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Post by Sovereign on Nov 13, 2016 23:43:08 GMT
For what it's worth, when I was using the AG1500 and I made my DIY mistake, the AG1500 and the RCD tripped at the same time. We mustn't forget that we live in Britain, and as such the products sold to us have to meet extremely high safety standards to be able sold to the British public. We are a very well looked after people.
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Post by pinkie on Nov 14, 2016 6:15:48 GMT
The PS Audio P10 has an inlet fuse and an output RCD to protect equipment that it feeds. I don't know the AG1500, but hopefully it would have a similar level of protection. Mod: I simply don't know and don't care what it is that you're trying to 'teach' me, Richard. You have used the word 'dangerous' about something I wrote, whereas I simply wrote facts. At no time have I stated that the RCD on the input side and the RCD on the output side do the same thing. Nor have I written that the protective earth does the same thing. I think you *want* to read something which I didn't write. You are not an authority on this, you are an accountant. As for your 'expert friend', I have said before that he is welcome to join and give his own views. Otherwise, I want to hear no more about this or about him.
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Post by pinkie on Nov 14, 2016 6:29:07 GMT
For what it's worth, when I was using the AG1500 and I made my DIY mistake, the AG1500 and the RCD tripped at the same time. We mustn't forget that we live in Britain, and as such the products sold to us have to meet extremely high safety standards to be able sold to the British public. We are a very well looked after people.By James. Sadly that statement about safety standards is not true. The bps you sell have no CE mark - just one example of the grey areas where safety standards are not able to protect. And there are lots of misunderstandings about electricity. I don't know what the fault was on your AG1500 but possibly either you confused an mcb with an rcd as others have, or the faulty AG1500 tripped the rcd. It's pretty simple. Buy an rcd tester on ebay, use an adapter for your non standard power sockets and see if you can trip the house rcds with an rcd test fault on the bps output sockets. I am back for a week on 21st although my priority is visiting my sisters boyfriend who has terminal lung cancer and my wife's mother who is going in for bowel cancer surgery, and not playing with hifi, but I'll pack a tester to bring round if we both have time. They are less than a tenner though.
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Post by daytona600 on Nov 14, 2016 8:18:10 GMT
tried a AG1500 Myself small increase in low level detail & a big drop in dynamics & flow common in all regen units i have tried unless component has a cheap/poor PSU like SMPS wthen they offer better sound just a modified computer UPS unit with shocking effciency & runs hot , quality inveters run cold & 98%+ effciency
Better results with BMU or AVR/Conditioner
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Post by pinkie on Nov 14, 2016 8:21:05 GMT
The PS Audio P10 has an inlet fuse and an output RCD to protect equipment that it feeds. I don't know the AG1500, but hopefully it would have a similar level of protection. Mod: I simply don't know and don't care what it is that you're trying to 'teach' me, Richard. You have used the word 'dangerous' about something I wrote, whereas I simply wrote facts. At no time have I stated that the RCD on the input side and the RCD on the output side do the same thing. Nor have I written that the protective earth does the same thing. I think you *want* to read something which I didn't write. You are not an authority on this, you are an accountant. As for your 'expert friend', I have said before that he is welcome to join and give his own views. Otherwise, I want to hear no more about this or about him.The AG1500 makes no mention of output RCD's. So it appears not to have equivalent protection. The PS by contrast appears to recognise the need for output RCD's to afford equivalent protection to that required by most modern wiring codes on the installation wiring itself. While there appears to be no legal requirement to do that, one cannot but applaud the sensible and responsible approach they take. I am not trying to teach you Martin. I am concerned that statements made can be, and very often are, dangerously misinterpreted. It is incorrect or ambiguous statements that are dangerous - and not necessarily the appliances they refer to. I see no benefit or merit in incorrect statements being made - and that is particularly so where they may relate to safety. If someone says all LP's should be played at 44 1/4 rpm, - well they are wrong, but what harm can it do? I will revisit the earlier posts factually.
