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Reference.org
Copper-clad aluminium wire
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<p>Copper-clad aluminium wire (CCAW or CCA) is a dual-metal <a href="/facts/Electrical_conductor/BSuyupLP">electrical conductor</a> composed of an inner <a href="/facts/Aluminium/7wmR8jYE">aluminium</a> core and outer <a href="/facts/Copper/I8PEE8oX">copper</a> <a href="/facts/Cladding_(metalworking)/CSJnnb4g">cladding</a>. </p>