The police chief, fire-rescue chief, and director of transportation, or their designated representatives, shall each have the power and duty to examine and inspect from time to time all poles and every wire or cable in the streets, alleys, highways, or public places within the city when such wire is designed to carry an electric current. They shall notify each person owning or using such poles when any pole is unsafe, and notify each person owning or operating any such wire or cable whenever its attachments, insulation, supports, or appliances are unsuitable or unsafe, and require that such poles, wires, or cables must be properly replaced, renewed, altered, or constructed. They shall require the owner of any pole or wire abandoned for use to remove the pole or wire. (Code 1941, Art. 106-7; Ord. Nos. 22026; 28424; 30239; 30654)