Section 24.39.80.153 - ELECTRIC SIGNAL SYSTEMS01.Weatherproof Wire and Attachments to Be Used. Where an electrical signal system is used, all wire and attachments shall be of the weather proof type.02.Electric Signal Systems to Be Properly Installed and Adjusted. Electric signal systems shall be properly installed and adjusted as necessary. They shall be protected against accidental signaling, and shall be maintained in good operating condition at all times.03.All Connections to Be Weatherproof. All connections in insulated signal wire shall be weatherproof.Idaho Admin. Code r. 24.39.80.153