of Cable: |
|
CU/XLPE/CWS/MDPE |
|
4 |
Rated nominal voltage |
kV |
6.9/12 |
|
5 |
Rated Maximum voltage |
kV |
13.2 |
|
6 |
Nominal cross-sectional area of Conductor |
Sq.mm |
70 |
|
7 |
Conductor |
||
|
7.1 |
Material |
|
Copper |
|
7.2 |
Shape & formation |
|
Round |
|
7.3 |
Diameter of conductor |
mm |
10.0 |
|
7.4 |
Dia.Of Single Wire/Number of strands |
mm |
2.17/19 |
|
8 |
Conductor Screen |
|
|
|
8.1 |
Material |
|
semi conductive material |
|
8.2 |
Thickness of semi-conductor screen |
mm |
0.8 |
|
8.3 |
Diameter of Semi-conductor(Approx.) |
mm |
11.6 |
|
9 |
Insulation |
|
|
|
9.1 |
Material |
|
XLPE |
|
9.2 |
Insulation Thickness(Min.Avg.) |
mm |
5.5 |
|
9.3 |
Diameter of Insulation(Approx.) |
mm |
22.6 |
|
10 |
Insulation Screen |
|
|
|
10.1 |
Material |
|
Strippable Semi-conductive material |
|
10.2 |
Insulation Screen Thickness(Nominal.) |
mm |
1.4 |
|
10.3 |
Diameter of insulation screen(Approx.) |
mm |
25.4 |
|
11 |
Metallic Screen: |
||
|
11.1 |
Material |
|
Copper wire |
|
11.2 |
Diameter / thickness of the metallic screen |
mm |
1.29+0.8 |
|
11.3 |
Diameter of the cable across the metallic screen(Approx.) |
mm |
28.2 |
|
12 |
Outer Sheath |
|
|
|
13.1 |
Material |
|
LLDPE |
|
13.2 |
Colour of outer sheath |
|
Black |
|
13.3 |
Outer Sheath Thickness(Nominal) |
|
2.0 |
|
12.4 |
Over Diameter(Approx.) |
|
32.2 |
|
14 |
Conductor Weight |
kg/km |
598 |
|
14.1 |
Total Cable Weight (Approx.) |
kg/km |
1465 |
|
15 |
Minimum Bending Radius |
|
|
|
15.1 |
During Installation |
mm |
600 |
|
15.2 |
Installed |
mm |
500 |
|
16 |
Maximum Pulling Tension |
|
|
|
16.1 |
Of Conductor |
kN |
4.9 |
|
17 |
Continuous current rating under the specified installation and operating conditions. Conductor temperature 90° C , air temperature 35° C . Ground temperature 25° C and depth of laying 1500 mm |
|
|
|
17.1 |
In Air |
Amp |
145 |
|
17.2 |
In Ground |
Amp |
112 |
|
17.3 |
In pipeline |
Amp |
101 |
|
18 |
Maximum value of electric stresses at the conductor screen (Calculation to be shown separately) |
kV/mm |
1.78 |
|
19 |
Maximum value of dielectric stress at the insulation |
kV/mm |
0.92 |
|
20 |
Short circuit capacity of conductor for 1/2/3 second assuming conductor temperature of 90 ° C prior to short circuit and 250 ° C during short circuit |
|
|
|
20.1 |
1.0 Secs |
kA |
10.0 |
|
20.2 |
2.0 Secs |
kA |
7.1 |
|
20.3 |
3.0 Secs |
kA |
5.8 |
|
21 |
Short circuit capacity of metallic screen for 1/2/3 second at screen temperature of 80 ° C prior to short circuit and 200 ° C during short circuit |
|
|
|
21.1 |
1.0 Secs |
kA |
3.3 |
|
21.2 |
2.0 Secs |
kA |
2.4 |
|
21.3 |
3.0 Secs |
kA |
2.0 |
|
22 |
Screen voltage under maximum operating conditions assuming all circuits connected |
kV per km |
0.05 |
|
23 |
TEST |
|
|
|
23.1 |
Maximum D.C. resistance of conductor per km. at 20 degree C. |
Ohm |
0.268 |
|
23.2 |
Maximum A.C. resistance of conductor per km. at 90 degree C. |
Ohm |
0.312 |
|
23.3 |
Maximum electrostatic capacitance per km. of cable. |
μF |
0.187 |
|
23.4 |
Partial discharge at 1.50 Uo |
pc |
≤ 10 |
|
23.5 |
A.C. Enduring Test voltage 2.5U0/ minutes |
kV/mim |
35/5 |
|
23.6 |
D.C.Out sheath Enduring Test voltage |
kV/mim |
7kV/1min |
|
23.7 |
Impulse test voltage |
kV |
110 |
|
24 |
Approximate drum dimension (dia & width) |
mm/mm |
2000*1400 |
|
25 |
Maximum length of cable in a drum (Metres) |
m |
2000 |
|
26 |
Minimum length of cable in a drum (Metres) |
m |
1650 |
|
27 |
Approximate gross weight of cable in a drum |
TON |
2.5 |
|
28 |
Expected Cable life. |
Year |
30 |
Technical assessmnet schedule
Specification for concentric neutral Cable :12kv ,full neutral
|
Description |
Unit |
Manufacturer's Data |
|
1)Design/Test Standards |
|
ICEA S-94-649-2004 |
|
2)Cable Characteristics |
|
copper |
|
Conductor Materials |
mm2 |
70 |
|
Conductor Shield Thickness |
mm |
0.6 |
|
Insulation Material |
|
XLPE |
|
Insulation Shield Thickness |
mm |
1.4 |
|
Concentric Neutral |
No. of Strands/diameter |
32/1.63 |
|
Lay |
|
150mm |
|
Jacket Material |
|
LLDPE |
|
Weight |
kg/m |
1898 |
|
DC Resistance at 20℃ |
Ω/km |
0.268 |
|
3)Marking Provided |
Yes/No |
YES |
|
4)Packaging |
|
|
|
Type of drum |
|
steel |
|
Length of cable/drum |
|
|
1,Cable size and structure of sections
CU/XLPE/CWS/MDPE 1×70mm2 6.9/12(13.2)kV
|
Construction |
Thickness(mm) |
Diameter(mm) |
|
1—— Copper Conductor |
10.0(+0.1,-0.1) |
|
|
2—— Conductor screen |
0.8 |
11.6 |
|
3—— XLPE Insulation |
5.5 |
22.6(+0.5,-0.5) |
|
4—— Insulation screen |
1.4 |
25.4 |
|
6—— copper wire screen +copper tape |
1.29+0.8 |
28.2 |
|
7—— MDPE outer sheath |
2.0 |
32.2(+2.0,-2.0) |
Drum
d1:2000mm
L1:1400mm
500m per drum
H :2000mm
L :2000mm
W:1400mm
Wight: 200 kg