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
Terry9
@geoffkait
"OK, so if it would be "very easy to test" how come none of you guys ever bother to test it? Talk is cheap."

Because I'm not making an assertion which goes against established physics. You are.

>>>I'll be the judge of that.

The onus of proof is on you.

>>>No, it's not. That's a very common misconception.


While stuck in traffic on the LIE this morning, I was wondering if there is any material or compound you could use to insure complete contact between a fuse and fuse holder? 
I guess you could solder it in, but reversing it would be a hassle.
B
This threads insane, it has no technical value at all, as there can’t be a technical discussion on this subject.

SO IT SHOULDN’T EVEN BE IN THIS "Tech Talk" FORUM.

Mods please please shift it to the appropriate forum, say the " Misc Audio " forum,  to stop polluting this forum.

Cheers George