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Single Core XLPE Insulated Power Cable

Single Core XLPE Insulated Power Cable

single core XLPE Insulated power cable functions well for electricity transmission and distribution lines for its excellent electrical and physical properties

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Product Details

item name:single core XLPE Insulated power cable


Application


single core XLPE Insulated power cable functions well for electricity transmission and distribution lines for its excellent electrical and physical properties, including the advantage of simplicity in construction, lightness in weight; convenience in application besides its excellent electrical, thermal, mechanical and anti-chemical corrosion properties. Laying indoors, in tunnel, fixed on the bracket, pipe and buried in the soil, the cable cannot bear external mechanical forces.

Standard


IEC60502,IEC 60228,IEC60332, BS 5467, BS 6622, IS 1554, IS 7098 and ICEA S-66-524 etc. 

Product Range


Rated voltage: 3.6/6(7.2)kV,6/6(7.2)kV, 6/10(12)kV, 8.7/10(12)kV 
No. of Cores: single core
The ambient temperature for installation: ≥0ºC
Max. conductor temperature in normal operation:≤90ºC
Max. operating temperature of conductor when cable short-circuited (5s maximum duration): 250ºC

Construction


Conductor: Stranded aluminium conductor to IEC60228 class 2
Conductor Screen: Extruded semi-conductive compound
Insulation: XLPE (cross-linked polyethylene) rated at 90°C 
Insulation Screen: Extruded semi-conductive compound
Metallic Screen: copper tape or a concentric layer of copper wires
Inner Sheath: Extruded PE
Outer Sheath: PE

Main Technical Parameters
 

single core XLPE Insulated power cable

Nominal Section Area of Aluminum Conductor
(mm2)
Max. Permissible D.C. Resistance of Conductor at 20ºC (Ω/km) Maximum Permissible Short-circuit Current for Conductor (1s) (kA)
1.5-0.13
2.512.10.22
47.410.34
64.610.51
103.080.99
161.911.56
251.202.42
350.8683.37
500.6414.79
700.4436.68
950.3209.03
1200.25311.4
1500.20614.2
1850.16417.5
2400.12522.6
3000.10028.2
4000.077837.65
5000.060547.0
6300.046958.0

 

single core XLPE Insulated power cable

Nominal Section Area of Aluminum Conductor (mm2)Rated Voltage (kV)
3.6/66/6
6/10
8.7/10
8.7/15
12/2018/3021/3526/35
Capacitance for Each Phase (μF/km)
250.24230.19220.1576----
350.26840.21160.17250.1502---
500.30220.23670.19170.16610.13630.12390.1150
700.34620.26930.21670.18680.15080.13650.1263
950.38750.29990.24000.20600.16430.14830.1368
1200.42360.32660.26030.22280.17600.15840.1460
1500.46470.35700.28340.24180.18930.17000.1563
1850.50590.38730.31230.26560.20600.18150.1665
2400.54300.42900.34390.29160.22070.19720.1805
3000.55890.47060.37550.31750.23870.21280.1945
4000.59400.53110.42130.35510.26480.23540.2146
5000.61670.58390.46130.38800.28760.25510.2321
6300.68480.64810.50990.42780.31510.27890.2333


(2)single core XLPE Insulated power cable

Nominal Section Area of Aluminum Conductor (mm2)Rated Voltage (kV)
3.6/66/6
6/10
8.7/10
8.7/15
12/2018/3021/3526/35
Inductance (MH/km)
250.59540.61430.6474----
350.57530.59320.62480.6390---
500.55430.57110.60110.61450.65010.66750.6751
700.53570.54860.57650.59190.62520.63940.6467
950.51720.53180.56080.57260.60430.61800.6279
1200.50590.51970.54730.55860.58910.60510.6118
1500.49490.50790.53410.54490.57400.58950.5959
1850.48850.50060.52520.53540.56400.57600.5839
2400.47900.48900.51430.52160.54870.56150.5677
3000.47490.48180.50320.51020.53760.54840.5540
4000.46600.47020.49270.49910.52190.53430.5395
5000.46000.46190.48480.49070.51280.52240.5272
6300.45470.45630.47480.48270.50120.51010.5161

Note: S-The distance between the two adjacent cable center, D-The overall diameter of the cables.

3. The Laying of the Cable Ampacity Correction in Different Environments
(1) Rating factors of current rating for ambient temperature:

Ambient Temperature20ºC25ºC30ºC35ºC40ºC45ºC50ºC
Rating Factors1.181.141.101.051.00.950.89

(2) Directly buried into ground
a) When the single core cables are installed separately, the distance between the cables is 2 times of the cable's diameter.
b) Ambient temperature: 25ºC
c) Soil thermal resistivity: 1.0ºC.m/W
d) Depth: 0.7m
e) Rating factors under different ambient temperature

Ambient Temperature15ºC20ºC25ºC30ºC35ºC40ºC45ºC
Rating Factors1.071.041.000.960.920.870.83

f) The correct coefficients of ground thermal resistivity

Thermal Resistive ºC.m/W 0.60.81.01.21.41.62.0
Rating Factors1.171.081.000.940.890.840.77

Current Rating Conditions: 
Ground Temperature: 25°C  
Ambient Temperature (air): 30°C 
Depth of Soil: 0.8 m  
Thermal Resistance of Soil: 1.0ºC.m/W


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