(a) This part shall not be construed as applying to the construction, reconstruction, operation, and maintenance of overhead electrical conductors and their supporting structures and associated equipment by authorized and qualified electrical workers. Specifically, this part shall not be construed as applying to the construction, reconstruction, operation, and maintenance of overhead electrical circuits or conductors and their supporting structures and associated equipment for rail transportation systems or for electrical generating, transmission, and distribution systems or for communication systems, when such work is performed by authorized and qualified employees of any person engaged in such work.

(b) When applied to railway systems, the exception provided in this Code section shall be construed as permitting operation of standard rail equipment which is normally used in the transportation of freight or passengers, or both, or in the operation of relief trains or other equipment in emergencies, or in the maintenance of way service, at a distance of less than ten feet from any high-voltage conductor of such railway system; provided, however, that normal repair or construction operations at a distance of less than ten feet from any high-voltage conductor by other than properly qualified and authorized persons or employees under the direct supervision of an authorized person who is familiar with the hazards involved is prohibited, unless there has been compliance with the safety provisions of Code Section 46-3-33.

(c) Any telephone company or other entity which has a joint use contract with an electric company is specifically exempted from this part.