georgehifi
Finally I just installed the fuse with direction along with the flow of electricity and decided to leave it then.
"Hate to tell you, but AC electricity doesn’t flow, it alternates back and forward 50 or 60 time a second (50hz 60hz) depending which country your in. So the directionality of an ac mains fuses is all "expectation bias". You’d have better cred if you belived in the tooth fairy."
It’s not really "electricity" that is alternating, it’s the current that’s alternating. The voltage is not alternating. Otherwise they’d call it AV. Furthermore as we’ve discussed many many times all fuses, even bog standard fuses, exhibit voltage drops that are slightly different depending on direction - even in AC circuits! [Refer to HiFi tuning data sheets.] So fuses ARE directional with respect to conductivity, even in AC circuits. Hel-loo! Also recall we aren’t worried about the direction back toward the wall anyway, only the direction toward the speakers. So the alternating current argument is dead in the water. And when someone says, "in the direction of the flow of electricity" that means in the direction TOWARD the speakers and AWAY from the wall. The electricity does eventually get to the speakers, doesn’t it?