(a) For purposes of this chapter, a utility shall mean all of the following:
(1) An electric corporation.
(2) A water corporation.
(3) A telephone corporation.
(4) A telecommunications carrier, as defined in Section 153 of Title 47 of the United States Code.
(5) A gas corporation.
(6) A local publicly owned electric utility and a publicly owned gas utility.
(7) A special district that owns or operates utilities.
(b) This chapter shall also apply to the following entities:
(1) A cable television corporation.
(2) A cable operator, as defined in Section 522 of Title 47 of the United States Code.