N2xsby Factory Price High Voltage XLPE Underground Single Core Power Cable
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12/20kV Power Cables Single Core Cables to IEC 60502 Standards
IEC 60502 Part 2
12/20kV Power Cables Single Core Cables to IEC 60502 Application
The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.
12/20kV Power Cables Single Core Cables to IEC 60502 Construction
Conductor: Plain annealed copper or aluminium complying with IEC 60228 class 1 or 2.
Conductor Screen: extruded layer of semi-conducting cross-link compound
Insulation:XLPE
Insulaton Screen: extruded layer of semi-conducting cross-link compound
Metallic Screen:Copper tape or Copper wire with helical copper tape screen
Separation Sheath (for armoured cable): The separation sheath comprises a layer of extruded PVC, PE or LSZH, applied under the armour .
Lapped Bedding : The lapped bedding consists of Polyester non woven fabrics .
Armour (for armoured cable): The armour consists of Galvanized steel Tape Armour.
Outer Sheath: PVC, PE or LSZH can be offered as an option
Installation and operation condition of cable
Operating Temperature: up to 70°C (PVC insulation); up to 90°C (XLPE or EPR insulation)
Short Circuit Temperature( 5 seconds maximum duration ): 140-160°C (PVC insulation);
250°C (XLPE)
Bending Radius: 12 x OD
Current Rating Conditions:
Ground Temperature: 20°C
Ambient Temperature (air): 30°C
Depth of Soil: 0.8m
Thermal Resistance of Soil: 1.5K•m/W
Rated Voltage Uo/U | Operating Voltage (Um) | Testing Voltage (rms) |
12/20kV | 24KV | 42KV |
12/20kV N2XSB(AL)Y Power Cables Single Core Cables Dimensional Data:
Nom. Cross Section Area |
Overall Diameter |
Cable Weight |
|
approx. |
approx. |
mm² |
mm |
kg/km |
35 |
29 |
1,172 |
50 |
30 |
1,281 |
70 |
31.5 |
1,554 |
95 |
33.5 |
1,884 |
120 |
35.5 |
2,173 |
150 |
37 |
2,483 |
185 |
38.5 |
2,839 |
240 |
41 |
3,441 |
300 |
43.5 |
4,076 |
400 |
47 |
5,011 |
500 |
50.5 |
6,131 |
630 |
54 |
7,580 |
N2XSB(AL)Y 1 x (35-630) mm² 12/20kV Electrical Data:
Conductor |
||
Nom. Cross Section Area |
DC Resistance at 20°C |
AC Resistance at 90°C |
|
|
|
(mm²) |
Max. |
Max. |
35 |
0.524 |
0.668 |
50 |
0.387 |
0.494 |
70 |
0.268 |
0.342 |
95 |
0.193 |
0.247 |
120 |
0.153 |
0.196 |
150 |
0.124 |
0.159 |
185 |
0.0991 |
0.127 |
240 |
0.0754 |
0.098 |
300 |
0.0601 |
0.079 |
400 |
0.047 |
0.063 |
500 |
0.0366 |
0.05 |
630 |
0.0283 |
0.041 |
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