I purchased a used HP Proliant DL380p Gen 8 off eBay. It has dual redundant power supplies, both at 750 watts. Doing the math, I realize that if both PSUs are at peak load, they will pull 12.5 amps on a standard 120 volt circuit. Given that standard outlets can handle 15 amps, but are technically supposed to only use 80% of that due to electrical code, that would mean an outlet shouldn't supply more than 12 amps of power total. I also have a mini fridge that uses 0.8 amps plugged in on this circuit.
Additionally, I've read some articles that say the power draw of a server is based on the components inside it rather than the PSU's rated wattage. In that case, I have 2 Xeon E5-2640 v2 8 core processors (16 cores total, each of the two processors having a TDP of 95 W), 32 gigs of DDR3 ECC ram (8 4 gig sticks), 2 10k SAS hard drives, 2 enterprise class SSD's, and all the standard integrated hardware (optical drive, FlexibleLOM ethernet card, integrated P420i raid controller, ILO controller, integrated graphics card, fans, etc). I don't have any PCIe cards or additional hardware installed.
Is it safe to plug both PSUs into a standard outlet? How many watts/amps would the server actually draw at a maximum?