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Post by pinkie on Nov 14, 2016 9:21:28 GMT
I can't understand the issue or the problem. The earth continues through the regenerator and protects all its equipment. The RCD will trip if there is a differential in the circuit and again will protect the equipment. These things have been used by the thousands in studios, offices, hospitals and homes without issue. You will love the sound quality improvement. Fact: this is a response to questions asked and responses made on the forum. It is appropriate for me as a forum member to be able to respond to them Fact: The issue or the problem is Kevin wanted to know if his domestic RCD's would provide protection for a fault which should be protected by those domestic RCD's on the consumer unit occuring on equipment or cables attached to the output of the regenerator he was enquiring about. He has a daughter under 2 years old who is fascinated by his music and touches things and he is concerned for her safety. Assumpition : Kevin was probably referring to "extra shock protection" - the RCD detecting a small current leak very quickly to prevent electrocution. Rather than referring to the need for a low current trip to protect a Class I device in an installation with a TT earth (as we have in France). Fact (subject to correction - my French is good, but technical subjects are tricky) Note the French TT arrangement does not include bonding neutral to earth in the house. Accordingly the ONLY protection for stray voltage on the chassis of a class I device in a French house is the local earth spike. - Regulations require the impedance for that spike should be less than 100 ohms
- Class I protection relies on the idea that if a live cable touches the metal case, that case is "shorted" to earth, and the protective fuse(s) blows. This is as much for fire prevention as electrocution protection. A short on such a device in Martins house with an earth impedance of 1 ohm will cause a 230 amp current to flow, which will blow any fuse.
- A "short" of 100 ohms to earth on the chassis of the equipment in Kevins or my house would cause a current of 2.3 amps to flow. That will not blow the fuse (miniature circuit breakers) on our fuseboards. It might blow the protective fuse on my Quad 405-2. Clearly it depends on the fusing arrangements of the connected equipment as to how serious an issue this is. Some equipment has no internal fusing and relies on UK plugs, or consumer unit mcb/fuses. This is why RCD protection is mandatory in France.
Fact: "The earth continues through the regenerator and protects all its equipment" is at best misleading, and in the context of Kevin's question as I defined it - Irrelevant. As such, in context, it is incorrect. - You do not need an earth in the appliance for consumer unit RCDs to protect against electrocution risk on the device or cables connected to it. If you did - no Class II device or its cables would be protected by RCD's since they have no earth cable ("through" or otherwise). Manifestly this is not the case.
- The purpose of the "through earth" is to provide (FOR CLASS I devices only) the "short" protection for a live voltage on the chassis. (Nb - France and 100 ohm earths ALSO NEED an RCD for this protection)
Fact: You do not need any earth connection in the wiring for an RCD to be tripped. All that is needed to trip an RCD is for a sufficient current differential on its poles. Simplified for my consumer unit - if there is more than 30ma difference between the current in the live pole of an rcd and the neutral pole of that rcd for more than 5 milliseconds then the rcd will open the connection (break it) on the live and neutral poles (we have dual pole rcds) and cut the power to that circuit. All an RCD measures is a current differential. It knows nothing at all about how much current is flowing in any wire with a green and yellow sheath. Indeed - the primary "route to earth" it is protecting in NON TT installations is an unintended connection to earth through a human or animal body. The issue is that if some of the current is flowing to earth through a person, is not flowing through the neutral wire - although all of it is still flowing through the live wire - and this means the current in the live and neutral wires is different, and that means the RCD trips This is one of the best explanations of RCD's I have found, to explain how they work how rcds work The animation cycles through a bit too quickly I find, but if you read the 5 stages, then watch the 5 pictures you should get the idea.Fact: An RCD can only protect a difference in the current flowing through it. The current flowing through it will be part of a PHYSICAL circuit. It will only trip if the neutral leg of that PHYSICAL circuit has a different current from the live leg of that PHYSICAL circuit. If you add a transformer in the circuit (lets keep this simple - a theoretically perfect lossless 1:1 transformer - I know they don't exist but it keeps the sums simpler), then a current flows in the PHYSICAL circuit which is connected to the RCD, whenever a current flows in the secondary of that transformer, and it is the same current. The current which flows depends on the load on the secondary. If there is a 230 ohm load on the secondary, 1 amp will flow in the secondary PHYSICAL circuit, and that will cause 1 amp to flow in the PHYSICAL circuit connected to the primary. That current in the primary circuit will be the same in both live and neutral legs. Fact: It does not matter where the current flows in the secondary - as long as a current is flowing through it somewhere, it will induce a current to flow in the primary, and that current in the primary will be the same on the live and neutral legs UNLESS THERE IS SOME OTHER PATH FOR THE CURRENT ON THE PHYSICAL CIRCUIT OF THE PRIMARY. A diagram is easiest (more complicated than I first thought - and now very scruffy - have now posted one)
