TECHNICLA DATA SHEET FOR 24 kV 3C 240 SQmm
POWER CABLE





NO.


ITEM 


UNIT


DATA




1


Name of Manufacturer:





Beijing Huayuan Gaoke




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: 





AL/XLPE/PE 




4


Rated nominal voltage 


kV


12/20




5


Rated Maximum voltage


kV


24




6


Nominal cross-sectional area of Conductor


Sq.mm


240




7


Conductor




7.1


Material 





Aluminum 




7.2


 Shape & formation 





Round 




7.3


 Diameter of conductor  


mm


18




7.4


Dia.Of Single
Wire/Number of strands 


mm


3.0/36




8


Conductor Screen 







8.1


Material 





semi conductive material




8.2


Thickness of semi-conductor 
screen


mm


0.6




8.3


Diameter of Semi-conductor(Approx.)


mm


19.2




9


Insulation 







9.1


Material 





XLPE




9.2


Insulation
Thickness(Min.Avg.) 


mm


5.5




9.3


Diameter of
Insulation(Approx.) 


mm


30.2




10


Insulation Screen 







10.1


Material 





Semi-conductive material




10.2


Insulation Screen Thickness(Approx.)


mm


0.8




10.3


Diameter of
Insulation screen (Approx.) 


mm


31.8




11


 Metallic Screen: 




11.1


Material 





Aluminum wire 




11.2


Diameter of the
Aluminum screen 


mm


3.34




12


Filler 







12.1


Material 





Semi-conductive filler 




12.2


Diameter of Laid-Up
Core 





68.7




13


Longitudinal water
tightness 







13.1


 Material 





Waterproof rope 




13.2


Approximate t diameter 


mm


3




14


Cross sectional
water tightness 







14.1


Material 





PE laminated AL type 




14.2


 Thickness(Nominal) 





0.2




14.3


Diameter over the cross sectional water tightness layer
(Approx.) 





69.9




15


Outer sheath 










15.1


Material 





PE




15.2


Outer Sheath
Thickness(Nominal) 


mm


3.5




15.3


Over Diameter(Approx.) 


mm


76.9




16


Conductor Weight 


kg/km


1955




17


Total Cable Weight (Approx.)


kg/km


5450




18


Minimum Bending Radius 







18.1


During Installation 


mm


950




18.2


Installed 


mm


750




19


Maximum Pulling
Tension 







19.1


Of Conductor 


kN


28.8




20


 Continuous current rating
under the specified installation and operating conditions.    Conductor temperature 90 C    . Ground    temperature 35 C    and   
depth    of laying 1500 mm










20.1


In Air 


Amp


465




20.2


In Ground 


Amp


321




20.3


In pipeline 


Amp


289




21


Maximum value of electric stresses at the conductor screen
(Calculation to be shown separately) 


kV/mm 


2.67




21.1


Maximum value of dielectric stress at the insulation 


kV/mm 


1.75




22


Short circuit capacity of conductor for 1/2/3    second assuming    conductor temperature of 90 C prior to short    circuit and 200 C during short circuit










22.1


1.0 Secs 


kA


24.1




22.2


2.0 Secs


kA


17.5




22.3


3.0 Secs


kA


14.6




23


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










23.1


1.0 Secs 


kA


3.2




23.2


2.0 Secs


kA


2.3




23.3


3.0 Secs


kA


1.9




24


Screen voltage under maximum operating conditions assuming all
circuits connected


kV per km


0.05




25


TEST










25.1


Maximum D.C. resistance of conductor  per km. at 20 degree C. 


Ohm


0.125




25.2


Maximum A.C. resistance of conductor per km. at 90 degree C. 


Ohm


0.161




25.3


 Maximum electrostatic capacitance per km. of cable. 


F


0.283




25.4


Partial discharge at
1.50 Uo 


pc


10




25.5


A.C.  Enduring Test voltage
3.5U0/ min


kV/mim


May-42




25.6


D.C.Out
sheath  Enduring Test voltage 


kV/mim


5kV/1min




25.7


Impulse test voltage 


kV


120




26


Approximate drum dimension (dia & width)


mm/mm


2500*1400




27


Maximum length of cable in a drum (Metres)


m


510




28


Minimum length of cable in a drum (Metres)


m


500




39


Approximate
gross weight of cable in a drum 


TON


2000




30


Expected Cable life.


Year


30











Cable size and structure
of sections











AL/XLPE /PE 12/20 (24) kV   3240AL35mm2






Construction 




Thickness(mm)




Diameter(mm)






1 --- ALuminum Conductor 




 




 18.0(0.1,-0.1)






2 --- Conductor screen 




0.6




 19.2






3 --- XLPE insulation 




5.5




 30.2(+0.5,-0.5)






4 --- Insulation screen 




0.8




 31.8






5 --- Aluminum wire screen 




3.34




 






6 --- Semi-conducive filler 




 




68.7






7 --- Longitudinal water tightness 




3.0




 






8 --- PE laminated AL type 




0.2




 69.9(+1.5,-1.5)






9--- PE outer sheath PE




3.5




 76.9(+2.0,-2.0)










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