Fuses fuses fuses


Ok, this is about fuses

1- a standard Bussman fuse is UL approved. Are any "high end" fuses UL approved?

2- do any component manufacturers supply their gear with any of the usual suspects of high end fuses as opposed to a standard Bussman?

3- let's say fuses do make a difference. Given incoming power is AC, why could fuses be directional? 

Not meaning to light any fires here- 

thanks in advance 
128x128zavato

Theory is when you know everything and nothing works  

Practice is when everything works but nobody knows why  

Apparently in this thread Theory and Practice are combined ... nothing works and nobody knows why    ;-(

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Should i up the rating say from a 4 amp to 5 amp?
That’s been debated extensively in the "Synergistic Red Fuse" thread, with disagreement even among the technically-oriented people. Given that detailed information defining the technical parameters and blow characteristics of the SR and most other audiophile-oriented fuses is not available, and given also that the answer may very well depend on the unspecified surge currents ("inrush currents") that briefly occur when a component is turned on (which in turn will vary widely in both magnitude and duration among different components), there is probably no way to provide a definitive answer.

But FWIW the opinion I expressed in the SR thread was basically that the various reports of failures that have been posted (by at least seven people in the past year or two) suggest that a 5 amp SR fuse may actually be closer in its blow characteristics to a 4 amp "standard" fuse than a 4 amp SR fuse would be. Which if true would say that the rating that is used should be higher than the rating of the stock fuse. Others disagree with that philosophy, however.

Regards,
-- Al

P.S: Dave, thanks for the nice words. Best to you.
 
davehrab
Theory is when you know everything and nothing works.

>>>>Another Gold Star!  🌠

Keep up the good work!

By the way, theory is also when you know everything but you never try anything.

@georgehifi 

Forgot to mention - you can get them blessed by a Cardinal. Then the sound is truly heavenly, but it is an indulgence.