I don't know why people are fighting in the world.
This thread is about fuses, mate.
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I don't know why people are fighting in the world.
Discussions about these fuses are currently (pun intended) doing the rounds on UK forums, I’d not really taken much interest until I saw images of them, specifically fuses designed to go in our plugs.
Due to our wiring regulations in the UK we have a fuse in our plugs (many other countries also use either our wiring regulations or our plugs and sockets), this is used to protect the cable supplying the equipment. There are specific requirements to this fuse set out by British Standards (BS), BS 1362 is the relevant standard for plug top fuses. The majority of these audiophile aftermarket fuses do not have any information or markings in them to indicate wether or not they conform the BS 1362. Some have the CE mark on their packaging but national standards, such as BS, trump CE markings. In fact it could be an offence under the Trade Descriptions Act to use such a marking in them.
Without any information on these we have no idea how they react under inrush current, how much current is required before they blow or their maximum power dissipation. Digging around other forums it appears people have contacted the relevant manufacturers and retailers but no definitive information has been forthcoming.
Unfortunately BS 1362 costs around £170, so I don’t have access to it, but I’d be interested to see how far these fuses deviate from it.
Amazing results, the manufacturer that did the testing, his fuses measured the best.Here is a link to some measurements taken of audiophile fuses.
http://www.hifi-tuning.com/pdf/wlfr.eng.pdf
Amazing results, the manufacturer that did the testing, his fuses measured the best.
And/or how do we know that they will follow the correct time & current response curve that well chosen fuses do?This highlights some of the potential problems with these audiophile fuses. How do we know that they’re not sourced from the same factories that make counterfeit fuses?
When you put in the effort make damn sure it's worth it !Amazing results, the manufacturer that did the testing, his fuses measured the best.
Here is a link to some measurements taken of audiophile fuses.
http://www.hifi-tuning.com/pdf/wlfr.eng.pdf
My my, look who's crawled out of the woodwork. You selling fuses now too?And yet you complain when manufacturers don’t publish any measurements. Bit of a double-standard, eh?
"The high end fuses all give better results in conductivity"Amazing results, the manufacturer that did the testing, his fuses measured the best.
Fuses get very nonlinear as they approach their current limits. Even before that electromigration raises their impedance, more a problem in a DC line (e.g. power supply) than the AC input fuse. In a power line this is usually a don't-care; in a speaker line the effects of a fuse are generally to raise the output impedance (meaning less control of the speaker and all that implies) and potentially to raise the distortion. As has been noted, until it blows, the added distortion and frequency modulation is usually slight but measurable. Audible? I'll pass on that one...
Slo-blo fuses are very uncommon in today's electronics. They would get a more use in tube products, things with motors and such.Given the graph from https://m.littelfuse.com/~/media/fi...ference-documents/elec_fuse_temp_derating.pdf for the slow blow fuses, seems that power rating varies with at most 20% in temp. increases from 25C to >100C.