Ceramic Things On Power Poles

Ever notice that power lines don t actually touch the poles.

Ceramic things on power poles. The distribution lines that run down your street are probably 5 15kv. Cutouts act like a fuse and open when there is a problem with the line or a section of it. It leaks if you don t seal it. Insulators are those glass or porcelain things you see on the tops and crossarms of telephone poles.

What s on an electric power pole. It lowers the voltage from the higher voltage in the supply lines to the power used in your house. I could not find any information regarding this particular shape though. Primary wires are on top of the pole and usually carry 12 000 volts of electricity from a substation.

You definitely don t want the power lines connecting to the poles. Insulators prevent energized wires from coming in contact with each other or the utility pole. 6 insulators protect electricity from draining into utility poles. I ve seen these stacked disc structures on high voltage power lines everywhere.

Metal and concrete poles can last much longer but eventually all utility poles need to be replaced. 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. It s a distribution transformer aka pole pig.

From what i ve noticed high voltage ceramic insulators only insulate conductors end to end not inside to outside like traditional plastic insulators.