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Seriously
Honorary Master
- Joined
- Nov 29, 2012
- Messages
- 16,596
Only in your head and only you believe yourself.
I responded with these quotes to show you again how your circular arguments and BS you post confuse your neurons as you consistently claimed I raised the issue of the high power appliances. I now showed you it's not true and that you are talking BS once again. I merely repeated the same questions by using your own examples hoping for clarity Up to now you still have not substantiated any of your BS claims. Your strawmen rhetoric you use as a tactic as your escape route to detract from and willfully refuse to answer the direct questions asked. It's very clear for everyone to see and it's the exactly the same methods you deploy in PD as that is all you can and know how to do when you cannot answer the questions posed to you. Here again you diverted from the direct questions I asked in my prior post.
It's very clear from member responses to your unsubstantiated BS claims in this thread that your "support" is not validly placed at all and some members actually stated bluntly that you are trolling this thread. The fact that most left the thread not willing to respond to your BS claims and fiction should also be a clear indicator for you.
You can use solid core or stranded cables but there are pros and cons for both depending on certain environmental and installation circumstances or limitations. Thus this will depend on the specifications or criteria used by the designer/installer as well as his preferences and legal as well as physical design requirements and specifications. It is common knowledge that solid single core is used in long runs where the lack of flex will not be an issue. Maybe Isheed_cn could give you his suppliers number and he can then give you the reasons for his preference and clarify his decision first hand. See in this link if you can spot the clues as maybe why some suppliers recommends or have preference for the solid core or stranded cable.
http://www.engineeringtoolbox.com/wire-gauges-d_419.html
You yourself have agreed!You stated yourself that specific modifications need to be made to accommodate the use of 12VDC by altering the plug sockets to a different type so that accidents can be prevented in case someone plugs the wrong device in the wrong socket. You also stated that you "suddenly" support a dual system of 220VAC and 12VDC after you realised the fallacy of your claims. Now explain to me how it would be possible to achieve without pulling in additional copper wire for the 12VDC circuits to add to the existing 220VAC circuits. (Maybe you want to consider multiplexing?) You will also have to chase new conduit to accommodate the extra circuit wire and install the extra special plug points as well as accommodate new breakers or fuses in the DB board? Do you see where your circular reasoning and arguments leads to? I doubt sincerely by now.
Thus to answer your question then there is no way to get away without extra costs and wiring to have a dual system as explained. The same applies if you are converting an existing circuit to 12VDC as a "total solution" to compensate for the copper resistance and I2R heat losses. THUS I agree with his statement for the simple reasons that follows:
-I have already shown you in calculations and explained that the current limitations of the standard 2.5MM2 copper wire at 12VDC due to the copper resistance and thus I2R heat losses requires higher capacity cable for even low nominal wattages (360W at 12VDC 30Amps Your example)
-Considering the fact that in a home environment where a single 2.5mm2 wire pair is used to feed various sections of a home limits the the amount of devices you can use on such a line is at any one time.
Let me explain to you again that if I have my PC on one such circuit and my kid runs his laptop on the same circuit in his room and my wife starts the, "now modified 12VDC egg beater" in the kitchen on the same circuit I am going to lose power to my PC as the line capacity cannot handle the total load. So it must be safe to accept then, unless you are Swa, that the home would have to be split in more circuits requiring more wires of possibly higher capacity, than the 2.5MM2 wire can provide, to overcome the DC I2R losses due to the line resistance.
Thus in short you will need more circuits, thus extra "breakers" or trip devices and/or fuses and larger diameter wire of higher capacity. If you cannot grasp that simple concept by now then you never will.
Your solution would probably be:
-to only switch on one device at any one time per circuit depending on capacity required.
(maybe have a Eskom type load shedding table for the family so each have a fair share of the limited 12VDC capacity available to themselves for use on that one circuit.)
-Forego of egg beaters and all other "Swa deemed unnecessary" appliances
-Use 220VAC which most of the people adopting solar with inverters are doing anyway
-Still waiting for Swa's solutions to questions asked
-Waiting for Swa's new BS thumbsuck idea. (Like manufacturers will have to convert and design futuristic DC appliances, say how about a fusion powered egg beater?)
That is a claim someone else made and your response to that was that the manufacturers would have to adapt and people have to accept that they will have to do without those appliances and/or wait for the new era in 12VDc technology to arrive. You even stated, to confirm your BS argument, that there was power before appliances.
Many devices do have 12vdc motors and circuits internally and some may be modified to be used directly on a 12VDC bus. But again the circuit limitations of current capacity is the main problem. Stepping the power up to 220V or any other DC voltage at the point of use, still leaves you with the original problem of the reduced current capacity at a 12VDC source over the standard 2.5MM2 copper wire.
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Most of us already established from your posts and BS arguments and thus confirmed that you know Fall about this topic and are just posting any thumbsuck BS idea entering your head to troll this thread.
Maybe just give us a summary of how you, DR Swa PhD in electrical, electronic and solar solutions, would see DC Power as the total solution for South Africa in the home environment. I will be waiting in angst as I do not expect anything forthcoming.
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