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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Another fuse value and safety question ???? posted by Tweaker456 on April 29, 2016 at 10:20:01:
The reason it's ok to use that high of fuse is due to inrush current on power up. there is a current draw due the caps in the power supply charging up. If the fuse was too small they would blow constantly upon power up.I have a power amp that puts out 175 watts but has a huge Transformer 1.5kVa with cap values of 33,000 each. so the current draw is huge so my original fuse was a 6A slow blow. The guy that who helped design my amp says I could use fuses that were a little higher 8A. But since the fuse never pops on power up with the original value I just left it alone.
When the fuse did blow it was due to a problem and it turned out to be a bad capacitor. So the fuse was perfect in value.
I went to a ceramic fuse and I did notice an improvement in sound. I switched the original fuse and the ceramic fuse in and out a few times with the ceramic fuse making my system better sounding by a good amount.
Edits: 05/05/16 05/05/16
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Follow Ups
- If the designer says it's ok, then why question it. - Cougar 23:16:20 05/05/16 (3)
- RE: If the designer says it's ok, then why question it. - Tweaker456 12:28:44 05/06/16 (1)
- For my amp.... - Cougar 18:04:24 05/06/16 (0)
- RE: If the designer says it's ok, then why question it. - Tweaker456 07:36:23 05/06/16 (0)
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