Insulation and dielectric breakdown design considerations in sub-atmospheric environments

A detailed knowledge of electrical insulation and high voltage design techniques is essential if reliable high voltage systems are to be designed and manufactured for use in sub-atmospheric environments. The trend is towards more advanced systems operating at higher voltages in compact, economical packages that have been submitted to a battery of diagnostic techniques to ensure a high quality assembly. The purpose of this paper is to present an overview of high voltage electrical/electronic design considerations required to specify and apply electrical insulation to high-voltage parts, components and systems used in sub-atmospheric environments. Operating voltage, frequency, temperature, ambient gas composition, pressure, radiation, and structural requirements must be known when designing insulation for high voltage equipment.