(1) A public utility may permit the joint use of its equipment and facilities by such arrangement is convenient or necessary and the use will not result in damage to the owner or other users of the equipment.
(2) Where a dispute arises with respect to any such arrangement, a complaint may be made by any of the parties to the Commission which shall settle the dispute.
(3) Notwithstanding subsections (1) and (2) of this section, the Commission may where it is satisfied after investigation that such joint use of equipment and facilities-
(a) is necessary to provide safe, adequate and economic service to consumers;
(b) will not result in irreparable damage to the owners or users of the equipment or facilities; and
(c) is just and reasonable having regard to the circumstances of the case, direct that two or more public utilities enter into such arrangement for joint or combined use or other arrangement upon such terms, including compensation, as the Commission may determine, for the provision of any service; except that the Commission may at any time upon a complaint from any public utility or consumer affected by the directives modify or revoke its earlier directives.