In electrification: service that, consistent with normal standards and levels of service based upon good utility management and operating practices, is sufficient in quantity, having regard for the demands for service currently existing and reasonably anticipated within the foreseeable future, and that is accessible on a constant and continuous basis except for outages occasioned by the need for normal repair, maintenance, construction or renovation work or by acts beyond the reasonable ability of the public service entity to prevent or control [Section 3(f), Presidential Decree No. 269, s. 1973]