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Old 04-08-2008, 11:59 AM   #1
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Default Can I run 208/240v in one room of my house easily?

I have a computer room that also has a LCD TV and surround sound system. Everything plugged into a wall outlet can operate on 240v.

Would it be expensive for an electrician to setup a single 208 or 240v circuit just for that room?

I'm thinking I could end up with less power usage overall and longer equipment life.
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Old 04-08-2008, 12:08 PM   #2
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Uh, your device will use the same amount of power, regardless of the supply voltage.

No, it wouldn't be very expensive for an electrician to run one 240 circuit to your room, but, you really don't need one.
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Old 04-08-2008, 12:10 PM   #3
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would be less amperage, but wattage would be the same. no point.
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Old 04-08-2008, 12:25 PM   #4
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unless your amp requires 240V, it is unnecessary

Oh and running a line like that costed me 500$
Install new breaker, run line, make connections
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Old 04-08-2008, 12:28 PM   #5
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About the only reason to do that is if your equipment is going to pull > 15A at 110, otherwise there isn't much benefit.
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Old 06-03-2010, 08:37 AM   #6
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I'm glad people seem to have some common sense here. High voltage is more efficient over long runs (transmission lines), or in cases where the current draw to cable size ratio is high (A/C, heater, air compressor). In the second case, it is typically not cost effective to go with any larger wire than already in use.

The efficiency increase you would see in this situation wouldn't pay for the install over the life of a home... heck, it might not even pay for the breaker.

Sources: BSEE 2001, specialized in power generation and transmission since.
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Old 06-03-2010, 08:56 AM   #7
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You bumped a 2 year old thread for that?
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Old 06-03-2010, 08:59 AM   #8
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Originally Posted by chapstien View Post
You bumped a 2 year old thread for that?
Well, nobody gave a correct answer other than WRteXan. <shrug>. The main problem is the OP didn't know what he's talking about. 208v is 3-phase derived from 3 120v phases whereas 240v is a single phase standard (120v is a half-tap of a 240 transformer so a 240v supply would need to be provided unless he already has it). No consumer electronics give you the option of using single-phase or 3-phase.

Last edited by nhluhr; 06-03-2010 at 09:04 AM.
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Old 06-03-2010, 08:59 AM   #9
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You're trying to confuse us with your "208" volts, aren't you? 208V is a 3 phase voltage in the US. I'm going to doubt you have 3 phase power to your house.

ahh crap, it is 2 years old
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Old 06-03-2010, 09:26 AM   #10
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Originally Posted by chapstien View Post
You bumped a 2 year old thread for that?
To be fair, he complimented us.
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