The manager of the municipal power system shall give written notice to the owner or owners or their agents, in all cases where any wire or wires have become defective and dangerous to life or property, to remove or replace such wires with new wire. If such notice is not complied with, the manager shall request action by the board of condemnation under the provisions of chapter 2.26 of this code, or in emergency cases shall cause all dead wires, unused poles or electric apparatus on the outside of buildings or in the streets or alleys to be removed at the expense of the owner or owners of the wires, poles or apparatus. (Prior code § 8-4-17)