close up of an electric system on white background, in a white background

blue brown cable cablejacket cabling closeup code color connection construction copper copperwire cord crosssection current earth elctricalcable electric electrical electricalcord electricalwiring electricity energy equipment flexible green ground iec industrial industry infrastructure insulation isolated jacket line link macro media neutral photo plastic power powersupplycable spool standard stranded stripped strippedwire supply swirl