Square D QO (vs) Seimens
tom_in_sc
17 years ago
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greg_h
17 years agoRelated Discussions
30 amp oven vs $1,050 for upgrade to 40 amp
Comments (9)Hey stup - all I said was your helpfullness was confusing, and holly seemed to agree with me. Like I said , it's quite clear that you can save $$$ by wanting less. I.E. stick with the lower amp oven, that's obvious to everyone and didn't need pointing out. Your pointing it out is how you got misrepresented. for the record - and no irony included from last post : " toy - what guage wire is in your wall now, and how far is it to the electrical panel ?" If it's 8 gauge and less than 100 feet then you might consider just upping the breaker to 40 amps. If you have 10 gauge or the run is more than 100 feet, and you want a 40 amp oven - then you'll need a sparky to pull a new wire for you." And just to make it easier for some to follow: If your 40 amp oven restocking fee is less than $1050 , and a new 30 amp oven will cost the same or less than the orig. purchase price of the 40 amp oven , THEN returning the 40 amp oven will be CHEAPER than having all the work done. How's that for a run on sentence and a high school math problem ???...See MoreSquare D QO versus Homeline
Comments (5)The main dif between the QO and homeline is the Homeline has an aluminum buss and the QO has a tin plated copper bus. The breakers are almost the same mechanicly other than the Homeline has no visible trip window. I really don't know why anyone would not like the Seimens panels(all copper bus lifetime warrenty on the breakers)as they are priced right and high quality. If you are stuck on sq-d and are putting in a 400 amp service you must have an all electric home, so why skimp? Go with the QO...See MoreSquare D breakers very sensitive - Head scratcher!
Comments (16)Thanks for the excellent responses. Currently I can answer these questions. 1) Initially the service entrance voltage was 140 - 141V. Way too high. A transformer supplying power to our unit was changed and readings are now correct. Oddly, at 141V the tripping was just as frequent. I would have thought higher voltage would have lowered the Amps drawn, and there would have been less frequent tripping. Can this high voltage (for a couple of months during construction) have caused the breakers to become prone to tripping? Voltage is now correct at both ends of the run. No run is longer than 75 feet or so from the main panel. 2) I kept the nature of the equipment back as it might cloud the issue a bit. Yes there is an inrush as this is studio flash equipment. That being said, there is no problem using this gear anywhere else in the city (I have been). Even the 15A on the stove is fine, but even a 30A SqD trips repeatedly. The units plug in with standard 16GA cords. I have changed the cords to 15' 14GA heavy-duty high-visibility (orange and black) cords mostly for visibility. The equipment repair technician says a transformer charges capacitors and only basic switches and so-on are between the line-in and the transformer. No capacitors directly connected to the line-in. There is a 'slow' setting (or gentle) on the unit for situations where the units must work on non-dedicated circuits that already have significant loads on them. This 'slow' setting trips as often as the normal setting. Again, they work everywhere else (on normal setting), even the stove outlet. 3) Counterfeit: I compared a breaker to the photos in the article. #C is not identical. Most of my tab is exposed, not 1/2 as pictured otherwise they match. 4) Multi-wire branch: I think so, 1 Neutral for 2 circuits. A single unit can trip a breaker or several units at the same time can trip 1 or more breakers in no particular pattern. My previous set-up was 12GA 3-wire BX cables with 2-20A sharing 1 neutral with no issues. 5) The breakers are QO type HACR 20A. 6) An ammeter was put on the units. There is a very brief peak over 20A. It measures between 28 to just over 30A. There was some talk about this brief peak measurement being unreliable for an exact figure. A cheaper meter read anywhere from 20A-38A. A better quality Fluke was typically under 25A. The 30A SqD trips with the same frequency as 20A so simply swapping to 30A (even in the short term) isn't an option. Thanks for your knowledgeable responses and effort to help with this. Tom...See MoreClematis vs. Rose: The epic battle
Comments (38)Wow, Jackie - that's exactly the sort of pairing of clematis I was picturing in my gardens, particularly the Graham Thomas and purple clematis. That combination is to die for, and the rose and clematis are happily (and gorgeously) supporting each other. I can only dream of Graham Thomas getting that big and lush in my zone, even though Austins typically like my climate. Mine has never cleared 3 feet tall in 4 years, and even wimpy clematis like Nelly Moser would mow him down in a minute. It's good to hear the contrast of clematis being borderline in places like CA (not that I would wish it on you, but it's good to know). I thought tulips and once-blooming OGRs were the only flowers that didn't like California. Who woulda thunk it? Although frankly, your clematis look very happy just not thuggish. Harry, that is a terrific shot of the evolution of clematis-rose detente, and jaw-dropping wonderful clematis to boot. I hope Betty Corning was given new life in another spot, since she is breathtaking in her lush profusion. Ditto for Westerland, since I can only dream of my Westerland looking that terrific in the spot I have it. I'm glad to see you label Venosa Violacea, since I'm pretty sure that's the clematis I have creeping up on my hammock, but it barely reaches 6-8 feet so far and doesn't have that amazing explosion of color yet. Clearly it needs more sun and territory to conquer - I love the white star effect in the center. Beautiful pictures and fun observations everyone! Cynthia...See Moremike13
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