Ceramic Things On Power Poles

The distribution lines that run down your street are probably 5 15kv.

Ceramic things on power poles.

Metal and concrete poles can last much longer but eventually all utility poles need to be replaced. It lowers the voltage from the higher voltage in the supply lines to the power used in your house. It s a distribution transformer aka pole pig. Insulators are those glass or porcelain things you see on the tops and crossarms of telephone poles.

Instead the electrical lines are attached to things that look like dinner plates or cups. You definitely don t want the power lines connecting to the poles. Those are the insulators. It leaks if you don t seal it.

From what i ve noticed high voltage ceramic insulators only insulate conductors end to end not inside to outside like traditional plastic insulators. What s on an electric power pole. Their purpose is to insulate the electrical wires they carry so that electricity or telephone calls don t all leak into the pole and into the earth. Electricity is like water.

Ever notice that power lines don t actually touch the poles. I could not find any information regarding this particular shape though. Cutouts act like a fuse and open when there is a problem with the line or a section of it. Insulators prevent energized wires from coming in contact with each other or the utility pole.

6 insulators protect electricity from draining into utility poles.