(a) Except as provided in division (b) below, it shall be unlawful for any person to engage in any electrical construction as defined in § 4-301 within the city without an electrical permit being first obtained therefor from the City Clerk, after approval by the Chief Building Official or his or her duly authorized assistant. The application for such permit shall be made and the permit obtained before any electrical construction work is commenced.
(b) No electrical permit shall be required for any of the following:
(1) The replacement of lamps, fuses, bulbs or the connection of portable electrical equipment to suitable permanently installed receptacles and replacement of receptacles and switches, lighting fixtures and apparatus where no changes or alterations are made to the wiring;
(2) Any work involved in the manufacturing, repair or testing of any electrical equipment or apparatus, but not including any permanent wiring; or
(3) Any work in industrial establishments where the issuance of electrical permits comes under the scope of other agencies.