No, there is no documented case of someone surviving an execution by electric chair.
The electric chair is designed to deliver a lethal dose of electricity, causing rapid heart failure and respiratory arrest. The process involves attaching electrodes to the condemned individual, typically on the head and leg, and delivering a high-voltage current. This current disrupts the electrical impulses in the body, leading to immediate and irreversible damage to vital organs.
While there have been instances of botched executions, such as prolonged periods of suffering or the failure of the chair to deliver the intended voltage, these cases still resulted in death.
The electric chair has been used in the United States since the late 19th century, and while it has become less common in recent decades, it remains a controversial method of execution.