Engineering Q&A
State the factors on which severity of electric shock depends. 
in Testing and maintenance of electrical equipments by

1 Answer

0 like 0 dislike

The severity of shock depends on following factors. 

1. Magnitude voltage of the system. 

2. The period or duration for which the area of contact with lives part. 

3. It is also depends on supply system i.e. A.C or D.C. 

4. Frequency of supply 

5. Body resistance (If wet resistance of body reduces) 

6. General health of human contact with lives part. 

7. Path of current through body. 

8. The phase of the heart cycle when the shock occurs 

9. The presence of moisture in the environment. 

10. The magnitude of current passing through the body :- If magnitude of current is above 25 milli ampere it gives painful shock it may stop breathing/ there is loss of muscular control. 


The current strength
Effect on human system
1 A.C current of low frequency between 1m amp to 8 mA
Are just bearable does not cause any pains
2 8mA-15mA 
Give painful shock without loss of muscular control.
3 20mA-50mA 
If passes through chest, it may stop breathing 
4 50mA-100mA 
May result in ventricular cavity in body fibrillation. 
5 100mA-200mA 
May cause fibration of heart 
6 Above -200mA
Causes death, severe burns 

Related questions

2 answers
1 answer
Welcome to, where students and teachers can ask and answer any question. Get help and answers to any engineering problem including Electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc. Get answers to questions. Help is always 100% free!

Most popular tags

power motor dc circuit transformer voltage current system used phase resistance factor ac load synchronous induction energy electric generator electrical series frequency capacitor between plant line speed transmission use meter type advantages difference single mosfet control function instrument problem magnetic diode amplifier high bjt machine unit source motors and diagram winding shunt field parallel define electricity torque value maximum time relay types arduino supply digital armature applications thyristor working transformers wave on flow operation three coil material instruments state ratio signal emf effect formula efficiency theorem method disadvantages starting microprocessor network test operating direction controlled different logic transistor single-phase scr loss temperature connected rc law force inductance compare measure station wire low conductor principle wattmeter full characteristics measuring constant measurement breaker losses device converter bridge linear materials nuclear matrix flux drive resistivity of machines angle switch free rectifier protection core circuits battery solar gain thermal loop generators open negative analog number lines friction basic reactance short gate pole inverter the conservation diesel iron resistors capacitance engineering using direct main electronic electronics a steam induced relays hysteresis universal transducer computer feedback range distribution work secondary igbt algebra pmmc plants factors capacitors dielectric controller regulation systems design air fault components rotor cable starter oscillator eddy alternator application semiconductor ammeter rl average forces damping rlc connection zener electromagnetic biasing minimum insulation pressure balanced permanent moving errors running copper self analysis impedance stability quality start ideal curve over commutation is 3-phase arc permeability peak bias error fuzzy commutator conductors superposition density mechanical rotation construction measured electrons charge memory inductive two transfer explain fuse methods off back three-phase tariff locomotive installation welding heating rms surge rating generation potentiometer coupled shaded rate capacity storage adc excitation active pure resistor harmonics reluctance microcontroller voltmeter inductor internal 8085 cro reaction insulating overhead hydro resonance traction definition breakers earth

9,199 questions

7,945 answers


3,292 users

9,199 questions
7,945 answers
3,292 users