Section 4
SEC. 4. All apparatus and appurtenances used by the grantee or thereafter by his successors or assigns shall be modern and first class in every respect, and the electrical transmission wires shall be insulated and carefully connected and fastened so as not to come in direct con tact with any object through which a "ground" could be formed, and shall be stretched so as not to interfere with the free use of said streets and public thoroughfares: Provided, That the grantee and his successors or assigns shall, whenever the Philippine Legislature or its successors, upon recommendation of the Public Utility Commission or its legal successors, so direct, place said wires in underground pipes or conduits at their own expense, and without any cost or prejudice to the municipality of Daet.