Pure Copper vs Copper Clad Aluminium (CCA): What's The Difference?
TOWERGUARD CCA® 2kV (UL) RHH or RHW-2 Copper Clad Aluminum Conductor/90°C Wet or Dry For Cable Tray Use - Sunlight Resistant - For Direct Burial U.S. Patent No. 8,618,688 On American Wire Group
CCA Wire VS OFC Wire: What's The best choice? - ProLine-X