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Post by Sovereign on Nov 14, 2016 9:54:30 GMT
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Post by Stratmangler on Nov 14, 2016 9:58:29 GMT
Fact: this is a response to questions asked and responses made on the forum. It is appropriate for me as a forum member to be able to respond to them Fact: The issue or the problem is Kevin wanted to know if his domestic RCD's would provide protection for a fault which should be protected by those domestic RCD's on the consumer unit occuring on equipment or cables attached to the output of the regenerator he was enquiring about. He has a daughter under 2 years old who is fascinated by his music and touches things and he is concerned for her safety. Assumpition : Kevin was probably referring to "extra shock protection" - the RCD detecting a small current leak very quickly to prevent electrocution. Rather than referring to the need for a low current trip to protect a Class I device in an installation with a TT earth (as we have in France). Fact (subject to correction - my French is good, but technical subjects are tricky) Note the French TT arrangement does not include bonding neutral to earth in the house. Accordingly the ONLY protection for stray voltage on the chassis of a class I device in a French house is the local earth spike. Regulations require the impedance for that spike should be less than 100 ohms. Class I protection relies on the idea that if a live cable touches the metal case, that case is "shorted" to earth, and the protective fuse(s) blows. This is as much for fire prevention as electrocution protection. A short on such a device in Martins house with an earth impedance of 1 ohm will cause a 230 amp current to flow, which will blow any fuse. A "short" of 100 ohms to earth on the chassis of the equipment in Kevins or my house would cause a current of 2.3 amps to flow. That will not blow the fuse (miniature circuit breakers) on our fuseboards. It might blow the protective fuse on my Quad 405-2. Clearly it depends on the fusing arrangements of the connected equipment as to how serious an issue this is. Some equipment has no internal fusing and relies on UK plugs, or consumer unit mcb/fuses. This is why RCD protection is mandatory in France. Fact: "The earth continues through the regenerator and protects all its equipment" is at best misleading, and in the context of Kevin's question as I defined it - Irrelevant. As such, in context, it is incorrect. You do not need an earth in the appliance for consumer unit RCDs to protect against electrocution risk on the device or cables connected to it. If you did - no Class II device or its cables would be protected by RCD's since they have no earth cable ("through" or otherwise). Manifestly this is not the case. The purpose of the "through earth" is to provide (FOR CLASS I devices only) the "short" protection for a live voltage on the chassis. (Nb - France and 100 ohm earths ALSO NEED an RCD for this protection) Fact: You do not need any earth connection in the wiring for an RCD to be tripped. All that is needed to trip an RCD is for a sufficient current differential on its poles. Simplified for my consumer unit - if there is more than 30ma difference between the current in the live pole of an rcd and the neutral pole of that rcd for more than 5 milliseconds then the rcd will open the connection (break it) on the live and neutral poles (we have dual pole rcds) and cut the power to that circuit. All an RCD measures is a current differential. It knows nothing at all about how much current is flowing in any wire with a green and yellow sheath. Indeed - the primary "route to earth" it is protecting in NON TT installations is an unintended connection to earth through a human or animal body. The issue is that if some of the current is flowing to earth through a person, is not flowing through the neutral wire - although all of it is still flowing through the live wire - and this means the current in the live and neutral wires is different, and that means the RCD trips Fact: An RCD can only protect a difference in the current flowing through it. The current flowing through it will be part of a PHYSICAL circuit. It will only trip if the neutral leg of that PHYSICAL circuit has a different current from the live leg of that PHYSICAL circuit. If you add a transformer in the circuit (lets keep this simple - a theoretically perfect lossless 1:1 transformer - I know they don't exist but it keeps the sums simpler), then a current flows in the PHYSICAL circuit which is connected to the RCD, whenever a current flows in the secondary of that transformer, and it is the same current. The current which flows depends on the load on the secondary. If there is a 230 ohm load on the secondary, 1 amp will flow in the secondary PHYSICAL circuit, and that will cause 1 amp to flow in the PHYSICAL circuit connected to the primary. That current in the primary circuit will be the same in both live and neutral legs. Fact: It does not matter where the current flows in the secondary - as long as a current is flowing through it somewhere, it will induce a current to flow in the primary, and that current in the primary will be the same on the live and neutral legs UNLESS THERE IS SOME OTHER PATH FOR THE CURRENT ON THE PHYSICAL CIRCUIT OF THE PRIMARY. A diagram is easiest (more complicated than I first thought - and now very scruffy - will post later) Any chance of making the above easier to read? Dense blocks of text make reading difficult.
