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Old August 6, 2007, 08:47 PM
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Default max dc voltage in north america?

oki here's the deal im in the market of getting a new psu in excess of 1000watt but how much voltage can the normal lines outpout in voltage?? is 230volt oki? or is it too much for the lines in montreal ? and if so what's the maximum so i could base my next psu on this info..
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Old August 6, 2007, 11:19 PM
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North America is regulated to 110-120 volts (w/ a few exceptions, like washer/dryer outlets).

I don't see why you'd want to go w/ 220-240 volts ...
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Old August 7, 2007, 01:36 AM
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well i guess ill go dual psu's then...
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Old August 7, 2007, 03:23 AM
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Frosty,

All regular wall outlets are on a 120V (already mentionned by Jmac), 15Amps breaker. (w/ a few exceptions, like washer/dryer outlets)...thanks Jmac!

Anything else you want can be done (by a Qualified electrician only).

Example...you use a paper shreader (office type) on the 240 V...you'll need a special dedicated circuit with a special prong/wall outlet combination (to avoid any "mishaps") and it can be done....by a qualified dude only. If you own a house, feasible...if you rent an appartment forget about it all.
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Last edited by Delavan; August 7, 2007 at 03:25 AM.
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Old August 7, 2007, 04:47 AM
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What you really need to look into is the amperage of your breaker or fuse. Even though the breaker is rated to 15A, this rating is for PEAK consumption and not CONTINUOUS consumption. A 15A breaker can safely handle between 12-13A of sustained draw.

When you factor that all together (13A @ 120V) you get a peak safely sustained power draw of 1560W. And personally, I can't think of ANY system you could put together which consumes that much power.

Even a 1000W PSU which has an efficiency of 80% running at 100% load would still "only" draw 1200W from the wall.

You have to remember, if you buy a 1000W PSU it does not draw 1000W all the time but draws whatever power (plus factoring in efficiency) is demanded of it by the components.
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Old August 12, 2007, 07:47 PM
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maybe i missunderstood the amp and voltage thing on psu oO so i should look at how much amp to be able to handle 2 hd2900 + dual core cpu etc... ????? 80A is it enough
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Old August 12, 2007, 08:46 PM
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what are on earth are you doing that even requires 1000w!
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