If the Electrical Inspector finds that any electrical equipment or installation is defective or that it has been installed in conflict with the provisions of this chapter, he or she shall so notify the electrician and shall, within a reasonable time thereafter, deliver by mail a written instrument setting out his or her findings and orders. If the necessary changes or repairs are not completed within fifteen (15) days (or a longer period as specified in the notice), the Electrical Inspector has the authority to disconnect or order the discontinuance of electrical service to the equipment or installation in question. In an emergency, if necessary for safety to persons or property or if electrical equipment may interfere with the work of the Fire Department, the Electrical Inspector has the authority to disconnect or cause the immediate disconnection of any such electrical equipment. If fire has damaged the wiring of any building or structure, reconnection to the electrical supply shall not be made until the Electrical Inspector has sent a written notice of such authorization to the electrical utility supplying the electricity. Such utility is prohibited from supplying or furnishing electricity until the receipt of such authorization.