(a) The bonds and coupons issued under this chapter shall not be general obligations of the municipality, but shall be special obligations payable from and secured by a pledge of revenues derived from the municipality's electric system and otherwise secured as provided in this chapter.
(b) In no event shall the bonds and coupons constitute an indebtedness of the municipality within the meaning of any constitutional or statutory limitation.
(c) It shall be plainly stated on the face of each bond that it has been issued under the provisions of this chapter and that it does not constitute an indebtedness of the municipality within any constitutional or statutory limitation.