# Voltage stepping and current reduction

I'm designing a drone to use a relatively new form of propulsion, electrostatic fluid propulsion, which requires extremely large voltages (in the order of 10-100kV) running through a wire to ionize the surrounding air which is attracted to a positively charged collector below.

The issue, however, comes from the power source. I've never worked with voltages of such a high magnitude before, and even though I'm going to limit the current to infinitesimal ranges, I want to be absolutely certain that there is no chance of injury or death if someone were to come into contact with a HV wire. As far as the power source goes, I'm running current from a standard house outlet (120V) through a rectifier, and then a 4-stage transformer, wherein the voltage is stepped up by a factor of six in each stage. To martial the current levels, I'm using 15 1MΩ resistors in series, for a estimated current of 1mA (and a total power draw of 150W).

Is that combination of amperage and voltage is particularly lethal? Is there a better way to step up the voltage or martial the current?

• What 15M resistors are you using specifically? Dec 10, 2014 at 10:32