Pathophysiology

Body resistance

The voltage all-important for beheading depends on the accepted through the physique and the continuance of the current. Ohm's law states that the accepted fatigued depends on the attrition of the body. The attrition of animal derma varies from getting to getting and fluctuates amid altered times of day. The NIOSH states "Under dry conditions, the attrition offered by the animal physique may be as top as 100,000 Ohms. Wet or torn derma may bead the body's attrition to 1,000 Ohms," abacus that "high-voltage electrical activity bound break down animal skin, abbreviation the animal body's attrition to 500 Ohms."9

The International Electrotechnical Commission gives the afterward ethics for the absolute physique impedance of a duke to duke ambit for dry skin, ample acquaintance areas, 50 Hz AC currents (the columns accommodate the administration of the impedance in the citizenry percentile; for archetype at 100 V 50% of the citizenry had an impedance of 1875Ω or less):10

Voltage 5% 50% 95%

25 V 1,750 Ω 3,250 Ω 6,100 Ω

100 V 1,200 Ω 1,875 Ω 3,200 Ω

220 V 1,000 Ω 1,350 Ω 2,125 Ω

1000 V 700 Ω 1,050 Ω 1,500 Ω

edit Point of entry

Macroshock: Accepted beyond complete derma and through the body. Accepted from arm to arm, or amid an arm and a foot, is acceptable to bisect the heart, accordingly it is abundant added alarming than accepted amid a leg and the ground. This blazon of shock by analogue have to canyon into the physique through the skin.

Microshock: Very baby accepted antecedent with a alleyway anon affiliated to the affection tissue. The shock is appropriate to be administered from central the skin, anon to the affection i.e. a pacemaker lead, or a adviser wire, conductive catheter etc. affiliated to a antecedent of current. This is a abundantly abstract hazard as avant-garde accessories acclimated in these situations cover protections adjoin such currents.

edit Lethality

This area may accommodate aboriginal research. Please advance it by acceptance the claims fabricated and abacus references. Statements consisting alone of aboriginal analysis may be removed. Added data may be accessible on the allocution page. (December 2010)

edit Electrocution

The appellation "electrocution," coined about the time of the aboriginal use of the electric armchair in 1890, originally referred alone to electrical beheading (from which it is a blend word), and not to adventitious or baleful electrical deaths. However, back no English chat was accessible for non-judicial deaths due to electric shock, the chat "electrocution" eventually took over as a description of all affairs of electrical afterlife from the new bartering electricity.

edit Factors in accident of electric shock

The accident of an electric shock is abased on several variables:

Current. The college the current, the added acceptable it is lethal. Back accepted is proportional to voltage if attrition is anchored (ohm's law), top voltage is an aberrant accident for bearing college currents.

Duration. The best the duration, the added acceptable it is baleful — assurance switches may absolute time of accepted flow

Pathway. If accepted flows through the affection muscle, it is added acceptable to be lethal.

Very top voltage (over about 600 volts). This is an added accident over the simple adeptness of top voltage to could could could could could cause top accepted at a anchored resistance. Very top voltage, abundant to could could could could could cause burns, will could could could could could cause dielectric breakdown at the skin, in fact blurred absolute physique attrition and, ultimately, causing even college accepted than if the voltage was aboriginal applied. Acquaintance with voltages over 600 volts can could could could could could cause abundant derma afire to abatement the absolute attrition of a aisle admitting the physique to 500 ohms or less.

Other issues affecting accident are frequency, which is an affair in causing cardiac arrest or able-bodied spasms. Very top abundance electric accepted causes tissue burning, but does not access the physique far abundant to could could could could could cause cardiac arrest (see electrosurgery) Aswell important is the pathway: if the accepted passes through the chest or head, there is an added adventitious of death. From a capital ambit or ability administration console the accident is added acceptable to be internal, arch to cardiac arrest.citation needed.

The allegory amid the dangers of alternating accepted at archetypal ability manual frequences (i.e., 50 or 60 Hz), and absolute accepted has been a accountable of agitation anytime back the War of Currents in the 1880s. Animal abstracts conducted during this time appropriate that alternating accepted was about alert as alarming as absolute accepted per assemblage of accepted breeze (or per assemblage of activated voltage).

It is sometimes appropriate that animal accident is a lot of accepted with alternating accepted at 100–250 volts; however, afterlife has occurred beneath this range, with food as low as 32 volts.citation needed Assuming a abiding accepted breeze (as against to a shock from a capacitor or from changeless electricity), shocks aloft 2,700 volts are generally fatal, with those aloft 11,000 volts getting usually fatal.citation needed Shocks with voltages over 40,000 volts are about consistently fatal. However, Harry F. Mcgrew came into absolute acquaintance with a 340,000 volt manual band in Huntington Canyon, Utah, and survived. According to the Guinness Book of World Records, this is the better accepted electric shock that was survived. Brian Latasa aswell survived a 230,000 volt shock in Griffith Park, Los Angeles, according to Guinness.