Section 3
SEC. 3. All apparatus and appurtenances used by the grantee or hereafter by his successors or assigns 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 nor cause any injury to the public, danger of fire, or damage and inconvenience to the owners of property: Provided, That in the maintenance and operation of his plant and system for the transmission and distribution of electric current,' the grantee shall always be subject to such reasonable regulations as the municipal council of San Miguel and the provincial board of Bulacan may promulgate in the premises, and also to the regulations prescribed by the "National Electrical Code" of America: Provided, further, That the grantee shall, whenever the Philippine Legislature, upon recommendation of the Public Service Commission or its legal successor, so directs, place said wires in underground pipes or conduits at his own expense, and without any cost and prejudice to the municipality above mentioned.