All electrical wiring, materials, equipment and the methods of installation thereof in every county, subject to the provisions of this act, shall be in strict conformity with approved standards for safety to persons and property. Compliance with the electrical code as said code exists at the date of the passage of this act, of any city having a population of from one hundred and eighty thousand (180,000) to two hundred and forty thousand (240,000) according to the last Federal Decennial Census or any future Federal Decennial Census located in any county as defined herein, shall be deemed to prima facie evidence of compliance with this act.

When the electrical code of any such city, as defined in this section, contains no specific standards as to the manner of electrical wiring, materials, equipment and the methods of installation thereof, compliance with the statutes of this state pertaining to the installation of electrical materials and equipment and conformity with the regulations set forth in the current National Electrical Code, in effect at the date of the passage of this act, being the standard of the National Board of Fire Underwriters for electrical wiring and apparatus as recommended by the National Fire Protection Association and approved by the American Standards Association, shall be prima facie evidence of conformity with approved standards for safety to persons and property and of compliance with this act.

Added by Laws 1955, p. 180, § 38, emerg. eff. June 3, 1955.