1. amounts of pressure. -Imphan lightning full wave format error not exceeding 3%. -Imphan lightning waves, wave-cut in front of no more than 5% in the wrong city. -Imphan lightning surge waves cut back no more than 3%.
1. Peak of pressure - lightning impulse waveforms full error not exceeding 3% -. Lightning impulse waveforms cut wave mistake was made not more than 5% -. Lightning impulse waveforms cut after wave error not exceeding 3%