The shock with the highest voltage reported survived was that of Harry F. McGrew, who came in contact with a 340,000 volt transmission line in Huntington Canyon, Utah. Prevention
Grounding the electrical enclosure of high-voltage machinery. Use of insulated gloves, insulated boots, mats and tools. Protecting electrical circuit with a residual-current device (RCD). Epidemiology
There were 550 reported electrocutions in the US in 1993, 2.1 deaths per million inhabitants. At that time, the incidence of electrocutions was decreasing. Electrocutions in the workplace make up the majority of these fatalities. From 1980–1992, an average of 411 workers were killed each year by electrocution. Workplace deaths caused by exposure to electricity in the U.S. increased by nearly 24% between 2015 and 2019, from 134 to 166. However, workplace electrical injuries dropped 23% between 2015 and 2019 from 2,480 to 1,900.
Shortly thereafter, in 1892, the term was used in Science to refer generically to death or injury caused by electricity. Factors in lethality of electric shock
The lethality of an electric shock is dependent on several variables:

Current. The higher the current, the more likely it is lethal. Since current is proportional to voltage when resistance is fixed (ohms law), high voltage is an indirect risk for producing higher currents. Duration. The longer the duration, the more likely it is lethal—safety switches may limit time of current flow
Pathway. If current flows through the heart muscle, it is more likely to be lethal. High voltage (over about 600 volts). In addition to greater current flow, high voltage may cause dielectric breakdown at the skin, thus lowering skin resistance and allowing further increased current flow. Medical implants. Artificial cardiac pacemakers or implantable cardioverter-defibrillators (ICD) are sensitive to very small currents. Pre-existing medical condition. Age and sex.Other issues affecting lethality are frequency, which is an issue in causing cardiac arrest or muscular spasms. Very high frequency electric current causes tissue burning, but does not penetrate the body far enough to cause cardiac arrest (see electrosurgery). Also important is the pathway: if the current passes through the chest or head, there is an increased chance of death. From a main circuit or power distribution panel the damage is more likely to be internal, leading to cardiac arrest.