Aluminium Screen instead of Copper Screen in Power Cables?

[Rejeckted]

Dear all,

Generally we use Copper Screens/Copper Tape in XLPE Insulated Cables to meet the fault current. Can it be replaced with Aluminium Screen?

By screening I mean round wire of Aluminium since for 1C Cables we already use Al Armour. So why not use it for screening purpose in 1C and 3C Cables aswell?

Thanks
Chris

 

[7anoter4]

The main construction international standards allowed use of aluminum shield.
IEC 60502-2 is not forbidding.
UL 1075 allows.
Since the price difference is negligible in order to offer possibility of increasing the short-circuit withstand current and avoid contact corrosion, I think a lot of manufacturers prefer copper instead of aluminum.