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Post by pinkie on Nov 14, 2016 10:22:13 GMT
Any chance of making the above easier to read? Dense blocks of text make reading difficult. Sorry its not easy to read. I'll have a go later maybe - and post a (not very neat) illustration in a mo. I have a few other things going on, and whilst I feel it important to address a safety issue which I made a point of having properly explained to me, I have other priorities just now.
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Post by MartinT on Nov 14, 2016 10:27:24 GMT
I am not trying to teach you Martin. I am concerned that statements made can be, and very often are, dangerously misinterpreted. Now we're in agreement at last. If I make a statement and it is misinterpreted, as you did mine, it is not my problem, it's yours for not reading the words as I wrote them. Let's be clear: no-one here wants anyone to have an accident with equipment. Safety first and all that. However, there is a case for dramatic over-statement of the dangers, which is what is going on here. How many millions of battery-backed computer UPSs are in use around the world? The implementation is very similar to regenerators. I have some 15 in the network I run at work. If there had been an epidemic of problems, do you not think we'd all have heard of them by now? Secondly, the system in France appears to be different from the UK, so localisation of the warnings seems appropriate. If we can keep this thing in perspective and not bandy around emotive words like 'dangerous' and 'children' as if we don't care about the consequences, then we won't fall out over it.
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Post by pinkie on Nov 14, 2016 10:31:02 GMT
Sorry - not very neat and makes the simplifying assumption of a perfect transformer with no losses. And I am not going to blush much if an engineer corrects the ammeter values. They will be close enough to make the point.
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Post by Deleted on Nov 14, 2016 10:43:49 GMT
My primary concern is my daughter and her safety. Every time I put a record on, she asks/demands to come upstairs. She is very inquisitive. If I had to box up the HiFi to keep her safe, then I would - no questions asked.
Power Inspired have confirmed that the Regenerator will not mask a fault from an RCD, as the leakage to earth in the case of a fault will cause the RCD to trip. That is if the Regenerator does not shut down first....
It seems safe to me.
Apparently, not all regeneration units do this.
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Post by Sovereign on Nov 14, 2016 10:49:43 GMT
That is what I found, but I had never gone to the lengths to find out. Glad to hear all is safe.
I was fortunate when my daughter was that age, when I said no, she would stop in her tracks. She was such a good child I didn't want to chance it by having another 😜
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Post by pinkie on Nov 14, 2016 11:47:23 GMT
My primary concern is my daughter and her safety. Every time I put a record on, she asks/demands to come upstairs. She is very inquisitive. If I had to box up the HiFi to keep her safe, then I would - no questions asked. Power Inspired have confirmed that the Regenerator will not mask a fault from an RCD, as the leakage to earth in the case of a fault will cause the RCD to trip. That is if the Regenerator does not shut down first.... It seems safe to me. Apparently, not all regeneration units do this. See my recent diagram Kevin. Its not specific to Balanced Power or Mains regenerators. RCD's can only detect faults on circuits physically connected to them. There will be no physical connection on the brown and blue wires coming out of your regenerator to the brown and blue wires running through the RCD's (I know the colours are different here in France, but you know...). A fault on the output of your power regenerator could no more trip the RCD on your consumer unit than it could mine - for the same reason - they are physically isolated. It's testable. linkrcd tester Conforama stock them. It's on my shopping list. I am assuming it connects a load at the plug between live and earth which runs a selectable current of less than 35ma and consequently trips the house RCD. That is the test you want. Something which when you plug it into the wall trips the actual RCD on the consumer unit, rather than lighting up an LED on the device to say "its good" The 2nd version - the "its ok light" I am buying in the UK on next week (because I can't find one under E300 in France). It DOESNT trip the house RCD's (because lets face it, its a pain when all the electrics go off and have to be reset). This is called an "earth loop impedance tester". What it does is send a tiny test current between live and earth and measure it - and from that it calculates the implied