For the connection of light electrical appliances (radios, table lamps, clocks, etc.) with very low mechanical stresses in households, as far as this is permitted in the relevant appliance regulations. The cable can also be used as a loudspeaker cable. The cable is not suitable for connecting cooking and heating appliances or for outdoor use. CCA designates bi-metallic single and multi-core cables with copper-clad aluminium core for higher-frequency applications. Explanation of specification: The so-called skin effect or current displacement is a physical phenomenon caused by higher-frequency alternating currents. The current density inside the conductor becomes lower with increasing frequency than that on the outer surface.