gs power 16 gauge wire – automotive electrical spool, 10 x 100ft rolls of copper-clad aluminum primary wires for car stereo & remote trailer wiring gs power <b> copper clad aluminum (cca) wires do not follow the american wire gauge standard (awg). </b> <br> awg is developed for electrical resistance classification of oxygen free copper (ofc) wires. high current application specifying awg standard assumes the wire is ofc. <br> same conductor area cca has higher resistance than ofc making awg classification invalid. <br> cca wires are developed for low current applications (e. g. signal processing). as a rule of thumb, reduce cca gauge size by 2 to achieve similar electrical resistance as ofc wires. <br> for selection of ofc wires using awg standards, visit <b> www.amazon.com/gspower </b>