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#1
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How is every one ? (Electrical Question)
Well, It's been a while for me in this group! I hope there has not been
to many flame wars going on (atleast none that got out of control). Any-hows, I'm am at last starting on my studio after a long and drawn out quest for the right building (that I can afford). You guy's are not going to believe how lucky I got with this place! Its a standard city lot (small) with a 750 SF house (renovated two years ago) and a separate 1500SF building (9ft+ ceilings, one large room, one med. room and a few small rooms). The building is in need of some major work but I have cut a few deals with some people that I used to jam with that have extensive home remodeling experience. What I'm working on now is altering my original studio plan's to this new one I now have. I have so much more floor space now that my live room is twice as big, so I can now get a good size band/group in it. So I need to calculate for more power amp's and maybe even free standing speakers (if needed) etc. I was going with 40 amp breakers to start but now that I can accommodate more I'm thinking on going with a 60 amp for the whole works. I'm using a Power Mac G4 (with some hefty upgrade's) and the old MOTU 24i, I don't have much on the lines of out board gear (about a dozen units) and one small Crest rack mount analogue mixer. Speaker wise I'm sticking with the Tannoy Reveal active's and two Tannoy 5.1 subs (100 watts each), I'm sure I will be up grading the console to something bigger at some point and maybe a pair of small speakers added as well. I don't think that I can go with much more speaker (maybe more sub) given the size of the control room. The main live room will be good sized (almost 20 ft X 20 ft), so I was wondering what some of you guys think, 60 amps good enough? |
#2
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bruwhaha58097238 wrote ...
The main live room will be good sized (almost 20 ft X 20 ft), so I was wondering what some of you guys think, 60 amps good enough? If you think in terms of number of circuits, 60 amps is three 20-amp circuits, or four 15-amp circuits. I would start out thinking about four circuits for the main room and another 4 at least for your control room. You don't really mean 40A or 60A breakers for each branch circuit? May not even be legal. Domestic branch circuits are typically 15A or 20A each. Wire gauge and number of outlets for each branch circuit may be regulated also in your jurisdiction. Any of your fiends happen to be electricians? :-) |
#4
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Richard Crowley wrote:
bruwhaha58097238 wrote ... The main live room will be good sized (almost 20 ft X 20 ft), so I was wondering what some of you guys think, 60 amps good enough? If you think in terms of number of circuits, 60 amps is three 20-amp circuits, or four 15-amp circuits. Only if those 15/20 amp circuits are completely full. If you use the 50/60A to feed subpanel you can put more branch circuits on the subpanel. |
#5
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On Wed, 01 Jun 2005 16:39:23 -0700, Kurt Albershardt
wrote: Only if those 15/20 amp circuits are completely full. If you use the 50/60A to feed subpanel you can put more branch circuits on the subpanel. The 80% rule for continous loads still does apply. The NEC defines continous as 3 hours or longer. Outlets are cheap. Breakers are moderate. Labour to install them is insane. Be very generous with your circuits the first time G. If you are using a window (packaged unit) HVAC be sure to allow a seperate (120 or 220 depending on size) circuit for that. , _ , | \ MKA: Steve Urbach , | )erek No JUNK in my email please , ____|_/ragonsclaw , / / / Running United Devices "Cure For Cancer" Project 24/7 Have you helped? http://www.grid.org |
#6
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Steve Urbach wrote:
On Wed, 01 Jun 2005 16:39:23 -0700, Kurt Albershardt wrote: Only if those 15/20 amp circuits are completely full. If you use the 50/60A to feed subpanel you can put more branch circuits on the subpanel. The 80% rule for continous loads still does apply. The NEC defines continous as 3 hours or longer. Of course, but you're still more likely to get full utilization with a subpanel. Otherwise you'd have to move loads back and forth between those 20A circuits to keep them all at 16A. If you had five branch circuits you could more easily hit the 48A total... |
#7
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Sorry guy's I wasn't clear enough. I was thinking about 60 amp's over
all, the main box in the building is old (1941) with a pull out main and screw in 20 amp fuses. There is an updated box (lot's of switched breaker's) in the area where the live room is going to be, it's feed is from the old box in another room. There are 2 breakers that are 30 or 40 amp (I can find out for sure witch) in the new box that have two hot and two neutral (and earth) in each lead, the hots are both 110 volts. There is a plethora of unused 20 amp breakers in this box that have no purpose at all so I can rout a few for the needed power but there is no main breaker in the new box (that bothers me a bit). I like the idea of running a sub box just for the studio but it will cost time, labor and cash to do so. I was thinking about going with more than my current needs just in case I expand to a larger format console (Neve or the likes) and a 24 track Studer (they both run on 220 correct?) but it's not immediate. Maybe running a circuit to each room (3 in all) on a 20amp breaker's and an extra circuit for utility (lava light's or anything a client want's to bring in for there mood setting's) in each room as well. The quote for electrical work I received from the heating and air company was $1200.00, they will also move the gas pack unit to a location farther away from the live room. He also hooked me up with a drafting company for plan's to submit to the city for my commercial building permit (don't know what that part's going to cost), they want to see everything before and after! The buddies that are helping me with the construction are carpenters. Thanks for the reply's and I keep you good folk's posted. Raymond Ward A.S. Recording Arts |
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