What’s on that pole?
This illustration shows the basic equipment found on electric utility poles. The equipment varies according to the location and the service they provide.
- Primary wires
- Primary wires carry 7,200 volts of electricity from a substation. That voltage is 60 times higher than the voltage that runs through your home’s electrical outlets!
- Surge arrestor
- This protects the transformer from lightning strikes.
- Neutral wire
- The neutral wire acts as a line back to the substation and is tied to the ground, balancing the electricity on the system.
- Secondary service drop
- Carries 120/240-volts of electricity to consumers’ homes. It has two “hot” wires from the transformer and a bare “neutral” wire that’s connected to the ground wire on the pole.
- Ground wire
- The ground wire connects to the neutral wire to complete the circuit inside the transformer. It also directs electricity from lightning safely into the earth.
- Telephone, cable TV, and fiber wires
- These are typically the lowest wires on the pole.
- Insulators
- Insulators prevent energized wires from contacting each other or the pole.
Never nail posters or other items to utility poles. These create a safety hazard for lineworkers.
Original illustration by Erin Binkley
OTHER NEWS
Between the lines: Technology, the grid and Dawson PPD (Part 2)
the pros and cons of introducing new technology to the grid
Central and Dawson PPD to vote second time on consolidation documents at July 17 meetings
The boards of The Central Nebraska Public Power and Irrigation District and Dawson Public Power District plan to vote again on the documents required for their consolidation next month. The boards will each hold a special Board Meeting on July 17 at each districts’ respective headquarters.
Three youth selected to attend Youth Energy Leadership Camp
Dawson PPD is sponsoring three local students to attend the Nebraska Rural Electric Association Youth Energy Leadership Camp. The camp will be held at Camp Comeca near Cozad July 9-13, 2023.