The main room in this building was 65x132 feet, with a clear height of 60 feet. The entire room was lined with metal, thus constituting a Faraday cage, which prevented the escape of electrical surges. These might otherwise have disrupted measurements in nearby laboratories. X-ray studies and experiments with transformers at potentials of 1,000,000 volts could be made in the High Voltage Building.
National Institute of Standards and Technology
National Institute of Standards and Technology