The public service commission shall have power:
1. To regulate the raising and lowering of electric supply and communication lines to permit the movement of buildings or other bulky objects; and to adopt and promulgate, after notice and hearing, reasonable rules and regulations pertaining thereto.
2. To require, after notice and hearing, increased clearances in specific locations where electric supply and communication lines cross public roads and streets, provided that the movement of buildings or other bulky objects thereon is sufficiently frequent to so warrant.