There is some debate over grounding a cage, or box. The E3 pulse component runs through the earth. It has the potential to use a ground link to find a path to a box. E1 and E2 may require a box, but they are fast rise and fall, and last milliseconds. The E3 can run from 10 seconds to over a minute, depending on the weapon yield and alignment with magnetic fields. THAT one is the one that roasts large transformers.
I’m in the NO GROUND camp. Any charge that is outside a totally sealed, no perforated box, will stay there until it discharges naturally, or is ground-bled after the pulse event. Just my thoughts….
]]>