This chapter shall not be construed as relieving or limiting in any way the responsibility or liability of any person owning and operating, controlling or installing any electrical materials, devices or appliances for personal injury or property damage resulting from the use thereof by reason of any defect therein or for any other cause, nor shall it be construed as imposing upon the city or its officers or employees of any responsibility or liability by reason of the approval of any materials, devices or appliances under the provisions of this chapter. (Prior code § 7.22.160)