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Post by pinkie on Feb 10, 2018 17:43:28 GMT
I wonder whether any qualified professional or knowledgable fellow might comment upon the following questions. Is the following mains topology Stricktly *Legal* within the current UK regulations ? A full Schuko plug and receptical equipment loom fed by a mains lead to fused UK plug into mains wall receptical into standard UK ring mains, I would think so however ? on my phone in the pub watching the rugby so allow for Cox ups. Not an expert but if you read the tags such arrangements are permitted. There are ruled for adaptors. Broadly as long as the connection at the wall is bs1364 you can have other connectors downstream. |
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Post by TheMooN on Feb 10, 2018 17:43:37 GMT
Thanks for your responses chaps, how about this one when Regs are applied.
Full Schuko loom running into UN- Fused wall Receptical via dedicated mains spur into RCBO consumer unit ? I would guess Nein.
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Post by MikeMusic on Feb 10, 2018 18:25:25 GMT
Been recommended by a few. MCRU being one. I have an Audio Magic filter box. UK cable and fuse going in. After lots of filtering ... Schuko plugs and leads leading to each piece of kit. Not fused. Internal fuses in place inside the kit of course I use similar - an AG1500 regenerator whose output feeds via IEC plug to IEC multiway and each piece of equipment has an IEC plug. Hence the only external fuse is the one in the AG1500 input. 'Powerinspired' (AG makers) assured me that is both safe and legal. Can't say it actually makes any difference to the sound though !! My guess is Schuko outperforms IEC. Gut feel only |
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Post by TheMooN on Feb 10, 2018 19:23:06 GMT
That was my first thought also, I am in the process of morphing into a full Schuko loom into 2 X Uk fused mains plugs.
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Post by pinkie on Feb 11, 2018 6:08:39 GMT
Thanks for your responses chaps, how about this one when Regs are applied. Full Schuko loom running into UN- Fused wall Receptical via dedicated mains spur into RCBO consumer unit ? I would guess Nein. Yup. Effectively what we have here in France, so perfectly safe, but doesn't comply with the plugs and sockets regs. I don't suppose this will help you, but the arrangement has no audible benefit I can detect. |
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Post by Deleted on Feb 11, 2018 7:32:15 GMT
Slightly off topic but still pertinent to reducing fuses, anyone tried a DIY Hydra? I had one once but I never compared it. I just used it.
I'm thinking it may also benefit anyone using an SR fuse at £130 a pop if the benefits could be shared with several items of kit.
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Post by Stratmangler on Feb 11, 2018 8:57:46 GMT
Slightly off topic but still pertinent to reducing fuses, anyone tried a DIY Hydra? I had one once but I never compared it. I just used it. I'm thinking it may also benefit anyone using an SR fuse at £130 a pop if the benefits could be shared with several items of kit. Ooh, I don't know! Wouldn't the effect be diluted? |
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Post by zippy on Feb 11, 2018 8:59:10 GMT
Slightly off topic but still pertinent to reducing fuses, anyone tried a DIY Hydra? I had one once but I never compared it. I just used it. I'm thinking it may also benefit anyone using an SR fuse at £130 a pop if the benefits could be shared with several items of kit. I can't see the benefit of a Hydra (apart from convenience) as each attached unit will still be taking power via a fuse. I don't think I'd want to use a home-made one - how would you safely join the cables ? |
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Post by MartinT on Feb 11, 2018 9:59:02 GMT
I don't think I'd want to use a home-made one - how would you safely join the cables ? Terminal block in a plastic box with non-pull grommets for the cables. |
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Post by Deleted on Feb 11, 2018 10:29:37 GMT
I guess the benefits would be dependent on whether the fuse actually does affect the mains beyond it. If it does, then you'd be affecting more items by running them through it. As for "diluting" the effect, I wouldn't rule it out, it's something I'd only find out by trying. It may have been said tongue in cheek, but it had already crossed my mind.
