Section 3
SEC. 3. All apparatus and appurtenances used by the grantee shall be modern and first class in every respect, and the electric transmission wires shall be insulated and carefully connected and fastened so as not to come in direct contact 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 shall, whenever the Public Service Commission or its successors so direct, place said wires in underground pipes or conduits at its own expense and without any cost and prejudice to the municipality of Tayabas.