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1. In an isolated power plant, you ground things by literally stabbing a long conductor, with an appropriate diameter of perhaps an inch, about ten feet down into the ground. The depth is a key factor, usually to reach natural moisture in the soil, past the frost line in cold climates, and sometimes hit a shallow water table depending on local geography. Although ambient moisture and even static discharge via dry surface area alone usually do the trick. You literally ground a metal rod by sticking it deep into the ground, and then route gounding leads back to a service that provides electrical contact to the rod. 2. It isn't about the amps/voltages at all. It's all about heart strain, which is why they made note of the chest pains the victim was presenting with. With electricity, there are two main injuries to cope with: burns and cardiac arrest. In this case, it sounds like a brief discharge without any burning electrical arc, so no burns. The chest pains would seem to indicate that the current passed through the heart and surrounding pacemaker nerves, long enough to perhaps clench and strain the muscle (pulled miscles/soreness leading weakened low pressure), or stop the heart, denying blood flow, which can damage both heart and brain tissue. With brain tissue damage due to oxygen deprivation, loss of blodd flow, it would resemble a concussion. Based on the provides description of the event, CPR wasn't necessary, so figure it was electrically induced heart strain and not full cardiac arrest. Honestly, the whole thing sounds like a sort of staged social experiment, to see how a personality mix devolves, amid a stressful, seemingly life-threatening incident. |