(A) The provisions of this code shall apply to all installations of and work done on electrical conductors, fittings, devices, motors, controls, appliances, fixtures, electronic devices, signs and gaseous tubing, hereinafter referred to as “electrical equipment,” within or on public and private buildings and premises, with exceptions as provided herein.
(B) On all installations of electrical conductors or equipment hereafter made and all existing installations which are altered or for which the use has changed, all work shall be done in a manner that will conform with the requirements for a sufficient and safe electrical structure and system under this code.
(C) Repair and maintenance work shall be such that if any electrical conductor or equipment is removed and later replaced, same shall be replaced in accordance with the provisions of this code.
(`87 Code, § 30-3)