TAIPEI, May 13 (Reuters) - Taiwan Semiconductor Manufacturing Co Ltd said on Thursday that some facilities experienced a “brief power dip” in the afternoon after an island-wider power outage, but electricity is currently being supplied as normal. “TSMC has taken emergency response measures and prepared generators to minimise potential impact,” it said in a statement. (Reporting by Ben Blanchard; Editing by Alex Richardson) Our Standards: The Thomson Reuters Trust Principles.