Dave Cramer On 14 March 2015 at 09:07, Russell Reiter <[email protected]> wrote:
> I'm not sure what happened here but I just replied to Lennart's post and > then got James and the others posts on this thread. Toasted tower = New > tablet = New learning curve. > > I see that most don't buy into my theory and in fact I have a hard time > with it myself, which is why I posted it to the list. Clean power is > important to people, perhaps more so today than at any other time in our > development as human society(ies). > > Given that most computers now use switching power supplies which are incredibly tolerant of voltage and phase I would like to hear the rationale to the above statement ? > We tend to think of most of the aspects of technology that we use today to > be cut and dried ie. Doctors provide medicine, lawyers provide legal > services etc. However, when you read the fine print you find that a person > is engaged in a medical or legal practice and I simply extend this > postulation to electrical practices. > > High tension electrical engineering is a quantative and qualitative > science. However, there is an almost mystical quality to electricity which > only first responding power workers experience first hand. Historically > this resulted in many deaths. Science recorded those experiential outcomes > and has adjusted it's own theories and practices accordingly. > huh ? > > Here is one of my war stories of sustainable development and the grid. > > I was working as a lead hand in the construction of a recording studio. > One of my responsibilities was to ensure the control room was acoustically > accurate. ie conforming to specifications. The mixing board was a half > million dollars of solid state logic circuit clusters. > > Ontario Hydro promises +- 3% flux in power but when we tested power on our > side of the isolation terminals we were spiking to 7%. Hydro took some time > to sort out what the problem was. Turns out that a auto body shop on the > same street had wired one leg of its welding unit out of phase and it was > sending spikes out all over the place. So instead of directing the owner to > wire it correctly, Hydro ran a new clean leg up to our unit. They did it > hot and in the rain, kudos to their skills and training. > > Why, because the cost of using the courts to cause conformity was more > expensive than the kludge they actually implemented. So whenever I'm > discussing power and someone tells me this is the way it is, I find myself > saying, no that is the way it should be. > > What a thing is and what it should be are two different things. One is a > theory and one is a fact. Facts which are uniformly agreed upon are > considered to be the status quo. Here is the status quo of north Americas > power grid as expressed by a British engineer lo these many decades ago. > "North America was wired with a great deal of optimism and little regard > for the common earth." > > So in my mind every poorly grounded home or miswired factory on the load > balanced grid is a potential source of problems which are not necessilarly > going to manifest themselves in an easily discernable manner. Converting > 60hz to 50hz can be done at any point in the grid if the proper equipment > is installed and could do a lot to clean up errant spikes which could > adversely affect expensive computer controlled equipment. > > One of the first things a welder learns is how to orient themselves in > respect to the unit so they don't cook their liver when they operate the > equipment. > Can you explain? What causes their liver to cook ? > If a programming environment may be described as an ecosystem, which it > often is, can we not also allow for mystical qualities - that some things > happen behind the scenes and they may be things of which we, as end users, > are not fully aware. > > One further point. The current state of EM warfare is so advanced that any > major municipality who is not hardening its grid is doing a significant > disservice to its population. Nothing of what I have said is beyond the > possible realm of the current state of things. > > In fact recently 27 US sailors asked to be relieved of duty after a soviet > jet disabled their warship in the black sea. The soviets used an EM weapon > to disable all command and control systems and flew simulated attack > sorties over the ship till they ran out of file and went home. > > reference ?
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