Amazon.com: CircleCord UL Listed 30 Amp 50 Feet RV Extension Cord, Heavy Duty 10 Gauge 3 Wire STW Pure Copper Wire with Grip Handle, TT-30P Male to TT-30R Female with Cord Organizer
Southwire By-the-Foot 10 Black Stranded CU THHN Wire 22973299 - The Home Depot
How many amps can an 18 gauge automotive wire handle? - Quora