Ceramic Things On Power Poles

Cutouts act like a fuse and open when there is a problem with the line or a section of it.

Ceramic things on power poles.

The distribution lines that run down your street are probably 5 15kv. Primary wires are on top of the pole and usually carry 12 000 volts of electricity from a substation. Instead the electrical lines are attached to things that look like dinner plates or cups. Electricity is like water.

From what i ve noticed high voltage ceramic insulators only insulate conductors end to end not inside to outside like traditional plastic insulators. 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. You definitely don t want the power lines connecting to the poles. It lowers the voltage from the higher voltage in the supply lines to the power used in your house.

6 insulators protect electricity from draining into utility poles. It s a distribution transformer aka pole pig. What s on an electric power pole. I ve seen these stacked disc structures on high voltage power lines everywhere.

It leaks if you don t seal it. From the length of the insulators probably towards the higher end of that spectrum. Those are the insulators. Insulators prevent energized wires from coming in contact with each other or the utility pole.

Metal and concrete poles can last much longer but eventually all utility poles need to be replaced.