A. Except as provided in section 9-571, before construction, purchase, acquisition or lease by a municipal corporation, as authorized in sections 9-511, 9-511.01, 9-511.02, 9-512 and 9-513, of any plant or property or portion of plant or property devoted to the business of or services rendered by a public utility shall be undertaken, the construction, purchase, acquisition or lease shall be authorized by the affirmative vote of a majority of the qualified electors who are taxpayers of the municipal corporation voting at a general or special municipal election duly called and held for the purpose of voting on the question.
B. This section does not apply to the construction, purchase, acquisition or lease of water or sewage system utilities by a city or town incorporated pursuant to section 9-101.02.