It is unlawful for any person using or employing electrical current to fail or neglect to provide and put in use such means, appliances and apparatus as will, so far as practicable, control and effectually contain the current or energy in isolated paths and on their own wires, conductors or structures, so as to prevent damage or injury through discharge to ground to City pipes and structures and the pipes or structures of others. It is unlawful for any person using or employing electrical current to fail to take such measures as are necessary and appropriate to prevent contribution to injury or damage to pipes or structures belonging to the City or others. Conviction for violation of this Section shall not take away or abridge the right of the City or any other person to damages for injury to its pipes or other structures resulting from escape of electrical current.