To Fuse or Not to Fuse... That is the question!
@geoffkait no time at all here you go - a selection of breakers from Kemp https://www.kempelektroniksshop.nl/accessories/audio-grade-fuses.html i has SR give my breaker their Tesla treatment which is something they offer if you send it to them |
And some more http://www.gigawatt.eu/produkt/g-c16a-power-grid-overcurrent-protection-switch/ https://audio-hifi-shop.de/AHP-Klangmodul-4-G-fuer-Sicherung-14x51mm Clearly a thing in Europe. I’ll install one of these when I get my system up and running here in the UK |
The following is so laughably incorrect, I don't know whether the poster was honestly communicating what they believe or if they were trolling. This is wrong. It is not open to debate (unless you have no clue how electricity works). Of course energy is transferred in both directions. That is why power supply ripple is NOT at 60Hz, it is at 120Hz (or 100Hz). Again, not remotely open to debate and easily confirmed. If there is 60Hz noise that is being injected directly into the signal, not from power supply ripple. Signed, "Someone who actually does this for a living." "You can ignore the current traveling in the direction away from the speakers, I.e., toward the wall, since that direction of current flow is not (rpt not) audible. The only direction that’s audible for any wire is the one toward the speakers. It is the speakers that ultimately produce the sound you hear. So, it’s the “quality” of the current traveling toward the speakers that is the issue. That’s why fuses sound better in one direction, worse in the other direction in AC circuits and DC circuits. As Old Blue Eyes sez, that’s life. " |
This is really only partially true and from a certifications standpoint not usually true. The main purpose of an AC mains fuse is to protect the AC wire leading to the equipment so that it does not heat up and cause a fire. In theory any overheating inside an piece of equipment will be suitably contained by the enclosure. Where the case is metal and grounded, it can also provide protection from a live wire contacting the grounded case, which is neutral connected at the panel and will hence blow. Almarg 9-26-2019 I just want to state a point of information: Posts that have been made by at least three different members appear to imply that the purpose of an AC mains fuse in a component is to provide protection against surges in the incoming AC. While it is possible that an AC mains fuse might do that under some circumstances, that is not its intended purpose. Its intended purpose is to blow if a fault within the component causes it to draw excessive AC current. Thereby preventing **additional** damage to the component that may otherwise occur, as well as preventing the possibility of the component overheating or even bursting into flames as a result of the excessive current being drawn. |
