How much power am I really using on this circuit?
Background: I recently put in a new circuit to stop blowing the breaker on a line that shared my washer, dryer, and dishwasher. Hurrah! So, I got to thinking...
Question: I have a LOT of computer gadgets plugged into a circuit, but I never seem to have any problem with it. However, when I add up all the input amps for gadget chargers, computers, etc, I wonder why am I NOT blowing a circuit breaker?
Example (assuming my math is correct):
12 Amps for desktop computer #1
10 Amps for desktop computer #2
(hmm, should have blown a 20 amp circuit already?)
3 Amps for 6x60w light bulbs
2.5 A for an HP Laptop charger
1.3 A for a Dell Laptop charger
1.5 A for an external Monitor#1
1.0 A for an external Monitor#2
2 A for printer #1
.5 A for printer #2
.75 A for my air purifier
.35 A for a portable phone
.2 A for my cell phone charger
.08 A for my digital camera charger
That doesn't even include the TV, papper shredder, various external USB drives that I often plug in, etc.
Yes, all this stuff is on the same 20-amp circuit breaker. What am I missing here? Do the computers not really draw the power listed on the power supplies? If that's the case, how do I really calculate my needs? I have new gadgets to plug in, but I'm concerned.