impedance between live and earth. The current is tiny enough not to trip the RCD's. But it works out the loop impedance. That is what all French sparkies plug in (that I have encountered). In the UK my sparkie client tells me that they do the test on the input side to the consumer unit. This is because we often have a lower impedance earth from the electricity supplier in the UK and so it doesnt muddle the measurement by measuring the impedance of the household wiring (a separate test). Here I guess they figure they are only trying to make sure the sum of the 2 impedances is below 100 ohm and so its perfectly acceptable to measure it at the socket. If you know what the supply impedance is (with my UK sparkies measurement) then you can work out the impedance just for that socket, and detect faulty sockets (detached earth wires etc). However, that will tell you the impedance between the live terminal and earth and not check that such a connection trips the RCD. It will read the same for a socket in the wall as it will for a socket on a transformer (BPS, regenerator , bog standard transformer). Because it is measuring the impedance between the live wire in that socket and earth - which is a "through earth". It is not checking that if you allow a current to flow between the socket live and earth that it will also cause a current to flow through the RCD live and earth. Well, obviously it wont - because the transformer isolates it. Be careful - not all tests are what they seem to be. For example - if I press the "test" button on the RCD on the consumer unit in my office, it trips that RCD. It doesn't trip the RCD at the main board in the house. (well, not yet it hasnt). I hope that tells me that the earth in my office has an impedance of less than the value needed to trip an RCD in spite of me building a patio over the earth spike, and that is why I am reasonably chilled about the French sparkie taking over a week to come out and test it for me properly. But that test should have caused a 30ma current to flow between live and earth in the office. That should have caused the same current to flow in the house on the main RCD. Of course - its a race to see who trips first, but to date the office one always wins. I have revised my illustration. Red is the earth loop impedance test, measuring Z between live on the secondary and earth. Note that is not the same thing as seeing what happens when a current flows through the green connection. The green connection will trip the RCD. The red one won't, although it may achieve (and should achieve) a result of Z<=100 ohms.
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Post by Deleted on Nov 14, 2016 12:42:16 GMT
That is what I found, but I had never gone to the lengths to find out. Glad to hear all is safe. I was fortunate when my daughter was that age, when I said no, she would stop in her tracks. She was such a good child I didn't want to chance it by having another 😜 My daughter is well behaved, but you can't keep an eye on her all of the time. Anyway, the order has been placed. If it makes no difference, or tests unsafe with an RCD tester, it is going back.
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Post by pinkie on Nov 14, 2016 14:16:53 GMT
However, there is a case for dramatic over-statement of the dangers, which is what is going on here. Secondly, the system in France appears to be different from the UK, so localisation of the warnings seems appropriate. If we can keep this thing in perspective and not bandy around emotive words like 'dangerous' and 'children' as if we don't care about the consequences, then we won't fall out over it. Yes - that sounds good to me Martin. On the subject of over-statement of the dangers, I am more concerned about folk not being so anxious to defend their toys that they make statements that are misleading. I grew up in a house with a bakelite fuseboard, 6 circuits, fuse wire protection on each, rubber wiring, a Bush valve radiogram, Bush valve wireless, Bush valve TV (you start to spot a certain brand loyalty after a while) and self-evidently no RCD's and lived to tell the tale as did millions of others. That doesn't mean that modern devices designed to further improve safety are pointless And it doesn't make it right to make statements about those safety devices which defy basic circuit theory and elementary electromagnetism. The statement "in my opinion, it is perfectly acceptable to use circuits which are not protected by RCD's. The primary benefit of such devices is wet bathrooms, and outdoor power tools, and not HiFi" is reasonable - especially expressed as an opinion. The statement "An RCD on the primary of a transformer can detect a circuit fault on the secondary, and there is no benefit in fitting RCD's to the secondary of a transformer" defies physics, and does so in a way which can mislead people about how their safety devices work.
