For HV cable, there is a thin layer of semiconductor (black)outside the insulation, and outside the semiconductor is another lay of screen(normally copper). This screen is always grounded in any IT or TN system. (It may not have this screen for UL cable). The cable is marked Uo/U. (U=1.732*Uo)...
Normally for HV cable, there is a grounded screen outside the cord insulation. Does it have any phase to phase rating?
For the 6K/10KV rating cable, can I use it to carry 10KV?