How to Build a 30 amp or 50 amp / 220v Extension Cord 

I recently needed to extend my Level 2 EV charger to a location just outside of my garage, I was able to build this 30a extension to move the charger right close to the door, and then I could easily feed the J1772 connector under the door to my vehicle!
This is how I built a 220v extension cord, with 10ga wire suitable for 30 amp service. However, the exact same approach would be just fine for a 250v extension cord, or a 50a extension cord, all you would need to change was the gauge of wire used.
This video, including this description, is for ENTERTAINMENT PURPOSES ONLY. Please ensure you have all work completed and inspected by a certified professional.

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