I don't believe they make them anymore, but I have one in perfect condition (green-colored glass) and I think it might be worth something. It's kind of bell shaped with threads on the inside. It also has the year on it. I believe they protected/insulated whatever is at the top of electrical poles.
2006-10-04 04:50:40 · 6 answers · asked by Jeremy 1 in Games & Recreation ➔ Hobbies & Crafts
Insulators. Made out of glass, or ceramics. Still in use today, though shapes can vary - high voltage electricity still can jump (about 25'000 volts for 1 inch) so it remains compulsory to have wires far enough away from the poles, depending on the voltage on the line.
Most high voltage lines would be 110 kiloVolts, meaning that the electricity could jump about 4.5 inches, and you'd need to add some margin of safety.
Extra high voltage lines are above 230kV and some reach 500kV or even more. At 500kV you can have an electric arc nearly 20 inches long, and again, you'd need some safety margin.
Hope this helps
2006-10-04 05:06:46 · answer #1 · answered by AntoineBachmann 5 · 1⤊ 0⤋
Go with Jim's answer, they are insulators. Glass does not conduct electricity.
2006-10-04 04:58:45 · answer #2 · answered by Kevrob_98 2 · 1⤊ 0⤋
you call them those glass things at the top of electrical poles.
2006-10-04 09:20:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋
saftey glass for the lihgts on the poles
2006-10-04 04:53:22 · answer #4 · answered by the77pct 2 · 0⤊ 0⤋
Insulators, I think. We used to sell them, back when I was into antiques. I think I once got about $30.00 out of one.
2006-10-04 04:51:59 · answer #5 · answered by Anonymous · 0⤊ 1⤋
It's a conductor isn't worth but a buck or two
2006-10-04 04:52:02 · answer #6 · answered by Anonymous · 0⤊ 1⤋