HV Shielding for wheeled robot


I am doing an university project that consists in building a robot that operates in a AC to DC convertor. The robot has to work under HV environment. I am looking at possibilities of shielding the electronics of this robot. Can you give me any suggestions or links to look at? Also, will ultrasonic sensors work in such an environment. I could not find any evidence that shows that this is not possible.

Looking forward to hearing from you!!

Many thanks!!!