Timeline for Why do fuses burn at a specific current?
Current License: CC BY-SA 4.0
20 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 2, 2019 at 20:51 | history | removed from network questions | Nick Alexeev | ||
| Sep 2, 2019 at 13:28 | answer | added | Matt Timmermans | timeline score: 1 | |
| Sep 2, 2019 at 7:09 | answer | added | Dmitry Grigoryev | timeline score: 1 | |
| Sep 2, 2019 at 5:55 | answer | added | niels nielsen | timeline score: 2 | |
| Sep 2, 2019 at 0:13 | comment | added | mckenzm | Yes, fuses are in series, and the crowbar (!) goes across the (downstream) voltage source. Just to be sure the current is high enough ;) | |
| Sep 1, 2019 at 15:00 | history | tweeted | twitter.com/StackElectronix/status/1168176773923778566 | ||
| Sep 1, 2019 at 10:16 | answer | added | cmaster - reinstate monica | timeline score: 4 | |
| Sep 1, 2019 at 8:32 | history | became hot network question | |||
| Aug 31, 2019 at 21:18 | comment | added | Russell McMahon♦ | This explanation should help. And the graphs here on page 3 in conjunction with that article and explanations here should help muchly. Note well that the axis are log-log. | |
| Aug 31, 2019 at 21:14 | vote | accept | S. Rotos | ||
| Aug 31, 2019 at 21:14 | comment | added | S. Rotos | @DKNguyen Ah, I think I understand it now, my misunderstanding was something of a brain-fart. Thank you very much! | |
| Aug 31, 2019 at 20:50 | comment | added | DKNguyen | @S.Rotos You miss Oldfart's point. You never put a fuse by itself across a voltage source. What is the purpose of a fuse? To limit voltage across itself? No. To limit power it is dissipating in itself? No. To limit current flowing through itself? Suprisingly, it's not this either! A fuse's purpose is to limit the current flowing through the load. You could argue that a fuse's purpose might be to limit the power or voltage across the load, but now all your fuse ratings are dependent on the characteristics of the specific load it is being used with (load power/voltage cannot be seen by the fuse) | |
| Aug 31, 2019 at 20:18 | answer | added | DKNguyen | timeline score: 7 | |
| Aug 31, 2019 at 20:11 | comment | added | Swedgin | They burn at a specific current because that's their purpose. All other units don't matter. You install a fuse in your circuit cause you want to protect it from overcurrent and ideally it has no voltage drop so you don't lose power. Hence putting the resistance in the rating is unnecessary, it should be nearing zero. | |
| Aug 31, 2019 at 20:05 | answer | added | Transistor | timeline score: 27 | |
| Aug 31, 2019 at 20:02 | comment | added | S. Rotos | @Oldfart If we know the resistance of the fuse and maximum current, we do know the maximum voltage, by calculating it using Ohms law. | |
| Aug 31, 2019 at 19:51 | answer | added | Peter Bennett | timeline score: 11 | |
| Aug 31, 2019 at 19:37 | comment | added | Oldfart | " why don't we instead call it 1kV fuse " because you don't know the voltage over the fuse. It depends on the load after the fuse, which normally should have most of the voltage over it. | |
| Aug 31, 2019 at 19:36 | answer | added | TimWescott | timeline score: 19 | |
| Aug 31, 2019 at 19:28 | history | asked | S. Rotos | CC BY-SA 4.0 |