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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 
zavato

Showing 7 responses by gdnrbob

gdnrbob
4,506 posts
 
Oh, your are going to light fires, especially with that avatar ;)

Re: directional fuses, I recall Ralph at Atma-Sphere mentioning something, but I forgot the details. Though I think he said there was something to it. (If I am wrong Ralph, sorry).
B
gdnrbob
4,506 posts
 

@geoffkait I don’t want to put words in Ralph’s mouth, either, but I’m pretty sure he’s not really on board the whole fuse directionality train. His argument is (and I suppose he could possibly be accused of fence sitting on fuse directionality) that when someone flips the fuse it somehow magically gets a better grip in the fuse holder. Cough, cough As I recall the other fence sitter Almarg agrees with Ralph in this regard.
Thanks, Geoff, that was what he said!
bob
gdnrbob
4,506 posts
 
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
gdnrbob
4,506 posts
 
@zavato 
I tried to warn you...


are specialty fuses  supplied as original equipment, and directivity.

I don't fully understand the question you asked. 
Do you mean aftermarket fuses already installed by the manufacturer?
If so, I doubt any put them in as original equipment.
Bob
gdnrbob
4,506 posts
 
@atmasphere 
Sorry if I put words in your mouth. I appreciate that you have clarified what I thought you meant.
 -That was why I posted if there was a way to insure a fuse would have complete contact in a fuse holder.
Bob
gdnrbob
4,506 posts
 
@tubegroover 
I concur.
I feel that aftermarket fuse manufacturers are simply cashing in on the fuse upgrade mentality.
Are there differences-Yes. 
Are they worth the money-YMMV
B
gdnrbob
4,506 posts
 
Well said, nonoise.
BTW-How do you get those hammers and other icons to show? I don't have any when I post.
Bob
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