The FR-N20XA8E-AR Cables (aluminium) and FR-N20XA8E-R Cables (copper) are manufactured in accordance with NF-C33-226 - a commonly specified French Normes cable, designed for primary and secondary power distribution. The Medium Voltage cables listed (also referenced as HTA cables in France) have a rated voltage of 12/20kV. The cables with a rated voltage of 18/30kV are referenced with the prefix FR-N30. 

NF C 33-266 Cables