Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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RE: OK to use a larger value fuse in an outboard power supply?

Posted by neolith (A) on May 17, 2017 at 18:10:25

In Reply to: OK to use a larger value fuse in an outboard power supply? posted by Dynamite Ham on May 17, 2017 at 15:23:00:

Ceramic fuses do not handle in-rush better than glass, that is what slow blow fuses are for (glass or ceramic). The sand in the ceramic fuse melts and provides a better barrier to arcing than glass. This makes them a better choice in "dangerous" areas where there may be volatile gases such as a mine or an operating room and when there is a possibility of very high overcurrent such that arcing occurs and the circuit is not interrupted.
Using a higher rated fuse is a safety concern. You might want to try it out to see if there is a audiophilic advantage but don't do it permanently. Also be sure the HiFi Tuning Fuse is slow blow as that's a lot of money to burn if the start in-rush current is too high for a fast blow.



I married the perfect woman. The downside is everything that goes wrong is my fault.

Edits: 05/17/17 05/17/17

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