Review on Enhancing Connections with NA Additional External Welding Connector by Ray Sheptock

If you have an electric car and a NEMA 10-30P dryer outlet, this is the adapter you need. Most electric vehicle chargers will not work without a ground wire. Sockets 10-30P have no ground, so simple 10-30P to 14-50P will not work. This adapter has a separate ground wire that easily connects to the ground of a standard 120V outlet.