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Post by Deleted on Feb 11, 2018 11:40:44 GMT
Thanks for your responses chaps, how about this one when Regs are applied. Full Schuko loom running into UN- Fused wall Receptical via dedicated mains spur into RCBO consumer unit ? I would guess Nein. It would be a radial circuit not a spur. A spur is a wire taken off a ring main. As far as I can see a radial with Schuko sockets is perfectly legal (as used all over the EU). |
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Post by TheMooN on Feb 11, 2018 12:34:36 GMT
Thanks for your responses chaps, how about this one when Regs are applied. Full Schuko loom running into UN- Fused wall Receptical via dedicated mains spur into RCBO consumer unit ? I would guess Nein. It would be a radial circuit not a spur. A spur is a wire taken off a ring main. As far as I can see a radial with Schuko sockets is perfectly legal (as used all over the EU). Yes my apologies, My analogy should have indicated a radial to CU. |
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Post by TheMooN on Feb 11, 2018 12:50:06 GMT
I guess the benefits would be dependent on whether the fuse actually does affect the mains beyond it. If it does, then you'd be affecting more items by running them through it. As for "diluting" the effect, I wouldn't rule it out, it's something I'd only find out by trying. It may have been said tongue in cheek, but it had already crossed my mind. I wouldn't have thought so unless you are running a nuclear reactor off of your Hydra, I would think sufficient (fuse filtered) current should be conducted via the Hydra output leads to addiquatly power your equipment , however from my own experimentation thus far Such an arrangment would loose a good deal of the effect of the pre Hydra ( master) fuse when said current hits the standard fuse in the power rail of ones equipment. For my part I would prefer a standard 13A fuse delivering (UN- Filtered ) current to my equipment fitted with its own SR power rail fuse, I appreciate that the latter topology is the more expensive option of the two, ideally and if funds allow the master 13A fuse would be SR also. |
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Post by MartinT on Feb 11, 2018 13:29:37 GMT
The benefit of the P10 is that it has separate isolated zones, preventing one component from feeding crap into another. A hydra wouldn't do that.
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Post by dsjr on Feb 11, 2018 13:57:07 GMT
Silly comment perhaps, but you ARE comparing replacement fuses with NEW standard types and not ones sitting on the plugs untouched for years? Chris(t) Frankland years ago used to go on and on about cleaning mains plug pins and polishing fuse caps. Not saying he's wrong although I believe he was anal about it (and Naim amps of the period didn't necessarily help with common sense either), but contacts can tarnish and even removing and replacing a well used 13A plug fuse could sometimes be seen to make a difference as some amps do seem more directly 'connected' to mains anomalies than other amps are.
Mike, I do hope your magic filter box isn't in the line to the power amp? Even I don't do that and I have numerous Roxburgh 6A filters on my digital sources which were seen to help once upon a time...
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Post by TheMooN on Feb 11, 2018 14:16:26 GMT
Nope, In my case brand new shiny standard fuses in newish shiny power rail fuse holders.
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Post by MikeMusic on Feb 11, 2018 15:42:35 GMT
Mike, I do hope your magic filter box isn't in the line to the power amp? Even I don't do that and I have numerous Roxburgh 6A filters on my digital sources which were seen to help once upon a time... Everything comes off the filter box. A step up for me on the P10. Don't think I tried the power amps separately when comparing |
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Post by Deleted on Feb 12, 2018 7:20:14 GMT
Did anybody get a response about the British Standard question from SR?
They seem to have ignored my question, which is a bit odd.
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Post by pinkie on Feb 12, 2018 7:22:21 GMT
Thanks for your responses chaps, how about this one when Regs are applied. Full Schuko loom running into UN- Fused wall Receptical via dedicated mains spur into RCBO consumer unit ? I would guess Nein. It would be a radial circuit not a spur. A spur is a wire taken off a ring main. As far as I can see a radial with Schuko sockets is perfectly legal (as used all over the EU). What has the EU got to do with anything? Where do the plug and socket regulations distinguish radials from rings, or total circuit protection values? |
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Post by pinkie on Feb 12, 2018 7:23:19 GMT
Did anybody get a response about the British Standard question from SR? They seem to have ignored my question, which is a bit odd. As I noted Kevin, given that one of the requirements of the standard is that the fuse bear the kite mark and "BS1362" the question seems somewhat redundant |
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