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Post by The Brookmeister on Jan 22, 2017 16:49:17 GMT
Time for my next SR Black fuse.  Just ordered it. .... is it destined for the mains plug for my pre-amp or power amp?  I'd probably try the power amp. But it depends on the rating of the fuse you have ordered, does your pre amp need the same rating as the Power amp? The mains plug fuses are ALL 13 amp Internal 20mm fuses are all different ratings. |
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Post by kettlechips on Jan 22, 2017 16:58:14 GMT
Nope, UK mains fuses come in 3, 5 and 10 amp values as well as 13 amp. Are the audiophile ones only available in 13 amp? That's not very safe!
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Post by MartinT on Jan 22, 2017 17:54:34 GMT
You been on the booze chief? Furutch don't make a silver plated mains plug...lol It's been a while and I may be remembering the Missing Link plug. No matter, I didn't pursue silver plugs and ended up swapping out the rhodiums for golds. The point was: the rhodiums are more expensive but the golds sound better. |
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Post by Deleted on Jan 22, 2017 18:40:10 GMT
My Equipment never ever has an overrated Fuse in the plug. I work everything out correctly. Its an easy calculation unless you are as thick as pig sh*t in which case you should not be going anywhere near a plug in the first place. I know what i think about people that do not stick to stringent Electrical rules set out in stone.  |
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Post by MartinT on Jan 22, 2017 19:39:29 GMT
The thing is, most equipment supplied with 'kettle leads' have a 13A fuse in the lead. It's the same for computer equipment.
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Post by The Brookmeister on Jan 22, 2017 20:16:53 GMT
Nope, UK mains fuses come in 3, 5 and 10 amp values as well as 13 amp. Are the audiophile ones only available in 13 amp? That's not very safe! I was referring to SR fuses, 13A and they are perfectly safe. The fuse in the mains plug is only there to protect the mains lead. |
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Post by The Brookmeister on Jan 22, 2017 20:17:39 GMT
My Equipment never ever has an overrated Fuse in the plug. I work everything out correctly. Its an easy calculation unless you are as thick as pig sh*t in which case you should not be going anywhere near a plug in the first place. I know what i think about people that do not stick to stringent Electrical rules set out in stone. lol |
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Post by Deleted on Jan 22, 2017 20:28:58 GMT
Yeh what eva
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Post by Deleted on Jan 22, 2017 21:08:34 GMT
I went through all the fuses in my house a few years ago and checked they were not over-rated for the task. I don't remember how many I changed but I don't think it was all that many. Probably worth another check, especially for stuff I leave switched on 24/7.
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Post by MartinT on Jan 23, 2017 7:27:33 GMT
It seems to be since the Chinese supplied power cables with pretty much everything that they mostly contain 13A fuses as standard.
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Post by pinkie on Jan 23, 2017 8:58:24 GMT
www.electricalsafetyfirst.org.uk/guides-and-advice/electrical-items/plugs/www.rospa.com/home-safety/uk/northern-ireland/electricity/plugs-fuses/choosing-fuses/The fuse protects the lead. The standards changed recently and the old 5 amp fuse is effectively redundant. There are 2 standards - appliances up to 700 watts have a 3 amp fuse. Appliances above 700w up to 3kw have a 13 amp fuse. That said- if your appliance lacks internal safety fuses an appropriate value in the plug might be additional protection If you are using IEE leads, and have a Donkeys Donger foo one, the lead is likely to be rated at 13 amp even if the appliance it is connected to isn't. I hate making statements like the next one on this or any forum apart from Wigwam, because electrical safety is not something you should get from a blog, but in practice, the main risk with using a 13 amp fuse in an appliance rated at 700w or less will be if it is the original IEE lead or a fixed lead (class II devices ) where the lead itself is only rated at less than 13 amps, and even then the lead MAY be rated higher than the appliance maximum current draw.
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Post by AlanS on Jan 23, 2017 10:41:49 GMT
What exactly are you trying to infer Alan? Sorry to see you think I am trying to infer something exact or otherwise. |
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Post by ChrisB on Jan 23, 2017 14:21:17 GMT
OK, sorry, you are not trying to infer something. You are inferring it.
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Post by Slinger on Jan 23, 2017 14:34:57 GMT
Sorry, the last couple of posts just reminded me of this...
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Post by ChrisB on Jan 23, 2017 14:38:12 GMT
Ha, yes very good.
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Bonky
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Post by Bonky on Jan 23, 2017 17:12:27 GMT
I'm thinking of buying a Quad 405-2 ( I already use a 306 and wondered if I would be able to hear an improvement in sq ....but I can see that would need a new topic...but all comments still welcome!)
Anyway, I was looking at the circuit diagram for the two output boards and each has a 4 amp fuse in the signal path. Now IF audiophile fuses are going to make a difference then I could understand them making a difference in this situation.
Has anyone tried this mod in a Quad or any other amp, and where can I get audiophile four amp fuses from? The usual sources are either 3, 5 or 13.
Thanks.
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Post by MartinT on Jan 23, 2017 17:22:32 GMT
I've always thought that fuses have no place in the output of an amp. Firstly, a transistor will blow on an over-current while the fuse is still warming up. Secondly, why would you introduce a non-linear thermal limiter in the output when you don't want anything of the sort there.
You may as well fit a 5A fuse in that position. Different values are available for 20mm or 1 1/4" depending on the internal type.
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Post by Deleted on Jan 23, 2017 17:52:18 GMT
There is a better upgrade for the '405' if it were a Mk.1 which includes swapping out the chassis mount 5A Fuse.. One of these: ETA '1110' circuit breaker.. Internal Resistance of only 0.05 Ohm.. Fits directly into the Original Chassis fuse Holder cut out. You alser use it as the on/off switch hence you don't need the Quad pre amp to power up the '405' , alser leaves the Mains switching IEC's redundant.  |
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Post by MartinT on Jan 23, 2017 17:54:45 GMT
Nice idea, and much better than a fuse.
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Post by The Brookmeister on Jan 23, 2017 18:32:58 GMT
Sorry, the last couple of posts just reminded me of this... Proper comedy, good post! |
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