INVESTIGATIONOFSPARKDISCHARGEINTHE GROUND ON REPRODUCTIONA LIGHTNINGCURRENT PULSEBY MEANS OFEMG

inductance of50-100 T,and,correspondingly, current pulses withamplitude ofdozens, andevenhundreds Lightning damage tolarge orsophisticated systems,amperes. Thus,toreproduce alightning current pulse suchas electrotechnical facilities and devices, withtheamplitude intherange of100kA,inthesystem communication systems andradio-electronic equipment Ofprotective grounding, additional devices tomatch thereof, etc.isoften observed. Problems onlightning reasonably low-impedance andmagnetocumulative protection areofaspecific importance, whenthequestion generators with high-impedance loads arerequired. isofsuchhigher hazardous facilities asammunitionForthis purpose, weemployed somemodifications of dumps, including nuclear andother military equipment thehigh-voltage pulsetransformer unit[2].The [1,2].Results ofanumberofexperiments onman-madeschematic diagram ofenergy source toassess voltageinitiation oflightning performed inunderground nuclearcurrent characteristics ofthegrounding rodssis shown in weaponstockpiles atSandia National Laboratory, have Fig. 1. shaken theconfidence oftheinvulnerability offacilities 7X