In pipeworks theres a conducting tube that can send Mesecon signal made this way.
{plastic_sheet,plastic_sheet,plastic_sheet]
{mesecon,mesecon,mesecon ]
{plastic_sheet,plastic_sheet,plastic_sheet]
My idea would be to make a tube that can send EU's through it, crafting example.
{plastic_sheet,plastic_sheet,plastic_sheet]
{LV_cable, ,LV_cable]
{plastic_sheet,plastic_sheet,plastic_sheet]
And use LV, MV, or HV cable.