Maryland Labor and Employment Section 6-102

      This title does not apply to:

            (1)      the maintenance or repair of an electric power plant or system that a private company or corporation owns or operates for production of electricity for its own use; or

            (2)      the construction, maintenance, or operation of a high voltage line and its support structures and associated equipment by a public utility that the Public Service Commission regulates or an agent or contractor of the utility.