... foreign production. It is composed of high voltage reactor, double shield isolation transformer, regulator, high voltage capacitive divider, high voltage ... wire & cable manufactures.1.Figure Drawing of the system1-double isolation transformer 2-control desk 3-regulator 4-low ... our drawing) Resistance of insulating layer≥1000MΩ Attenuation of shield room:10kHz-100kHz:60dB-80dB,100kHz-100MHz:70dB-100dB ...