I need to determine what the power line requirements for a system will be. Our in house EE is a small wire guy and he just shrugged his shoulders when I asked. For a 240V 3 phase system my long term RMS current pull is 5 amps but with a peak draw of 30 amps that may occur for a half second every 30 seconds. Do I tell the facilities guy a power requirement based off of the RMS value, peak or somewhere in between? I was thinking I should calculate the RMS value for a particular duty cycle but wasn't sure what time frame to work with.