Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
is (normal) glass an electric insulator, and how much current/p.d would it take for glass to melt?
thank you to everyone that answers
1 Answer
- Thomas CLv 61 decade agoFavorite Answer
Glass and porcelain are used for electric insulators. The insulator is used to physically support the conductor. The current does not flow through the insulator.
Could a conductor get hot enough to melt the insulator that is supporting it? Not really. The melting point of glass is over 2500 °F. The melting point of common conductors (aluminum, copper, etc) is far lower. The conductor itself would melt down before the insulator would be damaged.
If the current were flowing through the insulator, then you'd have a fault condition and the upstream over-current protective device (fuse or breaker) would clear the fault.