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#21
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![]() "John H" wrote in message ... On Fri, 6 Sep 2013 19:28:13 -0400, "Mr. Luddite" wrote: That project was a huge success, both for us and the UofR and it put my little company on the "map" so to speak. Good memories. Great story, but I didn't see how union involvement helped in any way. John (Gun Nut) H. ------------------------------ Oh, a union electrician was involved but he certainly didn't help. The facility administrators, being good do-bees, hired union contractors to install all the power wiring required in the lab where the system we built was installed. Without going into boring details, our system included a very large isolation transformer to power radiant heaters located inside the vacuum chamber. Without the transformer, the heaters would arc at certain vacuum levels and they are commonly used in the industry for this purpose. The transformers used are over-rated for the heater power requirements, so at full load they are operating at 75 percent of their rated capacity. The problem with them is that they get very hot in normal operation. The one we used with this particular system had a temperature rise rating of 150 degrees C (above ambient, room temperature). In our system it measured 118 degrees at full power. That is well within normal operation. The system was being run one day, developing the optical coatings required for the program. A union electrician was in the lab installing some unrelated wiring and noticed that the transformer was hot. He made a big stink about it and reported it to whomever he reports to. Next thing you know, I received a call requesting that I visit the lab immediately. I drove to Rochester and met with the project leader. I explained that the temperature rise was normal and well within the specs for the transformer. He knew that but said that because the union electrician had filed a report, the Director of the lab (the big guy) wanted to talk to me about it. The Director was a retired Navy nuclear sub commander and was referred to as "The Captain". He was a gruff SOB and still liked to bark out orders. He started the meeting by telling me that they were under a severe scheduling commitment, needed to use the vacuum system and he wanted it fixed, "NOW". I explained to him that there was nothing wrong with it. It was normal operation and showed him the spec sheets for the transformer. At first he claimed that the electrician who reported it said it wasn't normal and we got into a bit of a debate about it. He finally calmed down after seeing the specs but it became obvious that this was now more of a political issue with the city inspector and all getting involved. He asked me to "megger" the transformer (this is a process of applying high voltage to the transformer windings to test the insulation) and also for additional copies of the manufacturer's spec sheets, which I did while he conducted further investigation. He told me I was to remain "on site" until the matter was resolved. Well, I was in the Navy for 9 years but I wasn't about to take orders from this guy as a civilian. I told him (politely) that the transformer was fine, it met all electrical code specs in terms of ratings. The application was unique due to the system's process requirements but similar transformers were in operation in many other systems and I was leaving in the morning. I also told him that since he felt obligated to pursue it further with his contractors due to their alleged safety concern, I felt obligated to disable the control system so the system could not be used until he was satisfied everything was ok. That did it. He left, then came back a half hour later and apologized for the wild goose chase and told me he was satisfied the system was safe to operate. By now it was 6pm and he invited the project engineer, me and some of the lab techs to go have dinner and a couple of beers. Turns out he was a decent guy and we shared a few "sea tales". The problem that exists in this kind of technology is that the National Electric Code doesn't cover many of the unique configurations required for the design and operation of custom equipment like this. Just because it's not covered in the Code Book doesn't mean you can't do it. The requirements of the system and process supersedes the Codes if they are in conflict. The union electrician, unfamiliar with the equipment, jumped to conclusions and made a stink about nothing. He just reads the book. |
#22
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#23
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#25
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#26
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#27
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On 9/7/13 8:08 AM, Mr. Luddite wrote:
"F.O.A.D." wrote in message m... Got an email that came in after 11 pm last night from Apple...my iMac is ready to be picked up. One of the reasons why I like Apple is that the company from a customer point of view is run the way companies used to be run...on the basis of good service and keeping customers happy. Naturally, there are times when Apple fails but for the most part, it has done well by me. Yes, that service is reflected in its prices...as well it should be. ---------------------------------- My daughter works in a dentist's office and she inherited one of those 27" iMac systems (the ones with the computer guts built into the display) when the office updated their equipment. Mrs.E. saw it and has been "hinting" around .. i.e. birthday, Christmas, anniversary, full moon, whatever ... about how much she likes it and wants one. The only concern I have is I know nothing about Macs having used PCs all my life and since I am the resident IT department in our house, I really don't want to get involved with maintaining and upgrading a computer system that I am not familiar with or use. I really am not into computers that much. Just buy AppleCare when you buy the iMac (new iMacs supposedly are coming out in the next couple of months). There's a wide range of free classes plus first-rate phone help from English speaking techs who have no attitude. Most bigtime software works the same on a Mac as it does on windows, plus there are easy ways to run existing windows software on a mac. It takes about two weeks for an experienced windows user to get used to the differences in the mac operating system. You and your wife will have the usual couple of days of frustration, and then you'll see how easy it is to use a MAc |
#28
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#29
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UP!Dùng bia tiger nha bác
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#30
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