Interruption Of Supply

(1) Prompt notice by telephone or telegraph shall be given to the Commission by each utility of all interruptions (except those occurring in the course of routine operations) to, or major impairment of, service for periods of a duration of one (1) hour or more occurring on production works, storage works or transmission mains, or on distribution mains or of accident or damage to portions of the plant which might lead to such interruptions of service. (2) Each utility shall make all reasonable efforts to prevent interruptions of service and when such interruptions occur shall endeavor to re-establish service with the shortest possible delay consistent with the safety to its customers and the general public. Where an emergency interruption affects fire protection service, the utility shall immediately notify the Fire Chief or other responsible local official. (3) Whenever any utility finds it necessary to schedule an interruption to its service, it shall make all reasonable efforts to notify all customers to be affected by the interruption, stating the time and anticipated duration of the interruption. Whenever possible, scheduled interruptions shall be at such hours as will provide least inconvenience to the customer.