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Post by Sovereign on Nov 14, 2016 15:12:39 GMT
For what it's worth, when I was using the AG1500 and I made my DIY mistake, the AG1500 and the RCD tripped at the same time. We mustn't forget that we live in Britain, and as such the products sold to us have to meet extremely high safety standards to be able sold to the British public. We are a very well looked after people.By James. Sadly that statement about safety standards is not true. The bps you sell have no CE mark - just one example of the grey areas where safety standards are not able to protect. And there are lots of misunderstandings about electricity. I don't know what the fault was on your AG1500 but possibly either you confused an mcb with an rcd as others have, or the faulty AG1500 tripped the rcd. It's pretty simple. Buy an rcd tester on ebay, use an adapter for your non standard power sockets and see if you can trip the house rcds with an rcd test fault on the bps output sockets. I am back for a week on 21st although my priority is visiting my sisters boyfriend who has terminal lung cancer and my wife's mother who is going in for bowel cancer surgery, and not playing with hifi, but I'll pack a tester to bring round if we both have time. They are less than a tenner though. Richard, you have the wrong end of the stick again. Of bloody course I'm not referring to DIY products here, forgive me I presumed that that was blatantly obvious. Surely the context that we are talking about was mainstream manufactures such as the Power Inspired company in question. In my posts above, I very nearly made a comment about cottage industry manufacturers, as this is a grey area. But as you had a big campaign last year against a small cottage manufacture (rightly or wrongly), I didn't want to drag it up. For the record, I am not commercially selling balanced power supplies. I tend to make most of them for myself as each of them are different and I genuinely enjoy the experimentation and people end up buying these. Hence the fact that my next DIY balanced project I am making a BPS using a IE transformer as I have not ventured here yet and there has been a lot of talk about these transformers, I would offer it to you but it is already spoken for if I don't decide to keep it. Anything I pass on I only just about cover the material costs on each of them, if that. My time I don't charge for as it is a hobby and I am in no way a professional here, as I have repeated many times!!! Each unit is checked over by an EIC IEC electrician for safety and PAT tested, I also make the next owner completely aware of the scenario. With their consent I could sent you the emails of each person and you can see that all the above it spelled out in the emails between us. BTW I have not confused an RCD with a MCB! If you re read my posts clearly, you will see that I have not mentioned that there was a problem with my AG1500 regen, it was a silly DIY mistake that I made and the trip within the AG1500 regen caught it.
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Post by pinkie on Nov 14, 2016 16:04:21 GMT
James I know you work with care and would not consciously do anything dangerous. But by your own admission, you rely on others for an understanding of some of your projects, and "follow a recipe". My point was that the high UK standards are not perfect. And specifically on the use of transformers to supply mains voltage to other applieances, they don't even contemplate it. There are rules for how the appliances should be built - and manufacturers comply with them. The devices themselves are properly built, tested and safe.
There are rules about how electrical installations should be installed and tested and they are complied with. Nothing deals with the interface between the 2. There is no law anywhere saying "having required RCD's to be installed in a house we require nobody to design and sell something that might render them ineffective".
I have no issue with your hobby. Nor did I have a campaign against a manufacturer. I have no issue with NVA - as a business, and certainly no desire to gratuitously harm it. My issue, as outlined in my earlier post was with potentially dangerous statements rather than any manufacturers products.
I found it quite astonishing how a righteous indignation consolidated and enabled an important subject to be misunderstood, and simple electric circuit theory disregarded - and nobody bothered to just test it - but all determined to be sure they were theoretically right in the absence either of a reasoned electrical explanation, or a simple inexpensive test.
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Post by pinkie on Nov 14, 2016 16:13:39 GMT
The PS Audio P10 has an inlet fuse and an output RCD to protect equipment that it feeds. I don't know the AG1500, but hopefully it would have a similar level of protection. You will appreciate by now I take an interest in trying to properly understand this subject. I have read the P10 user manual and can find no reference to an RCD on its output. There is reference to a trip in addition to a slow blow fuse. The trip specifically states it is a high current trip (equivalent to an mcb on a consumer board). The following is an extract from the manual Reset Button: It is white and inscribed with a numeral written in red to denote that the amperage of the circuit breaker. If the PerfectWave P10 is driven to output more than its maximum usage
output) the breaker will trip and the unit will shut down. Please reduce the load connected to the P10 by removing high-current-draw components thereby bringing the unit’s wattage output within acceptable range, reset the circuit breaker by pressing the white button, and power on your PerfectWave P10. 240V units employ a 10 amp circuit breaker, whereas 120V units employ a 15 amp circuit breaker
a 10 amp circuit breaker is assuredly not the same as a 30ma 5ms RCD. Where is the RCD? How is it reset ?
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Post by MartinT on Nov 14, 2016 16:55:56 GMT
I have read the P10 user manual and can find no reference to an RCD on its output Very well, it's a high current trip. I got that from a review last night as I can't find my manual. Should have checked more carefully. It makes no difference - the bloody thing is safe and I remain happy to use it. Any fault on the output is going to generate a circuit shutdown as there are several failsafes within the sensing circuit. I quote: You don't need RCDs when you have a properly designed active circuit with clamping. This preoccupation with RCDs is getting a little silly. If you can quote any situation with a BMU or regenerator where harm was caused then it's such an isolated case that it's not readily findable.
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