How is a oversize wire a fire hazard? It’s only a fire hazard when you have the improper breaker. (Example: 30 amp breaker on a 14+ Gauge wire.)
Your allowing more juice without increasing the wire size, will cause excess heat, especially in wire bend areas.
The biggest issue this dude will have besides 220 being too much for a outlet to handle, the wire size won’t fit on a generic outlet. 6 gauge wire won’t fit on a 15 or 20 amp outlet. Max size is 10 Guage on standard outlets.
I’m not a electrician, but I play one on TV.
