Originally Posted by
Yaatri
...Higher voltage is of no consequence...
Not if the higher voltage is enough to short the insulation inside the cord, which (if a U.S. cord) may not have been designed to handle it. At that point the current that the bulb would draw is irrelevant. You have a short circuit.
Rewiring a lamp is the simplest electrical job there is, with the possible exception of replacing the batteries in a TV remote. Do it.