1. APPLICALBE STANDARDS


The cable which Beijing Huayuan offered shall be designed, manufactured and tested according to international standards as follows:






Quality Control Standard






ISO 9001




Quality Management Systems






ISO 14001




Environmental Management Systems






Component Material Standard






IEC 60228




Conductors of insulated cables






Cable Standard






IEC 60502-2




Power cables with extruded insulation and their  accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV)


Part 2:Cables for rated voltages from 6 kV (Um = 7,2 kV)


up to 30 kV (Um = 36 kV)






IEC 60811




Insulating and sheathing materials of electric


and optical cables - Common test methods






 


CABLES STRUCTURE  for  1C*300 mm2 Cable





AL/XLPE/CTS/PVC/AWA/PVC 19/33(36) kV  1C* 300 mm2






Construction




 


Nominal Thickness(mm)




Nominal Diameter(mm)






1--- Conductor(Aluminum)




 




20.5






2----Conductor screen




0.8




22.1






3--  XLPE insulation




8.0




38.1






4--- Insulation screen




0.6




39.3






5--- Copper tape screen




0.12




39.7






6--- Warping tape




0.2




40.3






7--- PVC inner sheath




1.4




43.1






8--- Aluminum wire armour




2.5




48.1






9--- Warping tape




0.2




48.7






10---PVC Outer sheath




2.6




53.9







3.Guaranteed Technical Particulars


33 kV, 300 SQ.MM. SINGLE CORE XLPE CABLE


 






SN




Description




Unit




Offer






1




Name of Manufacturer 




 




Beijing Huayuan 






2




Country of origin




 




CHINA






3




voltage grade




kV




19/33






4




Max. conductor temperature




 




 






4.1




Continuous




   




90






4.2




Short Time









250(not exceed 5s)






5




CONDUCTOR




 




 






5.1




Material




 




Aluminum (Circular compact stranded ,Class B)






5.2




Size




mm2




300






5.3




Nos. & Diameter of wire in each Conductor (Before Stranding )




Nos./mm




37/3.28






6




SHIELDING ON INSULATION (Non Metallic )




 




 






6.1




Material




 




Semi-conductive XLPE compound






6.2




Thickness




mm




0.6(nominal)






7




INSULATION




 




 






7.1




Material




 




XLPE






7.2




Thickness




mm




8.0(nominal)






7.3




Calculated Dia Over insulation




mm




38.1(nominal)






8




INNER SHEATH




 




 






8.1




Material




 




PVC






8.2




Thickness




mm




1.4(nominal)






8.3




Extruded




Yes/No




YES






8.4




Calculated outside dia. over sheath




mm




43.1(nominal)






9




ARMOURING




 




 






9.1




Material




 




Aluminum wire






9.2




Size of Armour Wire




mm




2.5(nominal)






9.3




Calculated dia. over armour




mm




48.1(nominal)






10




OVERALL SHEATH




 




 






10.1




Material




 




PVC






10.2




Thickness




mm




2.6






11




Net weight of Cable




Kg/km




2990






12




CONTINUOUS CURRENT RATING FOR STANDARD IS CONDITION LAID DIRECT (Cable Solid Bonded)




 




Air temperature 40 C    and   , 1 circuit ,phase spacing  1 time cable outer diameter, trefoil formation, depth  of laying 800 mm ,thermal resistivity of soil 1.0 k.m/W,soil temperature 25,pipeline inner/outer diameter 90/100mm.






12.1




In Ground




A




512






12.2




In Duct




A




475






12.3




In Air




A




553






13




Short Time Current  rating for 1 Sec




kA




28.2( Of conductor)






14




DC Resistance at 20




Ohm/km




0.1 (of conductor)






15




ELECTRICAL PARAMETERS AT MAX. OPERATING TEMPERATURE




 




 






15.1




AC Resistance




Ohm/km




0.129






15.2




Reactance at 50 c/s




Ohm/km




0.162






15.3




Impedance




Ohm/km




0.139






15.4




Capacitance




mF/km




0.000245






16




Recommended minimum bending radius x Overall Dia.




mm




810






17




Standard Specification to Which Cable manufacture and tested




 




IEC 60502  IEC 60228  IEC 60811






 



4.TEST REQUIREMENTS FOR MV Power Cables


The cable testing shall be conducted in accordance with applicable standard of 33 kV Power Cables. The following test items shall be carried out in accordance with relevant IEC60502-2  standards.






No.




Test item






Routine tests






1




measurement of the electrical resistance of conductors






2




Partial discharge test






3




Voltage test






Sample tests






1




conductor examination






2




check of dimensions






3




Voltage test for 4 h






4




Hot set test for XLPE insulation






 



5. PACKING PARTICULARS FOR 33kV Power Cables


The cables shall be wound on steel-wooden drums. The indelible marking shall be printed on the surface of drum flange in accordance with customer requirements.


 


 


 






Cable Type




Drum length(m)




Drum Dimensions (mm)






d1




d2




L2




L1






AL/XLPE/CTS/PVC/AWA/PVC-19/33kV-


1C*300mm2




700




2200




1100




940




1100






Note: The value [D" shall not contain the dimension of sealing plates.


Factory and Equipment











Package:





Honor:



http://www.bjhygkcable.com