It's unlikely to be both an arc flash and electrocution, and to survive for any length of time. Electricity powerful enough to cause an arc flash would instant

It's unlikely to be both an arc flash and electrocution, and to survive for any length of time. Electricity powerful enough to cause an arc flash would instantly kill if it went through a body. It was more likely a tool shorted two conductors, and the arc flash harmed them, but no electricity went through them.