Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Stencils for Visio RF & EE Shapes for Word Advertising RF Cafe Homepage Sudoku puzzles Thank you for visiting RF Cafe!
everythingRF RF & Microwave Parts Database (h1) - RF Cafe

Electrocution of the Human Body

Charles Dalziel, GFI Inventor (UC Berkeley) - RF CafeMan being electrocuted: funny picture - RF CafePhysiological effects of current density on the human body are shown in the table below. Contrary to popular belief, it is the current - not the voltage - level which is responsible for effects. According to Ohm's Law, of course, a certain voltage is required to cause the necessary currents to flow. Values show vary depending on the body.

Personally, I have been hit with 480 V while working on a 3-phase industrial motor connection. It didn't feel good.

See article on shock level versus pain level from Discover magazine.

The following table of quantity of electrical current and its effect on men and women is from work done by the inventor of the Ground Fault Interrupter circuit, Charles Dalziel.

Other RF Cafe resources on electrocution: Eliminate Risk of Fatal Electric Shock with the GFI | Mac's Service Shop: Electric Shock | Potential Neutral Conductor Hazards | Electrocution of the Human Body | Biological Effects of Electrical Shock | Resuscitation for Electric Shock | Electrical Shock: Fact and Fiction | Look Out! It's Hot!




Effect		 Direct Current
(mA)		 Alternating Current (mA)
60-Cycles 10,000 Cycles
Men (mA) Women
(mA)		 Men (mA) Women
(mA)		 Men (mA) Women
(mA)
Slight sensation on hand 1 0.6 0.4 0.3 7 5
Perception threshold, median 5.2 3.5 1.1 0.7 12 8
Shock - not painful and muscular control not lost 9 6 1.8 1.2 17 11
Painful shock - muscular control lost by ½% 62 41 9 6 55 37
Painful shock - let-go threshold, median 76 51 16 10.5 75 50
Painful and severe shock - breathing difficult, muscular control lost by 99½% 90 60 23 15 94 63
Possible ventricular fibrillation
Three-second shocks
Short shocks (T in seconds)
High voltage surges

* Energy in watt-seconds

 500

50		 500

50		 100
165√T
13.6*		 100
165√T
13.6*		    

Table retrieved from the "Deleterious Effects of Electric Shock," by Professor Charles Dalziel, 1961.

Current Level (mA) Effect
1 Threshold of sensation
8 Mild sensation
10 Painful
13 Cannot let go
21 Muscular paralysis
20 Severe shock
38 Breathing labored
42 Breathing upset
70 Extreme breathing difficulties
90 Ventricular fibrillation
100 Death

Above is the original table for this page.

 

 

Posted April 26, 2004
ERZIA (RF amplifiers, wireless, communications) - RF Cafe withwave microwave devices - RF Cafe
RF Electronics Shapes for Visio by RF Cafe
RF Electronics Shapes for Visio by RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com

spacer