The key design factor in a VAV system is the control of. the supplied air. The terminal unit should be sized to. take advantage of as much of its potential capacity as. possible. Without this fundamental consideration, the. customer has not received the best value for their VAV. system design.
The amperage rating on the DC motor is not the amperage the treadmill will be using from your wall outlet. Most treadmills only need 10-12 amps from the wall (or less), so a 15 amp circuit is fine, regardless of the rating on the motor. Just look at the amperage rating on the treadmill to see what your wall outlet needs to supply. #2 see #1. #3 Current is always lost in the form of heat when used to power a device. Be it in the motor, the electronics or even the line supplying the current.
It's probably possible to be killed by only 35 volts if you have conductive gel on both your hands and grab two poles tightly. (one at 0 volts, one at 35 volts). Long answer: You can FEEL about 1milli-amp (one thousandth of an amp). Amperage is a measure of how many electrons are flowing through you. How much voltage it takes to make those electrons flow through you is very complicated. It depends on everything from how well you make contact with the power source to how old you are to what you ate yesterday and hundreds of other factors.