(A) The utility will designate the point at which the service lines will be connected to the customer's facilities. The customer's wires at the point of connection with the utility's lines, shall extend at least three feet beyond the outer end of any conduit, weatherproof fitting, or insulator in order to facilitate this connection.
(B) A customer desiring an underground service connection from the overhead distribution system, must at his own expense install and maintain service wires of an approved type from the utility's pole from which connection is made to the customer's facilities, including the necessary riser up the pole to the height specified by the utility.
(C) Any changes made in service connections at the customer's request, after the original installation, shall be at the customer's expense.
('75 Code, § 6.21)